Find cheap flights from Colorado to Las Vegas

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— LAS
May 26 — Jun 21
Round-trip
1 adult
Economy
0 bags
From?
To?
Thu 5/26
Thu 6/2

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Good to know

Low season

August

High season

December

Cheapest flight

$30

Average price round-trip

$297

Good deal round-trip

$67

Good deal one-way

$31
Best time to beat the crowds with an average 3% drop in price.
Most popular time to fly with an average 12% increase in price.
Flight from Denver Intl to Las Vegas Harry Reid Intl
(avg. price over the last 2 weeks)
or less
or less

FAQs for booking flights from Colorado to Las Vegas

Top 5 airlines serving Colorado to Las Vegas Harry Reid Intl

Scores according to KAYAK customer reviews
7.9
DeltaOverall score based on 30770 reviews
8.1Boarding
7.8Comfort
8.5Crew
7.8Entertainment
7.5Food
Airline reviews

I had an expired ticket for a free drink from the team. it expired during the pandemic. I purchased a drink when i think it would have been really sweet for them to honor it. Between trying to be safe and travel when i felt comfortable, I missed the deadline. It would be different it we hadn't been locked down all year. Just felt like if there was a time to be nice that was it and the stewardess mussed it. All good.

Read more about Delta

I had an expired ticket for a free drink from the team. it expired during the pandemic. I purchased a drink when i think it would have been really sweet for them to honor it. Between trying to be safe and travel when i felt comfortable, I missed the deadline. It would be different it we hadn't been locked down all year. Just felt like if there was a time to be nice that was it and the stewardess mussed it. All good.

Cons: "Delta.... they’rrrrrr Grrrreaaate!"
Pros: "Most of the crew was great with the exception of curbside check-in in Denver."
Cons: "Curbside needs to stop chasing cash tips and do their jobs. If they focused on that tips would be easy to come by. The curbside attendant that took my bag didn’t even bother to check my id. He asked me my name and asked where my destination was. I told him Cincinnati as a layover then LaGuardia where he said that was wrong. He then proceeded to print a boarding pass that wasn’t mine and load my bag into the conveyor. Not 5 mins go by when I realize what happened I wound up having to go to special services to rectify the situation. Which ultimately consisted of me waiting another hour in LaGuardia to get my bag. Please delta have these curbside handlers actually want to do their job and stop chasing cash tips."
Pros: "Crew was very pleasant. Boarding and deplaning was smooth and easy!"
Pros: "I never boarding this flight."
Cons: "Better communication skills."
Cons: "On board entertainment was inop, making for a long (4) hours flight."
Pros: "I think Delta is upping its game, and I’m pleased to see that. Almonds for snacks, phone info about the state of your checked bags—good stuff."
Cons: "Of course the seat was not “super comfortable,” but whe you pick Economy, you know that."
Pros: "Availability of WiFi, a charging port and media options puts Delta a step (or two) ahead of their competitors. The professionalism of the crew, as well as the complimentary food/beverage options are also excellent."
Cons: "Not the airlines fault, but my 6’4” frame doesn’t fit very well in a middle main cabin seat."
Cons: "Flight was delayed almost 3 hrs. Ran out of food right before my row. I upgraded my seat but feel I got the short end of the stick."
Pros: "We arrived eventually."
Cons: "Flight delayed three hours. Payed extra for an earlier flight. Very disappointing."
Cons: "Delayed 4 hours"
Pros: "Flight left on time and landed on time"
Cons: "4 hour delay"
Pros: "Comfort + was nice."
Cons: "Had a middle seat between two other men. I was given my seat by the gate. It would have been nice if they placed my more strategically. That might be asking too much but seems reasonable."
Pros: "The service by delta employees for this leg of my journey was beyond great. The leg room was above average."
Cons: "Leg room. Never can have enough leg room."
Cons: "Choice of healthier snack"
Pros: "Good airframe."
Cons: "3+ hours delayed; didn't arrive until 3AM."
Cons: "Seats are so small. Flight was delayed."
Cons: "After a delay of about an hour on a very full flight the gate agent asked for volunteers to check their rollaboard suitcases. The gate agents then allowed those who checked their rollaboards to board before Zone 1,which was fine. However, a bunch of people without gate check stickers on the rollaboards were also allowed to board before Zone 1, which was aggravating. There was a long delay on the tarmac, during which we had to pull back to the gate or to a maintenance area before we finally took off. When we arrived in Vegas there was no gate for us to pull into, which led to another long delay of an already long and delayed flight."
Cons: "The seats were in bad condition, I was surprised as Delta usually has well cared for interior and exterior airplanes."
Pros: "The flight attendants were all helpful and pleasant. The seats were comfortable. We were provided with plenty of liquids."
Cons: "The landing was pretty tough and we took off almost a half hour late."
Pros: "Very friendly gate attendants helped us fix the problem that our frequent flyer number had not been entered on the boarding pass. This may have been because of the booking co., Just Fly."
Cons: "Would have liked more seat options, like when I book on Delta's website. Didn't have enough advance warning."
Pros: "Food and entertainment was good"
Cons: "The bathroom I used was disgusting."
Pros: "Check in Denver super helpful Gate staff hustled to turn around flight Flight crew excellent"
Cons: "Flight delayed, almost missed international connections"
Pros: "Short flight"
Cons: "In SLC they boarded by row numbers and not zones. Weird..."
Cons: "Engine problems-2 hour delay"
Pros: "Great people and crew early arrival nice passengers"
Cons: "Poor Delta DEN counter agent experience. Name on ticket didnt match Delta profile name nor TSA [rofile name. Delta counter agent would do nothing, except blame TSA. Would not check ticket name vs profile name. Happened two consecutive flights. Flight tomorrow morning has no TSA Pre clearance on boarding pass. This will be three consecutive flights. Also seated me next to a person who needed 2 seats to himself. Please never seat me next to a passenger who cannot fit in their own seat. I am switching to SWA."
Pros: "Quick friendly service from crew and captain."
Cons: "First class seat was broken was reclined and super uncomfortable the whole flight the plane was super outdated and old."
Pros: "Crew was nice."
Cons: "The Entertainment sucked. Again I was sitting in comfort class which in theory should buy you more comfort and better entertainment. There was a ton of movies from the 90s and the same movie selection from about 6 months ago when I traveled with them. Also, what is going on, with having to use your own cell phone to watch movies on the plane? Whatever happened to the screens in the backseat of the front seat? I ended up with neck pain from trying to watch a movie on my phone. Delta has become very cheap. It is going into some serious decline."
Pros: "Nothing"
Cons: "Let me just say that I’m a loyal Delta costumer until now. The flight attendants (the two women) were an absolute nightmare. They were so rude and condescending. I was carrying with me my service dog and a bag containing an expensive medication (it couldn’t go on the top bin). Despite being in the comfort class and having the seat next to me empty, we were tight for space. The flight attendants were unreasonable and forced me to put my medication on the top bin despite the fact I had told them it was extremely delicate, that it that to go upright, and that I needed to keep it with me. They did not listen and pressured me into giving them the medication. The medication could have easily gotten broken. Thankfully it didn’t but this is no way to treat a human being."
Pros: "Entertainment system is awesome and similar to what I usually see only on international flights."
Pros: "Good selection of movies/shows."
Cons: "Flight was delayed half an hour due to “medical emergency”. Guy passed out as we were about to take off so we turned back to the gate and sat on the plane for over 30 mins while we waited for medical personnel to check the guy out. Then had to wait another 15 mins for the fuel truck to refill us because we had burnt so much sitting there. I understand that we had to turn back due to his condition but why was he not removed from the plane and put on a later flight when he felt better instead of making all of us late? You would think after all this the crew would be kind and appreciate our patience but 2 of the flight attendants were the exact opposite of that. Both of them were very short with people and the one kept rolling her eyes at people as they were handing out drinks. The only thing I would give 5 stars is the tv entertainment. My seat wouldn’t even recline for me to enjoy though."
Pros: "Most comfortable flight I have taken in some time. Spacious seat, power, good entertaiment, attentive flight crew. On time. Not usually a Delta flier, but times and destination made Delta the choice. Turns out a great choice."
Pros: "Crew was the best!"
Cons: "I really dislike the snack boxes. Snacks need to be more like a small sandwich or grapes, cheese and nuts. Not all that packaged stuff."
Pros: "Staff pretty friendly. Plane clean. Ran on time. Good communication. Even though shorter flight, had movie entertainment option. Before flight we had a flat tire so missed our flight. Agent extremely helpful getting us on another flight."
Cons: "I liked it all"
Cons: "I froze on the way to Las Vegas and there weren't enough blankets."
Pros: "Staff was courteous, flight uneventful but that's a good thing!"
Cons: "Long flight, difficult to sit that long (3 hrs plus)"
Cons: "I fly Delta quite often, and am usually pleased with their service, but the morning of June 23 was terrible. I got to the airport in Denver at 5:30 am for a 7:30 am flight to Atlanta, and the line to check a bag was about 40 people long. I waited 55minutes to check my bag, as they kept moving the ski priority people, and people in danger of missing their flight, to the head of the line. There were obviously not enough Delta workers on staff to process all the flights at that time."
Pros: "The moviea"
Cons: "The time of night"
Pros: "Nothing"
Cons: "Two out of three flights were delayed, customers service of the flight operated by Delta airlines is a nightmare and on top of it 2hours and 40min delayed. No drinks, no snacks, nothing."
Pros: "Ok"
Cons: "Was ok"
Pros: "The flight attendants were so nice and accomadating. Even came by to refill our waters! I've never been on a flight with such friendly flight attendants!"
Pros: "We arrived in Las Vegas"
Cons: "Even in first class, it appeared to me that the legroom has been decreased."
Pros: "Good entertainment with games for kids, movies etc."
Cons: "No meals (5+ of flying), need to buy earphones, no place for hand lauggudge"
Pros: "Reassignment was pretty easy."
Cons: "No accommodations were available for overnight stay due to delayed flight."
Cons: "Seats too close - I'm not that tall and my knees were jammed against the seat in front of me."
Pros: "Was able to get on a flight after ours was cancelled. Delta was in scramble mode and their gate staff worked hard ot deal with a frustrated flying populaiton"
Cons: "After paying for first class round trip airfare, we were given seats in coach in the rear of the plane, in spite of empty seats (plenty of them) in first class and economy comfort."
Pros: "The flight attendants were nice and polite!"
Cons: "My cell phone needed a charge but I did not realize that at my feet was a place to plug in a USB cable! This is great to have, when this is available it would be great to let the passengers know!"

Pleasant flight. Everyone was on the same page. Efficient boarding and nice checkin experience. Bags were delivered to baggage claim quickly in Las Vegas.

On both legs of my trip, going out and coming home, the flights were delayed. I had to run through PHX to get from Term A to B because the delay left me with <20 mins to departure. Staying consistent, the departing flight was late and I made the flight. Seems that a schedule is just a suggestion on American

Aside from the 5-6 texts for the flight changing the flight was pretty comfortable

Pros: "Comfortable seats"
Cons: "It was all good"
Cons: "No gate when we landed."
Cons: "Unexplained 3 hour delay. They couldn't be bothered to automatically rebook me to an earlier flight (other airlines do this). They also couldn't put me on standby over the phone?! I had to wait for someone to arrive at the gate and then get on standby."
Pros: "Good flight"
Cons: "Delays"
Pros: "The entertainment on the flight"
Cons: "Flight was delayed"
Pros: "Crew and seats super comfy"
Cons: "TV in the seat"
Pros: "Nothing"
Cons: "Everything"
Cons: "Space"
Cons: "Better entertainment"
Pros: "Great crew - good attitudes."
Cons: "Delayed for an hour due to a log book issue."
Pros: "Crew was very nice"
Cons: "No drunk option other than orange juice or water, and orange juice gives me heartburn so more options necessary"
Pros: "Nothing."
Cons: "Staff, room, boarding process, flight schedule and more!"
Cons: "I upgraded my seats, but we still didn’t get any extras for the price."
Pros: "Overall clean and comfortable"
Cons: "A coffee or a snack"
Pros: "Everything except cabin comfort was fine"
Cons: "Very hot on the whole flight"
Pros: "Straight to the point,easy,and convenient"
Cons: "Nothing yet"
Pros: "Convenient without problems"
Cons: "Paying"
Pros: "Agents and flight crews are great."
Cons: "Too many people for too little space in gate areas in Phoenix. Not enough outlets or seating...or just space."
Pros: "Basic flight. Super uncomfortable seats. Older plane. Cramped. Pilot was great. Flight smooth."
Cons: "Got there safe!"
Pros: "We took off and landed safely."
Cons: "Felt very low budget and cramped."
Pros: "At Least the Staff was keeping us updated."
Cons: "No good-faith gesture was offered for the long delay. My associate and I completely missed an important dinner meeting with the rest of our team! Our team takes this trip each year and we have always drove. It' short and I then have transportation when I arrive. This year we decided to fly because it's even easier. This particular flight from Phoenix to Vegas took us longer then if we were to drive and I then spent more in RideShare. I won't be doing it again next year."
Pros: "The crew was nice"
Cons: "Flight was delayed"
Pros: "It was fine. Just not anything great."
Cons: "Many groups were not seated together. at the airport I asked if my husband and I could be put together . One worker seemed interested in helping, but another rudely butted in and said there "were no seats together, the flight was full." Come to find out the flight was not full, there were whole rows not full. The groups near our seats rearranged ourselves so we could be by our family members, so it worked out. No thanks to the person at the terminal. Really long walk from the gate to the plane. No food on a cross country flight. Only a few cups of water/soda and a cookie. which unfortunately is typical now days. The lights were off the whole trip. The captain kept turning on the seat belt sign for the turbulence. Which there was a lot of. But then he would announce for everyone to go back to their seats. It wasn't huge bumps, just a little rough. and it woke everyone up by announcing it multiple times."
Pros: "Comfortable seats"
Cons: "Seats were narrow"
Pros: "Not much"
Cons: "Passengers brought hot food on board at Dallas. McDonalds and KFC odours were overwhelming for first 30 minutes."
Pros: "Very smooth flight. Competent crew."
Cons: "It was all good."
Cons: "When I️ went to the gate to Ben seated they said there was overbooking, but 10 min before departure they allowed me to fly"
Pros: "Oh the crew was very pretty. They spent more time on themselves their hair their make up and on their phones than they did the entire first class. Check our flights and miles. We fly AA ALOT for ourselves and other. WCB4350 Shipman. We don’t complain ever. But when you spend what we do and only just get your first drink with your dinner in the air is utterly ridiculous. Never got a clean up or a second drink. Had to interrupt the glam squad from their phones and make up bringing them our dirty glasses and trash asking for a second drink. Not impressed with this crew at all! Normally AA IS TOP KNOTCH. So it sets the standard that we’ve been accustomed to however complete and total letdown on this flight"
Pros: "Boarding and flight was on time."
Cons: "Nothing"
Pros: "Customer service people were nice."
Cons: "American Airlines broke my carry on luggage handle and was told that I couldn’t claim it even though I was told that I had to check it in. Airplane was cramped, felt really uncomfortable"
Pros: "Seats quite comfortable. Crew ok."
Cons: "Pitiful food offering and no entertainment at all when on previous 1.5 hour AA flight choice of movies."
Pros: "The crew for the most part was nice."
Cons: "It just wasn't a comfortable flight and then a extremely bumpy ride all the way from LA to NYC."
Cons: "Boarding complete chaos. Looked like Bangladesh. Very unorganized. No airline has ever explained why they do not board from the window seat out. Would reduce much confusion. Too much to handle."
Pros: "Good preferred seat."
Pros: "On time."
Cons: "The door team was all over the place creating a chaos at the time for boarding the plain. I've notice several people in front of me were complaining due to the boarding dynamics. (Not smooth boarding)"
Pros: "Nothing"
Cons: "Seat 17F is very short on leg room for a 6 foot man. Flight attendants didn't care and rough landing; pilot needs more practice."
Cons: "Being led to pay to select seats on flight that was only 50% full"
Pros: "Plane was clean; staff professional; no issues."
Pros: "None at all. Very poor customer service."
Cons: "Very poor customer service. Flight attendant name Daryl H. Colored male , declined to help me put my carry on luggage onto the over head bin. Instead he scolded me not to bring carry on luggage if I can't put it in. The bin wax too high for me . I'm 4'10 inc tall and unable to reach the over head bin. And Daryl H, was sitting on my paid chair. A nice passenger offer his help and put the carry on to the bin. I will not book this airline again."
Pros: "It was last minute booking, I was balky for the price and the overall experience was comfortable."
Cons: "They forgot to get my coffee but it's nothing major plus we were about to land in 30 mins or so"
Pros: "Direct flight"
Cons: "Delayed 2 hours, gate changed, no free food"
Cons: "Our flight was delayed and then cancelled. We were given new flights the next day 8/20/16 and that was delayed for a few more hours. We wasted a day and a half at the airport and our hotel for the first night could not be refunded."
Cons: "Once again the flight was delayed. Last time American Lost my connection TWice! It took me two days to reach my destination. I was cramped in a middle seat and one of the flight attendants was rude."
Pros: "On time flights."
Cons: "Middle seat."
Cons: "The flight was cancelled. Then we all were told to re-ticket at customer service. Waited on the line for 2 hours to get a stand by ticket for the next flight. Luckily I was the second from the last that got the seat, or else I would have to wait for the next flight which would take even longer than just drive to Vegas myself. I asked customer service to accommodate me with some food coupon since I had to wait for the next flights...they said they don't have that kind of accommodation, really?!!!"
Pros: "The crew was nice enough , app updates are nice"
Cons: "To many technical issues with this airline , everytime for the last 2 years there's a mechanical problem or issue with a plane blocking runway . Honestly I've never been on time with an American Airlines flight . I could have taken a bus and gotten to my destination faster, communication is poor , had to walk from terminal 4 to 6 because they have gates at both but didn't post the correct terminal to my ticket , so I walked from 4 to 6 ... Then the delay made me walk back to 4 because of a gate change . Then we waited on the plane for another half hour . All in all its not really the staff but more so the actual operation of the airline that I'm not willing to work with anymore ."
Pros: "Crew was awesome and attentive. Smooth flight and clean."
Cons: "Mone"
Pros: "Crew and plane ride."
Cons: "The seats hurt us."
Cons: "If you dont have TSA precheck....get it...lifesaver"
Cons: "The plane was filthy. It made me sick thinking that im stuck on this plane that they never clean..in the peak of sick season."
Pros: "Crew was nice"
Cons: "Leg room"
Pros: "Not much after sitting in the airport for two extra hours on both flights"
Cons: "They could have boarded flights on time or at least explained why the flight had been delayed."
Pros: "Crew was nice and efficient."
Cons: "Check in counter needed more help-line very long"
Cons: "They charge $50 for a carry on bag!!!"
Pros: "Boarding was fast. We arrived early."
Cons: "It was too cold & they kept turning on the lights (it was a late night flight)."
Pros: "Nothing"
Cons: "Flight attendants talked loudly the whole flight. Very uncomfortable"
Pros: "The crew was very nice."
Cons: "The AC was broken - only the front half of the plane was getting it. The back half was very hot."
Pros: "Comfort nice cool cabin on boarding"
Cons: "No complaints with airline but flight was a little ruff on approach made me a little nauseous."
Pros: "We had about a 45 minute weather delay but those things can't be helped. The Captain kept us informed and he flew like superman getting us through all that crazy wind coming into Las Vegas. The plane was new and clean, the crew was great. Love that wide aisle...it eliminates that sardine feeling!!"
Pros: "Definitely the price. Fairly quick boarding process, just a little congested. Decent priced drinks."
Cons: "Not the most comfortable seats, but there was no one next to me, so it was okay."
Pros: "The crew was amazing"
Pros: "The gate agent was amazing and super helpful."
Cons: "Seats are tight and not very comfortable."
Pros: "Nothing"
Cons: "Still in Reno. Aircraft broke down"
Pros: "LEFT EARLY ARRIVED EARLY PERFECT"
Pros: "The staff was friendly"
Cons: "The flight was delayed multiple times, the directions on having boarding passes on the app or printed prior were not given so found that our last minute to avoid paying the front desk clerk $5.00. The flight landed 5 hours later than scheduled which is completely unacceptable."
Pros: "Nothing, honestly. Constantly delayed, cheap airline with forced fees, only one I could take and I can’t believe you exist. You have horrible customer service"
Cons: "I will never fly you again. Sure you don’t care."
Cons: "So many charges at every step. $5 for boarding passes?"
Cons: "I am so angry booking with them. I booked the flight and then thought, ok I will add a rental car. It said clearly that the rental Car could be canceled up until 24 hours before the flight. Well, 2 weeks before the flight, my friend said, don’t get a rental car, I will have my car. So I cancelled and only then did I find out that once I booked it through their site I could not get a refund for the car and I could only get a voucher for use on one of their flights! And only after they take out any fees and costs that was accrued! So angry!"
Cons: "Flight was very late. Have to pay $45 for a carry-on bag. Seats were uncomfortable and have to pay for all snacks and drinks including water."
Pros: "It was easy to book. And they helped me make changes to my flight schedule without charging me"
Cons: "Everything else is charged... from the in service beverage cart, to your boarding pass. Your baggage. Everything you have to pay for. So just be prepared for that."
Pros: "Quick boarding with no fuss."
Cons: "The planes could be a lot cleaner."
Pros: "Better than on time Smooth sailing through south bend airport!"
Cons: "Just have to remember thrift airline No seat going back"
Cons: "baggage staff was super rude. She told me I am the last passenger on the plane which wasn't true. She made me pay $50 because of little overweight. I could easily redistribute the weight among my bags if she gave me little chance. I was a single mom with two kids (3 months and 3 years old) had to pay a fine which I can't afford. Thanks for giving me the chance to express my feelings."
Pros: "Friendly staff"
Cons: "Last minute delay due to a plane malfunction. Was told very last minute. Seemed like there were no quick resolutions in play. Had to wait over three hours to fly out, doesnt that entail compensation by law?"
Pros: "Fare and friendly staff."
Cons: "No wi-fi."
Cons: "Our engine seats at the rear of the plane were of course a little noisy at first. We got these seats on both our flights. Hoped that at least one-way we would have managed seats with a window."
Pros: "Love the ticket price, but charging $44 for a carry-on? C'mon man! Added charges that were worth it? Priority boarding: $15, Exit row seating: $25 Also be advised that all food & drink is for purchase and must be purchased with debit or credit card - absolutely no cash."
Pros: "On the way there and back the staff was friendly, the flight was smooth and and overall everything was just great. This was my first time flying with Allegiant and I will definitely do it again."
Pros: "I arrived safely Tommy Destination"
Cons: "It was so hot boarding and unloading. There was no air. Staff was curt and not very friendly as of assistance."
Cons: "Old plane with fixed seats with very limited leg room which were not comfortable- broken window shades, scratched windows, & rattles everywhere made for a long flight. Crew was ok, I would fly again if the price was enough of a savings"
Cons: "Allegiant 468 7/27 4 1/2 hour delay on flight 569 on 7/27 and not a single person on the ground or plane even said sorry. Allegiant also failed to update the revised departure time. Allegiant posted an initial delay of 30 minunutes but then, when there was a further 2 hour delay due to a problem with the plane in Vegas Allegiant didn't update the time. (G4 568 was showing a two hour delay, with a 1010 arrival into STS but Allegiant never updated the departure time for 569 to reflect the additional two hour delay.) It wasn't until I called that it got updated and when I called I had to point out that the airplane hadn't even left Vegas and Allegiant was still showing an 8:50 departure time. It also took the reservation agent over 20 minutes to get any information about what was going on. Lastly each and every time I call I was on hold for a minimum of 20 minutes before being able to speak to a person"
Pros: "Comfort and speed of the flight. Attentive staff!"
Cons: "Need one craft beer"
Pros: "No complications and efficient boarding"
Cons: "The people that stand up when the plane stops even though they are going to have to wait till the door opens and everyone in front of them has to get off before they do."
Pros: "Their flights are always delayed. They have some pretty old flights and they always get broke before the take off and they have to do some maintenance before take off. Not going to fly again with them."
Cons: "Entire flight experience."
Pros: "Cheap"
Cons: "Literally had to pay for every little thing that is usually included in other airline tickets."
Cons: "The flight got cancelled - trip had to be completely rearranged."
Pros: "The price of the flight was cheap, but i know why. You ended up paying for your carry on luggage, ypu pay for seat assignment if you want to guarentee sitting with you party, you pay for soda. My flight was 1.5 hours late, due to mechanical problem. Plane was janky and it felt like it STILL needed repairs."
Cons: "Low airfare."
Pros: "The price and the nonstop flight."
Cons: "6+ hour delays Plane looked to be in sad shape, paint peeling, looked bolted together from spare parts. Strange Air Conditioning issues mid-flight that turned the plane into a walk-in freezer. upon landing our entire flights bags were abandoned and there wasn't a single Allegiant representative in the airport to communicate with the airport baggage people. After 1.5 hour wait our bags were finally offloaded onto the baggage claim by an airport employee not normally tasked with the job. Allegiant was paged over and over with no response. I will NEVER fly Allegiant again."
Cons: "Delayed 5 hours!"
Cons: "Two out of three bathrooms out of order"
Pros: "Nothing."
Cons: "They overcharge for bags and their weight limit is only 40 pounds. They leave the desk and hour before take off which doesn't help people who are running late. They charge you to print out your boarding pass. They don't even send the boarding pass through email, you have to download the app. Overall horrible customer service. When call for customer service you can't even get a human representative. I missed my flight and they didn't even have another flight to to accommodate me to get to my destination and no one at the front desk to talk to."
Pros: "Airline was great. Told us right away they were only going to do one drink service so we could order two. Left on time and had no issues. Would definitely fly with them again. Even though you have to pay to check a bag, it's still a better deal than any other airline out there. People need to stop complaining about the extra fees, do you want cheap or not."
Cons: "Nothing. Was exactly what I expected for a $35.00 flight."
Pros: "Nothing"
Cons: "5 hour delay. They offered meal vouchers. For 8 dollar like wtf? But of course they offered them after every place closed in the airport."
Pros: "Really smooth flight, quick and easy to Las Vegas..."
Cons: "Paying for checked luggage..."
Pros: "The flight left on time. Friendly crew"
Cons: "I don't like that they charge for carry on bags and they don't have a toll free number"
Cons: "I didn't like the schedule time change. Very inconvenient missed some of my planned festivities that were prepaid."
Pros: "Time of travel"
Cons: "No leg room"
Cons: "Media entertainment selection"
Pros: "Crew very professional and provided excellent service."
Cons: "Boarding process chaotic."
Pros: "Nothing. At all."
Cons: "Everything."
Cons: "Wouldnt refund my ticket or change my flight when I needed to change it fee for everything"
Pros: "The staff was kind and flight was smooth"
Cons: "The plane was small and cramped. I could barely bend down to get my bag from under the seat in front of me and I'm tiny. I can just imagine how bigger people felt."
Pros: "Nothing."
Cons: "Uncomfortable"
Cons: "Took off an hour late from a gate all the way across the terminal from the assigned gate. Promised "free" Direct TV did not work and the Wi-Fi didn't either."
Pros: "Nothing."
Cons: "Delayed flights leading to incredibly tight connection times, staff inconsistent with messaging re the source of the delay, zero compassion for customers, offering $700-$1,400 to get off the plane when you charge $200 to change a flight 2 weeks in advance is especially galling! Will not fly with United again whenever there is a viable alternative to my destination."
Pros: "Great service! Smooth flight!"
Pros: "Flight was smooth, attendants were great."
Cons: "I was so uncomfortable in my tiny seat. They are small and awful."
Pros: "Everyone was really nice."
Cons: "Not enough free food options for active duty flyers."
Pros: "Comfortable seats. Great crew. Enjoyed the random jokes."
Cons: "Long taxing"
Cons: "Nothing"
Cons: "The crew allowed an excessively foul smelling person on the plane who was obviously Intoxicated on some illicit drug and smelled so bad that it made the entire area unbearable."
Pros: "Staff was pleasant, decent movies overall."
Cons: "I can't eat mushrooms. Both meals had mushrooms (3 out of 4 entrees) and it wasn't always obvious which ones. Additionally, the second meal with seafood or pasta, the pasta obviously had mushrooms so I chose seafood, even though I don't like most seafood. Mushrooms all mixed in with the seafood, so I had to pick them all out. Also 2 of the accompanying sides had mushrooms. Do they have a mushroom fetish like Cheesecake Factory? Need more consideration for people who may have varying food requirements that are unavailable to address during the booking process. I know you can't please everyone, but why overuse an ingredient that has a relatively low appeal to potential passengers? Will try again, just hope they can use similar customer service in their food preparation as they have otherwise."
Pros: "United Airlines for a change did a decent job flying back to LAS unlike our flight from BUF to EWR which got canceled and we had to drive to Newark which was not only disappointing but to witness customer service uncaring even more distressing."
Cons: "We may not choose UA for our family from now on. Quite a bit of confusion even when trying to reach customer service over phone, the hold time is 15 to 20 min?"
Pros: "We got let in first because we had a baby under 2. A stewardess felt bad for our seating at the end and gave us a free blanky for baby and a free shot for me."
Cons: "The flight was delayed 2 hrs. The back seating was horrible. One crew member made fun of my sister for walking too slow on the way out. Like seriously we were the last seats on plane and had a baby. So yes we were slow!!!"
Pros: "Quick Hop"
Cons: "Just a quick hop to Denver"
Pros: "The space in this seat I had, was awesome. The boarding crew was rather pleasant and I loved how my gate was right next to my next gate."
Cons: "The attitudes of the flight attendants on this particular flight; they seemed highly agitated, probably because they looked tired, but who knows? Their performance reflected their attitudes."
Pros: "The crew was nice."
Cons: "Got stuck with the last row of seats. I never previously had the last row for a flight but to be honest it was definitely the worst seats on the plane. What makes it worse was these were not tickets I bought last week but on united economy they only give you seat selection just days prior and no explanation as to why you are placed in a particular row. Stuck near the bathroom and the seats do not decline at all though they deceptively provide the button to recline your seats. Horrible experience and one more reason to not fly United."
Pros: "Had a flight delay in csprings but United had plane going to Denver for delivery they put us on no one missed their connection yeah!!!!"
Cons: "This was a good trip! No complaints ."
Pros: "Status quo"
Cons: "Flight was late arriving to gate hence late leaving, had a connecting flight."
Pros: "Friendly staff, great customer service"
Cons: "None"
Pros: "I would like to give a rating lower than zero for this airline"
Cons: "Oberbooked"
Cons: "Again a full flight and this time I was seated next to an Asian male. I'm deal thy allergic to fish and what did he bring to eat, yep you got it. While I know it's a right for him to do so, I spent the flight with puffed eyes and throat issues. Again, the flight was overbooked"
Pros: "Most of the flight attendants were kind."
Cons: "Some of the flight attendants were unkind"
Pros: "United is always a great way to fly. The crew is always nice and even through my delayed flight back to Vegas the captain stood between the walkway and plane an apologies and spoke to everyone which was new for me. Thanks united flight 455 to Vegas from SFO 10:44.."
Pros: "On time, flight attendants were friendly"
Cons: "Delays"
Pros: "I liked that it was on time."
Cons: "The flight attendants are rude and cranky. The plane was hot and over booked."
Cons: "after transferring from terminal B after a long walk then another long walk to transfer to Terminal C and another walk to baggage claim for a 70 yr.old woman and no transport available is intolerable and unacceptable! It is so disgusting that I am a frequent flyer via United Airlines and getting more and more dissatisfied cause of the troubles I'm encounterring flying with United Airlines! I should think twice,the next time I'm booking with the airline for my next flight!"
Pros: "Everything"
Cons: "Time on planes"
Cons: "Delayed departure again"
Pros: "Nothing."
Cons: "Multiple long delays."
Pros: "Everyone we dealt with was unbelievably kind and helpful. They had a wheelchair at the gate and helped push my disabled brother which was such a help for my elderly parents to make their connections. When I got my parents their tickets I was very apprehensive that it might be difficult making the connections but thanks to United's wonderful service their whole experience was fantastic. In the future I will always try to book United."
Pros: "First of all the captain let us board early and get settled, the flight attendants were very friendly and the take off and landing were smooth, it was a great flight the seats were comfortable and the trip was short."
Cons: "Anything the flight was delayed a couple of times and then the terminal was changed at the last minute"
Pros: "The view and legroom was nice."
Cons: "I collect disability each month so I am on a very tight budget. The Spanish speaking woman that pushed my wheelchair told me that I can bring my water bottles full of water through the metal detectors. I asked if she could take me somewhere to pour them out and refill them on the other side. They threw them away at the metal detector. So I had to buy a new bottle for my medicine that I have to take. You would think she would have got it by me carrying these bottles around but nope. She actually said to me that I can give her gratuity now if I wanted. I gave her $1. She then replied in a sarcastic voice " Thankyou you are soooo generous. I don't like feeling obligated to tip somebody because I am disabled and have a bullet in my head."
Pros: "Friendly and accommodating our requests."
Cons: "Lady directly behind me literally choking, couching, sneezing and constantly blowing her nose (really runny), that was not enjoyable at all. And her two (2) companions were not provide any relief for her."
Pros: "Attention from crew."
Cons: "For a 5 hour flight, instead of a glass of coke or juice, I should get the whole can. Need an alternative to a cookie. some people have 'sugar problems'."
Pros: "Didn't have food"
Pros: "Short lflight"
Cons: "NA"
Pros: "The flight overall was great, easy to board and de-board, and a smooth process from start to finish."
Cons: "Connecting to the in-flight wi-fi to watch movies and tv shows was nearly impossible."
Pros: "They know their business"
Cons: "No free Internet. Costs too outrageous."
Cons: "Same as first leg of the trip"
Pros: "Nothing"
Cons: "They only had enough to food for the front of the plane , me and everyone in back was left hungry, I have never been so disrespected"
Pros: "My flight wasn't full so I had no one sitting next to me."
Cons: "Snack wasn't very good"
Pros: "Well organized, enjoyable flight"
Cons: "Na"
Pros: "The messages updating ( gate change, delayed and revised date if departure , Ext.) is regarding the trip Is awesome."
Cons: "Very delayed"
Pros: "Time and confort"
Cons: "flights on time - no complaints"
Pros: "On time. Good crew. Pleasant overall experience."
Pros: "Nothing"
Cons: "Seats on plan were horribly uncomfortable. Food to the point of a scam expensive. Airplane lost baggage with over $1,000. Including seeing glasses gone. Trip ruined. Rest of luggage was soaking wet like they left it laying outside in the rain. Horrible horrible company."
Pros: "Crew was friendly."
Cons: "Flight was delayed for over an hour, no explanation given. Further delay as we sat there after nearly everyone was boarded and people trickled on for probably 20-30 min. It seemed like they were just taking anyone on the flight that they could find wandering the airport. Conditions were cramped, miserable, seats uncomfortable."
Cons: "Flight to Vegas was delayed several times. Flight from Vegas to Denver canceled… Waiting for my $500 lien voucher from front tier…"
Cons: "flight was delayed 2hrs because "the plan was messy". in my opinion it does not take 2hrs to clean a plane so I felt as if that was an excuse for something else that was bad on their part. Even if someone puked on the flight before that, that can deffently be cleaned in a quarter of that time unless the airline is to cheap to have the cleaning supplies on hand."
Pros: "The fare."
Cons: "On top of the nickle and dime, the seats are hard as a rock. Will not fly with Frontier again."
Pros: "Modern planes. Good on board crew."
Cons: "2.5 hour delay, no explanation why."
Pros: "Not a thing."
Cons: "Everything. Worst service, constant delaying for flight, long wait when boarding. I haven’t seen such a bad airlines before. The seats were horrible, the pull out tables are so small. The customer service over the phone didn’t help what so ever. Took them over 10 minutes in for myself to just ask them to look up my ticket and actually do something about the issue, online booking messed up my name on my ticket and almost cost me $2000 to change it."
Pros: "Price, that's all I can say..."
Cons: "I'm 5'11" and 140 lbs. Would be called skinny by most. I really feel for those unfortunate souls who get a mere 2-3" OR LESS of knee room before hitting the seat in front of them. What a joke!"
Pros: "Squished accommodations"
Cons: "Turbulence"
Pros: "Smooth flight. On time departure/arrival."
Cons: "Seats uncomfortable. No leg room. Layover in Denver was extended by 1 hour. Adding checked bags are too pricey. If they want to operate like Spirit Airlines, they should reduce their overall prices."
Pros: "schedule availability"
Cons: "Miserable seating. I paid for extra leg room but in my seat 1D THERE WAS LESS LEG ROOM THAN ANYWHERE ELSE ON THE PLANE. FRONTIER LIED ABOUT THE ADVANTAGE OF PAYING EXTRA FOR AN "UPGRADE". i WAS IN PAIN FOR THE ENTIRE FLIGHT. tELL THEIR CEO TO TRY SITTING WHERE I WAS. UNLESS HE IS A LITTLE PERSON HE WILL GET IT AFTER A COUPLE HOURS."
Pros: "Had to cancel due to the mass murder shooting in LAS and Frontier would not give me a full refund. Only a flight credit which I probably won’t be able to use"
Pros: "I would have liked the reasonable fare if it wasn't completely offset by the fees Frontier charges for everything."
Cons: "The reasonable fares are offset by the fees for everything, including seat selection and even carrying on a bag. Several flight attendants were dismissive bordering on rude, as if it was passengers' privilege that they were even on the flight."
Cons: "A little girl was dreaming for no reason and the mother wouldn't do anything. The flight attendants asked if they could do anything for her but she refused. The plane was already packed and I had to deal with a kicking and moving child during the ride and I got sick 45 mins before landing"
Cons: "Sitting in row 2 and having to put my bags five rows behind me."
Pros: "The online price."
Cons: "All of the hidden fees."
Pros: "Crew was awesome!"
Cons: "Had to pay for each of my bags! So much for a cheap flight. I could have flown First class on American for what I just paid"
Pros: "Awful. The ground crew and the plan crew were not in-sinc. The jet way was a least 10 inches below the plane door. The stewards crowd was surley. The plane was late leaving for unknown reasons. The whole passenger group was held up waiting on the two person clean up crew to empty the trash. No one seemed to care about the passengers."
Pros: "The flight was reasonably priced"
Cons: "Seats don't recline, all groups were called to board at the same time creating a long line."
Pros: "boarding was straight forward, the crew professional and polite, they appeared to enjoy what they were doing. Normal bumps going over the foot hills of Colorado. Landed got off."
Cons: "Cost of original ticket was very misleading. Frontier is good if you have no baggage"
Pros: "price."
Cons: "They lost the full planes worth of baggage at the arrival in Denver, we waited over an hour and a half for the luggage, while other flights arrived, got their bags and left. Attendant kept coming over the intercom saying they were looking for the bags from our flight. Once on the plane and the doors shut, passengers were not allowed to move to an empty row, because they said we did not pay for other seats in coach, so had to sit cramped in seats while multiple rows were empty or had only one passenger for the 3 seats."
Cons: "The seats are incredibly uncomfortable, the planes were noisy in a terrifying way and I didn't even get a complimentary snack! I heard other people complaining and swearing they would never fly Frontier again. I was pressed for cash and am grateful for a cheap flight, but next time I'm flying I will spend more for comfort with another airline if I can."
Pros: "the flight leaving las vegas to denver was 2 hours late the flight back left on time"
Cons: "The plane waited for a part that never came, held everyone back on a hot plane, no water is being offer and the worst part is there was a fly lingering around the pale for the whole entire flight"
Pros: "Flight crew was pleasant!"
Cons: "Uncomfortable seats!"
Pros: "The seats didn't recline. The flight was delayed. They lost my bag. I was going for a pool tournament, I was disqualified because I missed beginning of it. Then they lost my pool cue on the way home. They didn't even care about any of my loss. Never again."
Cons: "My flight was delayed and they lost my baggage. I normally wouldn't mind but I missed my pool tournament and they lost my pool cue. They didn't even compensate me for my loss. Never again"
Pros: "Its cheap."
Cons: "The kiosk would not give anyone a boarding pass that did not need to check a bag so we all had to stand in line. All I had was a carry on. There is always something that keeps a Frontier flight from being seamless."
Cons: "Just when you thought airline travel couldn't get worse, Frontier brings you hard seats that don't recline and tray tables about half the size of a sheet of paper. Want a real seat? No problem--pay more. Want what they call a "laptop-friendly" tray table? No problem--pay more. And don't expect to use TSA Pre-check: Frontier doesn't participate. By the time you've paid to bring luggage on your trip--whether checked or carry-on, it costs--you've racked up a cost you could have used to fly a real airline. Pretty soon they'll be charging extra to fly on a plane with wings. And then their website was down all morning when I needed to check in. I used to fly Frontier a lot. Never, never, never, never again."
Pros: "On time polite crew."
Cons: "Had a big guy next to me pouring into my space, just overall cramped."
Pros: "Flight was on time"
Cons: "I got a seat at the back of the plain in the middle of 2 other people and I didn't feel very comfortable but I also didn't want to pay for a better seat ($25-50)"
Cons: "My two flights to San Fransisco (DCA-Denver-SFO) were the bumpiest I've ever been on. I felt nauseous nearly the whole time."
Pros: "The attendants were very capable"
Cons: "They made me check my carry-on charged me $30 for or $40 to carry it on."
Cons: "Couldn't get a glass of water to save my life."
Pros: "Not Much. Miss the old Frontier"
Cons: "Hidden Fees - Charges for luggage, Carry On, Drinks, Snacks, assigned seats, charging for seats that recline. $88.00 round trip fair turned into $200 Surprised they didn't charge to use the restrooms Uncomfortable - worst seats ever Will never fly Frontier again if I don't have too. Sad to see a good airline that has been bought out and ruined."
Cons: "They suck"
Cons: "No reclining seat Charge for carry on No entertainment food very limited and overpriced"
Cons: "0 leg room, pay for food, 0 entertainment. Solid performance again from frontier."
Pros: "Same as above. Same as above"
Cons: "left hour late not weather related just poor planning once arriving were told to leave the terminal we arrived at to retrieve luggage which was wrong so after midnight had to wait about 20 minutes to return to original terminal to retrieve luggage so terrible experience with frontier!!!"
Pros: "Not flying frontier to Las Vegas there are no flights available"
Pros: "Nothing"
Cons: "Late, dirty, surly crew"
Pros: "The Captain did his spiel. Thanked us for choosing Frontier. Then he introduced his flight crew and added: "Since this is Wednesday, they have the day off...so, just sit back, relaxand enjoy your ride to the mile high city. We should be landing on time, Jerry thinks we should be there minutes early.""
Cons: "I sat in row 1...so no under seat storage, but the overhead storage directly above was used by the crew. I had to go 3 compartments back and fight my way back to my seat, the the same after landing."
Cons: "We were given the wrong information for picking up our luggage and had to take a shuttle to Terminal 3 in Vegas. It took 40 min longer than expected at 11:30 pm. Also the flight insurance is totally a waste of money."
Pros: "Crew was friendly and polite."
Cons: "Economy seat was very uncomfortable. I wish that my booking made clear that I would need to pay for a carry on. Fortunately, I paid at the kiosk where is was $40 for a bag instead of at the gate where it was $60."
Pros: "The crew was good"
Cons: "I had to pay baggage fees each way which is ridiculous. I would rather fly Southwest and pay a little more for the ticket than have to pay seperate baggage fees as well as even pay for a bottle of watter. coming back from Las Vegas our plane landed early and it took about 45 minutes to find a gate that we could unload."
Pros: "The plane looked as though it had not been clean. Dirty tissue left on the floor under the seat, my tray was dirty, the toilet was dirty (dry pee on the rim) and the bathroom toilet lid could not be lowered to flush the toilet. All in just a very diappointing ride with a company I use to like to fly with."
COVID-19 information

Safety measures for airlines flying from Colorado to Las Vegas

Airlines flying from Colorado to Las Vegas have enacted additional safety measures and adjusted policies to better accommodate travelers. Policies vary by airline.

Heightened sanitation

Daily cleaning, installation of cabin HEPA filters on flights from Colorado to Las Vegas

Mandatory masks

Masks required on board, masks provided on flights from Colorado to Las Vegas

Social distancing seating

Middle seats unavailable to book on flights from Colorado to Las Vegas

Pre-flight testing

Testing for antibodies, testing for symptoms for flights from Colorado to Las Vegas

Flexible cancellations

Waiving of change fees. Search flexible flights from Colorado to Las Vegas

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Recent round-trip flight deals

6/4Sat
nonstopMultiple Airlines
2h 02mDEN-LAS
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nonstopMultiple Airlines
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$51
6/7Tue
nonstopSpirit Airlines
2h 00mDEN-LAS
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nonstopSpirit Airlines
2h 00mLAS-DEN
$53
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nonstopFrontier
1h 58mDEN-LAS
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nonstopFrontier
2h 01mLAS-DEN
$56
6/6Mon
nonstopSpirit Airlines
2h 00mDEN-LAS
6/8Wed
nonstopSpirit Airlines
2h 00mLAS-DEN
$61
6/8Wed
nonstopSpirit Airlines
2h 00mDEN-LAS
6/11Sat
nonstopSpirit Airlines
2h 00mLAS-DEN
$62
6/7Tue
nonstopMultiple Airlines
1h 58mDEN-LAS
6/7Tue
nonstopMultiple Airlines
2h 02mLAS-DEN
$63
6/6Mon
nonstopFrontier
1h 58mDEN-LAS
6/15Wed
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2h 01mLAS-DEN
$64
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1h 21mGJT-LAS
6/10Fri
nonstopAllegiant Air
1h 23mLAS-GJT
$66
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nonstopMultiple Airlines
2h 02mDEN-LAS
6/8Wed
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2h 00mLAS-DEN
$66
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nonstopMultiple Airlines
2h 01mDEN-LAS
6/8Wed
nonstopMultiple Airlines
2h 00mLAS-DEN
$67
6/4Sat
nonstopFrontier
2h 02mDEN-LAS
6/6Mon
nonstopFrontier
2h 01mLAS-DEN
$68
6/4Sat
nonstopSpirit Airlines
1h 56mDEN-LAS
6/7Tue
nonstopSpirit Airlines
2h 00mLAS-DEN
$69
6/6Mon
nonstopAllegiant Air
1h 21mGJT-LAS
6/10Fri
nonstopAllegiant Air
1h 23mLAS-GJT
$70
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nonstopMultiple Airlines
1h 57mDEN-LAS
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$72
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6/10Fri
nonstopAllegiant Air
1h 23mLAS-GJT
$73
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nonstopSpirit Airlines
1h 56mDEN-LAS
6/7Tue
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2h 00mLAS-DEN
$73
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1h 21mGJT-LAS
6/10Fri
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1h 23mLAS-GJT
$74
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1h 21mGJT-LAS
6/10Fri
nonstopAllegiant Air
1h 23mLAS-GJT
$75
9/21Wed
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4h 03mCOS-LAS
9/24Sat
1 stopUnited Airlines
3h 29mLAS-COS
$169

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$31
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$33
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$79
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Flights to Las Vegas

Destination:

Las Vegas (LAS)United States

Return flight deals:

Las Vegas - Colorado

Cabin classes:

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$884
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$61

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