Find cheap flights from Colorado to the United States

Find cheap flights from Colorado to the United States

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Round-trip
Economy
Boston (BOS)
United States
Tue 7/27
Tue 8/3
Any month
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Good to know

Low season

AugustBest time to beat the crowds with an average 5% drop in price.

High season

DecemberMost popular time to fly with an average 18% increase in price.

Average price round-trip

$230(avg. price over the last 2 weeks)

Good deal round-trip

$61or less

Good deal one-way

$44or less

FAQs for booking flights from Colorado to the United States

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Top 5 airlines serving from Colorado to the United States

Scores according to KAYAK customer reviews

8.3
Alaska Airlines
Overall score based on 29,499 reviews
8.5
Boarding
8.3
Comfort
8.8
Crew
7.9
Entertainment
7.9
Food
Airline reviews

Cons: "Boarding got very weird. Having B, C and D boarding groups, all of which sound the same over a loudspeaker, made for some confusion."

Pros: "Everything goes so smoothly.friendly crew. Good coffee."
Cons: "Nothing. Tight squeeze."

Pros: "Seats were comfortable and did not feel confining. Takeoff and landing were very smooth."
Cons: "Having a male flight attendant wearing makeup was off-putting. A gluten free option for snacks would be nice."

Pros: "Employees were friendly and helpful"
Cons: "Every single flight left extremely late which meant I was running through the airport to catch my connections."

Cons: "Too much time to board Seated away from my travel partner"

Pros: "Alaska airlines is terrific!!"

Pros: "Poutin"
Cons: "Higher bagge fees and missed the bus"

Pros: "Staff was friendly. Very apologetic about the delay. Offered accommodations that were within reason."
Cons: "There was a delay. Which is understandable and not the airlines fault, but I feel like there should be a more specific boarding process and exit process, especially since there were so many people near missing their connecting flights. Understandbly there is only so much an airline can do, but it can really frustrating when the staff says “seats #-# board and everyone rushes on like a heard of cattle regardless of number. Similar exit experience."

Cons: "I had only 40 minutes to get to my connecting flight. Then the plane was 15 minutes late. They wouldn't switch me to a seat that was open closer to front of plane and my bag was lost w important things in it that I need for this evenings show. I'm a full time musician."

Pros: "I checked my baggage with ease.The whole trip was without any inconvience. My daughter in CO made my reservations both ways thru you. I appreciated the great $fare. We will use you again . Thank You, Merry Christmas!"

Cons: "I dint know i needed a chinese visa to travel to shanhai, My flight began on denver then seattle and from seattle i wasnt able to fly to china. I received no help at all, all they did was cancel my booking not received any kind of refund and i got stuck in seattle, i had to buy new tickets to go back to denver after losing my flights and not getting a dime back, this is unacceptable!"

Pros: "On time"

Cons: "Why does it coast so much for a beer or a glass of wine??? Why is the wine glass so small?"

Pros: "Comfortable. Friendly staff."

Pros: "Did not go to seattle"

Pros: "The crew was very good."

Pros: "In flight texting for free, leg room, food"
Cons: "Nothing"

Pros: "Friendly staff"

Pros: "The crew was very nice"
Cons: "There wasn't any good offered without paying"

Pros: "Friendly people."

Pros: "The flight attendants were awesome! Very helpful and attentive.`"
Cons: "I was told that I would have internet onboard the flight. I was very much looking forward to that. When time came to connect, all I got was inflight onboard local network. No texting, no watching of football games. I would not complain had I been told up front there was no internet access."

Pros: "Seat room"

Cons: "Gate at Seattle airport was crowded. Not airlines' fault but it was tough to navigate Seattle airport."

Pros: "Slept for the majority of the flight, and no issues. Probably 1-2 inches more legroom than I normally get on other airlines"
Cons: "Waited in line for like 20 mins to just print out my boarding pass."

Pros: "We took off and we landed - nothing broke. What else is needed ?"

Pros: "Very friendly crew that understood customer service and safety"
Cons: "On a long flight would like to have known of option to purpurchase hot meal"

Pros: "Polite staff, efficient, all around great."

Pros: "Love how fast we all boarded and were situated."
Cons: "Hanging out for 30 minutes in the plane."

Pros: "Alaska Airlines treats their customers as kings and queens and not a burden like other airlines. My flights were on time, comfortable, peaceful, and most of all welcoming."
Cons: "Nothing at this time."

Pros: "Nothing"

Cons: "Delays layover very poor"

Cons: "I paid for a window seat and the seat next to it. I ended up with two aisle seats. This meant my grand-daughter and I were not sitting next to each other. NOT ACCEPTABLE"

Pros: "We got in early and everyone was friendly."

Pros: "No troubles along the way"
Cons: "No complaints/suggestions"

Pros: "Fruit and cheese platter was perfect."
Cons: "Felt very cramped. Kept getting bumped by passenger next to me and by the stewardess every single time she went up and down the isle."

Pros: "On board service was terrific."
Cons: "Flight was over an hour delayed and then there was no gate available upon arrival!"

Pros: "The overall experience was exactly what anyone would expect."
Cons: "The overall experience was exactly what anyone would expect."

Pros: "It was clean, crew was friendly and the flight was easy."
Cons: "It was a shortish flight. There wasn't really any entertainment options."

Pros: "I had a connecting flight in Seattle and the gates were conveniently right next to each other which was great. The crew was awesome very friendly & helpful!"
Cons: "Just the oldness of the upolstery."

Cons: "Boarded late, waited a long time before take off, nearly an hour."

Pros: "The crew was really friendly and the seats were comfortable with more legroom in coach than most other airlines. I did not partake of food or entertainment, so gave one star because there was no box for "n/a""
Cons: "Arriving 20 minutes late to Seattle, which was the fault of the airport, not Alaska Airlines, but it still affects my rating of the trip"

Pros: "This is my first time flying Alaska. I was really impressed when one of the flight attendants offered to hang up my sport coat, even though I was sitting in coach. She even brought it to me at the end of the flight. Service was excellent, the plane was newer and very comfortable. I am a pretty dedicated fan of another airline, but after this experience I will certainly consider Alaska for future flights."
Cons: "NA"

Pros: "Great service. Crew was awesome"

Pros: "We left early and arrived early."
Cons: "Vents were weak. Way too warm."

Pros: "Service was good. Not overbooked flight"

Pros: "This is by far the most comfortable Airline I've ever flown! I'm guessing at least six more inches between seats and I could stretch out my legs!"

Pros: "The pilot was very friendly and made sure to point out landmarks as we flew over."
Cons: "The boarding crew in DIA was less than friendly, forcing people to gate-check their carry-ons. She used the claim that the flight was overbooked and 20 people needed to check their bags, then threatened to randomly take them. Meanwhile, 60% of passengers were boarding without roller bags. When I boarded the plane, which was almost full, at least half the overhead bins were empty. I had already gate checked my bag to avoid a confrontation with this pushy lady. Ridiculous!"

Pros: "friendly and helpful staff, good flight and great communication from the captain."
Cons: "The bathroom situation when drinks are being served."

Pros: "The cheese plate was excellent. Sat in exit row seating so plenty of room."
Cons: "Couldn't check my bags early even though all of the news outlets said to arrive early due to long lines at TSA."

Pros: "Crew were friendlier than many other airlines"

Pros: "Fast!"

Pros: "It was super"

Pros: "Good"

Pros: "I didn't fly from Minneapolis to Los Angeles"
Cons: "I didn't fly from Minneapolis to Los Angeles"

Cons: "Delayed 4 hours"

Pros: "Everything! Thank you"
Cons: "Nothing. Thanks"

Pros: "Flight left on time and landed on time"

Pros: "Crews were friendly"

Pros: "The service, on time, employees very nice."

Pros: "awesome"

Pros: "All aspects"
Cons: "Nothing"

Pros: "Delta always does a superior job - domestically and internationally!"

Cons: "Have rhe right to carry at least one luggage per person at no cost. Besides carry on and personal item. Tickets prices and luggage costs are extremely expensive."

Cons: "Everything was perfect!"

Cons: "N-S"

Pros: "Everything went smoothly. Baggage was at carousel before we were, a first."
Cons: "Everything was fine."

Pros: "Nothing"
Cons: "I bought a ticket thinking i bought it through kayak but I actually bought a ticket through a third party in India. Where no one spoke good English. I called the agency to find out if I needed a Visa for my visit to Australia and the told me no. So when I showed up to the airport I didn’t have the right documents and I MISSED MY FLIGHT. Also the wouldn’t just change my flight and charge me the change flight fee. They cancelled my flight entirely and made me buy a whole new ticket!!! Worst flight experience I’ve ever had and this is not my first time flying to Australia or out of country."

Pros: "Operated by Delta so great!"

Pros: "."

Pros: "Flew us safely home."
Cons: "We waiting on the runway for over a long period."

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: "Check in Denver super helpful Gate staff hustled to turn around flight Flight crew excellent"
Cons: "Flight delayed, almost missed international connections"

Pros: "Excellent Service."

Pros: "The fact that there was a screen for movie selections and a charging port for my phone and the flight attendants were super nice"

Pros: "Delta is great"

Pros: "on time"

Cons: "The airplane was freezing cold. I had on a sweater and jacket and was unbearably cold. The entire plane was miserable. There weren’t any blankets either...this is not the"

Pros: "ditto above"
Cons: "ditto above"

Cons: "No drink or snack service. No trash pick up. No option to purchase or rent headphones"

Cons: "waiting on the tarmac for 40 minutes"

Pros: "Newer plane with movies."
Cons: "Airlines pack you on so tight."

Pros: "Over cramped No Space for carry on slow service"
Cons: "Over cramped No Space for carry on slow service"

Pros: "Friendly people and clean plane"
Cons: "They lost my luggage, I hope it shows up shortly"

Cons: "Condition of the airplane"

Pros: "Sitting in middle isle, just get elbowed a lot."
Cons: "Nothing"

Pros: "All I need to say."

Cons: "Late and missed my international connection"

Pros: "I didn't like anything because the fly leat 3 hours"

Pros: "Unlimited snacks and drinks..."
Cons: "The mediocre upgrade."

Pros: "Smooth ride. Delta got everything right from takeoff to landing."

Pros: "Our stewardess in the economy cabin was probably one of the best we have ever encountered. She was very courteous and personable."

Pros: "On time"

Cons: "No free meals."

Pros: "Service"

Pros: "They got us from A to B without any problems."
Cons: "Efficient to the point of robotic."

Cons: "Service"

Pros: "Nice staff"
Cons: "Old plane especially in first, no TV s"

Pros: "Delta is one of the best airlines I've flown with. Staff is very helpful, and customer service and amenities are tip notch."

Pros: "Excellent service"
Cons: "Plane was a bit old"

Pros: "Crew was nice"
Cons: "Lots of empty seats... during covid/social distancing there should only be 2 ppl in a row especially if there is room...it was crowded and not consistent with signs posted saying stay 6 ft apart"

Pros: "Nothing."
Cons: "Everything"

Pros: "We didn’t crash and die. That’s the only positive."
Cons: "Before we boarded I listened to a couple described how they always went ahead in line at boarding because no one ever stopped them. They described how they waited until group 3 was called and then went right through. While we were waiting, we watched them do it again. If you need to cram people into tiny spaces to be profitable, then you cannot allow them to make it worse by putting back their seats. I spent 90 minutes with a seat back jammed into my chest. We were ignored when handing out snacks, probably because we were invisible behind the seats pushed in our faces. It was one of the most miserable flights I’ve experienced."

Pros: "Nothing"
Cons: "Had to change our plans, and AA wouldn't give us a refund. We never got on the plane but had to pay for the tickets anyway. I'll never fly AA again."

Pros: "Everything was excellent"

Pros: "Comfy seat, great entertainment options"

Pros: "We were allowed to board early with my father, who is disabled."
Cons: "Denver airport was a nightmare with my disabled father. We were given a “wheelchair” but no escort through a nightmarish security scene. Airport is terribly designed, lacking clear signage and navigation. TSA was a disaster and no one seemed remotely concerned about my father’s comfort or needs."

Cons: "The flight was delayed which caused us to miss our flight in London our family was delayed for 12 hours"

Pros: "seat was basic. prefer having tv screens in the seatbacks as opposed to using my tiny phone as a viewing screen."
Cons: "prefer having tv screens in the seatbacks as opposed to using my tiny phone as a viewing screen. only food available besides pretzel was pay food."

Pros: "The plane was super comfortable"
Cons: "Long check-in lines in Denver - there were two sky caps outside who had no line which allowed me to reach my gate in time. Otherwise I may have missed my flight"

Cons: "Try to be on time!"

Cons: "If we had access to the WiFi to watch shows earlier like United does, that would be nice."

Cons: "We are delayed 7.5 hours dues to mechanical issues with our plane and told we would have to wait or book another flight the following day. American Airlines sucks!!!!"

Cons: "The service and courtesy of the staff wasn’t great."

Pros: "The flight was on time."
Cons: "The seats are absolutely horrible. I feel crammed like a sardine in the plane. Seriously, can we adjust the seat widths and distance to the seat in front and make them a couple inches bigger?"

Cons: "Rude staff, not willing to help"

Pros: "The crew was very friendly and accomodating."

Cons: "Poor they lost my luggage. They did not allowed me to take my suitcas whit me because the plan was too small. I never travel again whit amercan airlines"

Pros: "The jet"

Cons: "No advanced seat assignments unless we paid $100 per person?! Recently flew Delta on same equipment (A321). Delta had in-seat entertainment & adjustable head rest"

Cons: "Waited on the tarmac for over an hour before departure with very little explanation."

Cons: "There was no entertainment at all, and pretzels are gross"

Pros: "American"

Cons: "Two hour delay out of Denver, no crew."

Pros: "There was nothing to like about the way this sudden last minute cancellation was handled."
Cons: "I expected at least an offer of some kind of compensation for the inconvenience. it didn’t and hasn’t happened thus far."

Pros: "Everything went smoothly"

Cons: "Breakfast - lots of sugary items"

Pros: "We were rerouted through Philadelphia."

Pros: "Great service, friendly staff. Plenty of in-flight entertainment options"
Cons: "N/A"

Pros: "Free in-flight entertainment. Like that in-flight entertainment is available on users device, rather than screens in headrests. Staff were courteous and friendly."
Cons: "Flight delayed d/t computer glitches and problems in NC. Once we eventually boarded, we were forced to check our carryon luggage d/t lack of space."

Pros: "Good is that they sent you to Finnair to correct AA created break in service...why would they pay for it? AA is just an operator per itinerary! Why would you care if ppl get help with connections!"
Cons: "Checked in online on Finnair and automatically for the second connecting flight...and not the first -AA. So, had to check-in again for the first flight at the terminal. Board passes were printed 2 out of 3 by AA and both had errors - wrong gate for the first flight and no boarding info for the second connecting flight - just blank! AA did not provide connecting info until I found an unoccupied employee at the terminal and customer service lines were about 20 people in 2 locations I went to. The connecting info should be in the itinerary they said at customer service...nope, it was not there either!"

Pros: "Nothing"
Cons: "Broken plane, re-route and conflicting inaccurate email updates."

Pros: "Great service."

Pros: "The helpful steward"
Cons: "The bumpy ride"

Pros: "fairly comfortable, crew was helpful"
Cons: "Having to use my phone for entertainment, with no place to plug it in"

Cons: "I'm not sure where the problem was - whether with AA or Royal Jordanian, but my luggage did not make it to Amman with me. In fact, there was a whole group of passengers traveling on American from different US cities, switching to RJ in Chicago, whose luggage did not come on the flight to Amman. My advice: be sure to pack enough for a couple of days in your carryon - and don't accept an offer to check your carryon to its final destination!"

Pros: "Comfortable seats, good legroom."
Cons: "Not enough coffee for breakfast."

Cons: "Airbus seems to have completely minimalized all legroom for persons over 6 feet."

Pros: "Great service!"

Cons: "Staff seemed tired with some minor conflicts between them at Toronto gate"

Cons: "This was a BA flight on an American Airlines plane. Very small crowded and uncomfortable. My husband is 6'2" and barely fit in the seat."

Pros: "The crew was awesome."
Cons: "You guys lost our luggage!"

Pros: "All good, except poor prep on food"
Cons: "As above"

Pros: "Great crew with an attention to details!"
Cons: "40 min late and a bumpy ride the whole time but good flight"

Pros: "Very nice staff"
Cons: "Nothing"

Pros: "Quick and easy boarding"
Cons: "Uncomfortable seats"

Pros: "Everything ran smoothly despite turbulence and bad weather, thanks to the crew."
Cons: "Seating is even more cramped than I'm used to, and everything outside of a drink and a biscuit is extra money."

Pros: "Nothing"
Cons: "Everything"

Pros: "There was nothing too bad other than I wasn't able to check in online bc our first leg of the flight was operated by American Airlines. But there wasn't anything that really stood out that would make me want to fly them again other than it was the best price."

Pros: "The crew was very helpful at each stop even though they weren't responsible for the disasters."
Cons: "Initially we thought we were flying with British Airways. We then had to do some digging to realize it was all out of American Airlines. Then we couldn't get proper boarding passes and luggage tags until one of the crew members spent a significant amount of time untangling each leg of our trip so they were in the proper order. We got delayed by 4 hours in Chicago and missed our connection in Manchester. We had another 5 hour wait there. By the time we got to Dublin, our bags didn't also arrive. After almost 24 hours of travel, we arrived but without all of our stuff."

Pros: "Good job"

Pros: "Good job"

Pros: "Great"
Cons: "E-175 is very comfortable"

Cons: "Glad we were able to watch a movie"

Pros: "Read above"

Pros: "They were effective at boarding"
Cons: "My display monitor didn’t work"

Cons: "Delayed landing and takeoff because of unprepared crews"

Pros: "It was on time"
Cons: "Snacks from Lax to Denver"

Pros: "Excellent landing"

Pros: "On time and great professional staff throughout"

Pros: "Free WiFi with movies"

Pros: "Smooth landing!"
Cons: "Late 30”"

Pros: "No surprises, boarding, friendly plane staff, carry on so didn’t have to worry about baggage issues , on-time"
Cons: "Pilots flying: the plane would turn or ascend/descend in such a way that I felt that I was going to pass out. I was not intoxlcated nor did i experience it on my previous flight nor the majority of this flight unless maneuvering was occurring. Also, again, worthless wifi"

Pros: "Selection of films and TV"
Cons: "Late boarding, but no apology. Drinks service, but no snacks"

Pros: "Food was great"

Cons: "I was very cold!"

Pros: "The passengers I sat next to they were very nice people"
Cons: "No leg room and the crazy amount of turbulence we encountered throughout the trip."

Pros: "Nothing unusual"
Cons: "Nothing unusual"

Pros: "Everything ran as expected"
Cons: "Nothing"

Pros: "N/a"
Cons: "N/a"

Cons: "I missed my flight due to a nonsense delay from Charlotte. Arrived at the gate 1 minute after scheduled take off and the plane was gone. Not even an attempt to waiting as I ran, 5 months pregnant, through the airport. I was rebooked to arrive in Las Vegas at midnight. 12 hours after the original time. I bought a flight from Southwest. I will never fly united again"

Pros: "Departed early and arrived early. Boarding went quickly. Flight crew was friendly and efficient."
Cons: "Strong winds made for a bouncy final approach at destination."

Pros: "Let us sleep without disturbing!"

Cons: "On board service!!!!!"

Cons: "Very bumpy ride....but I realize that can't be helped"

Pros: "Not bad overall. I was exhausted at one point and passed out in my chair. I would have missed my flight if the gentleman boarding people hadn't noticed and woke me up to ask if I should be on the flight. I was out so deeply that I hadn't heard any announcements. There wasn't any food on the three flights but a cookie waffle thing and that was all I had during the 13ish hours I was on planes. The staff was super awesome and nice. Space wasn't any different than other planes, but tight on the first flight. I got lucky on the last two."
Cons: "I was starving and dehydrated."

Pros: "The staff were proficient and friendly. I greatly appreciate that the first checked bag is free!!! Main reason that I choose United is because of baggage allowance. Thank you"

Pros: "Amazing plane with great features! Incredible staff!"
Cons: "Bathrooms should be bigger"

Cons: "Delayed and got downgraded"

Cons: "Nothing"

Pros: "The kindness of the staff."
Cons: "Having to go back to Denver because of a storm-in Omaha."

Cons: "I was not able to choose my seat for this flight. The person on my left kept stretching out invading my personal space. Was extremely cramped!!!"

Cons: "Seats are not comfortable and no leg room"

Pros: "A everything was fine other than..."

Pros: "Love the free tv/movies with the United App. That was great!"

Pros: "Everything is usually great with United. I have rarely had an issue. If I have a choice, I fly with you."
Cons: "Nothing. You all were perfect again!"

Pros: "Enjoyed the new legroom"
Cons: "No snacks"

Cons: "Delayed 3 times. United is known for delays, everyone jokes about United delays!"

Cons: "Their plane broke down, no assigned gates ,"

Pros: "Everything went as planned"

Cons: "Rude all way around. One person was left at airport for 6hr's for wedding party"

Pros: "Plane was fine, but very cramped."
Cons: "Seat was very cramped. Overhead bins are too small and had to gate check my carryon."

Pros: "nothing"
Cons: "t was delayed without informing me i stay in airport 6hours"

Pros: "Met a cute girl!"

Pros: "No issues. Quick and painless."

Pros: "Small plane completely booked."

Pros: "Smooth with courteous staff"

Pros: "I recomend it..."
Cons: "No complementary food!!!"

Pros: "Everything was very good!!!"

Pros: "NA"
Cons: "NA"

Pros: "Very good"
Cons: "Hope is on time not delay 1 hour that’s all"

Pros: "Fast and comfortable flight."
Cons: "Seats on the airplane could have been more comfortable."

Pros: "Not much on this flight to like."
Cons: "Crew to have better attitude."

Pros: "Not one part."
Cons: "They plane broke down and I understand that...frontier employees being rude to us when we asked for updates I do not. There were loud and obnoxious people on the flight that the flight attendants did nothing about. Overall terrible flight."

Pros: "Modern planes. Good on board crew."
Cons: "2.5 hour delay, no explanation why."

Pros: "I got the same seats with my kids"
Cons: "That I missed my flight back to Denver and had to pay for a new flight for the next day"

Cons: "Checking my luggage and then re-checking my luggage !!! Very annoying and very inconvenient. This is not passenger / customer friendly !!!"

Pros: "Squished accommodations"
Cons: "Turbulence"

Cons: "Late 2.5 hrs"

Pros: "Pilot was great, one of the smoothest flights and landing we've ever had ."

Cons: "Everything was good until the last flight from Denver to Las Vegas. They let us into the bridge but did not let is into the plane for a while because they just finished cleaning it and was waiting for maintenance to fix a broken chair, which made us stand and wait on the bridge. They should've just waited to let us in until the plane was ready instead of stocking us into the bridge.Additionally, as I was leaving the plane the one of the crew member was arguing with a customer, which could've been handle better."

Pros: "The crew were great! Easy booking and check in."
Cons: "We were stuck on runway because of mechanical problems for 45 minutes and would have rather not have boarded until things were fixed. I however appreciate being safe, and didn't mind waiting, just would have preferred to not be stuck for 45 minutes on the plane. Also, I am not a fan of your carry on luggage and seat fees. After adding all the fees up with the cost of the ticket, it might be cheaper for me to fly another airlines in the future."

Pros: "Over all very good!"

Pros: "Crew was very friendly and we arrived early."

Pros: "Flight was short, fast and on time"
Cons: "It took a long time to deboard after landing. Too many surprise charges i.e. - (seat selection, carry-on)...not a good feeling!"

Cons: "Seat confusion, pay for every thing else aside of the flight itself"

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: "Amazing service given and arrived quicker then expected."

Pros: "Helpful crew. I opted to not pay for my seat selection. I ended up 2 rows from the back and I get travel sick. I asked if it was possible to move into an empty seat further up. Before take off the flight attendant came and got me and moved me to the middle of the plane. I was super grateful and impressed tbat they remembered and helped me out."
Cons: "We were delayed 2 hours taking off. Our already later arrival at 11pm was not 1 am. Kind of a drag. There was weather in the area so not really their fault."

Pros: "Boarding was quick and easy"
Cons: "Delayed grting back.. sitting waiting for a gate to open up"

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: "I haven' flown on Frontier for a while and I was shocked at the lack of comfort and service. The seats were like sitting in a lawn chair. The lavatory are was like squeezing into a small broom closet, I am tall and slender. The leg room was a joke too. I will give my business elswhere."

Pros: "The newer plane"
Cons: "The delays, employees that didn't seem to care. Charging for everything."

Pros: "Nothing. Horrific airline and flight."
Cons: "Terrible!"

Pros: "Great service"

Pros: "the flight leaving las vegas to denver was 2 hours late the flight back left on time"

Pros: "Flight crew was pleasant!"
Cons: "Uncomfortable seats!"

Cons: "I don't like Airbus airplanes. I think they are cheep airplanes. You got ok because it got me here"

Cons: "When we showed up for our flight on Aug 28th the lady at check-in said we didn't have a seat and printed out a piece of paper with rules and guidelines on it she then handed me the paper and told me to check my bags in and go to the boarding gate to get more information on why I didn't have a seat, I repeatedly asked her why do I have to check my bags go through security go to the boarding gate if I don't have a seat she continued to tell me that's the procedure and they will give me the information, she was very rude so I continued to follow her rules I went to the boarding gate swear they told me I did not have a seat because the flights are oversold they told me they were going to give me a flight for the next morning and to come back in an hour and they would get it all situated so I came back in an hour they gave me my information for the flight the next morning but then they couldn't get my luggage back because they said it was too late to get it off of the plane where is I'm watching right out the window then load the luggage on the plane, I then proceeded to talk to a manager the manager said that she would have our luggage flown back to Las Vegas and sent to our hotel at 8:30 p.m. that same night August 28th and that never happened, I even called Frontiers baggage claim at 1:30 asking if they knew where my luggage was they said they had no idea and that they would send it out in the morning to my hotel I told her that's not necessary as I will be flying to Denver where my luggage should be in the morning she kept telling me she already was going to ship it to the hotel and couldn't understand why I didn't want it shipped to the hotel even though it was a pretty simple answer so she just continue to laugh at me and hang up, we also didn't get any compensation for an overbooked flight I would have to say that it's pretty horrible experience and knowingly that when I do fly it's usually with Frontier but all that will change"

Pros: "The flight crew on plane was great."
Cons: "On my flight to Denver, was never mentioned on anything about paying for my carry on. But on the way back to Las Vegas. They stopped us and was very rude about having to pay. Using the "they should have charged you the first time" I think its crazy to be charged for a carry on, if they charged me one way and not the other then i feel someone was not doing their job. But it was how rude the lady manager was when I also only had cash on me. They wanted to charge me an extra $5 to go do a pre paid card. this was 20 mins before flight left. They must get on the same paid either charge both ways or no way. especially $60 per bag"

Cons: "No in flight entertainment. Dislike being charged for bags."

Cons: "Haven't even gotten to Vegas!!!"

Pros: "Hard to come up with anything honestly."
Cons: "Service at the gate was unprofessional. Customer service rep was arguing with crew members and pilot. A family of five were all separated throughout the plane and asked if there was anyway they could sit together. CS rep just shook her head and said no. Ultimately I offered up the seat I paid for so the mom could be closer to her kids and ended up sitting in the back of the plane in a completely empty row. Could the rep not have looked it up and seen there was an empty row and made accommodations for this family?? I shouldn't have to be the one looking out for YOUR customers. They don't pay my salary...they pay yours."

Cons: "That when I got my luggage back it was super damaged. I have put in a complaint to the airline about it."

Cons: "These were the most uncomfortable seats I have ever been in.."

Pros: "Had 1 carry on which I paid for at airport You had no one to help when automated equipment failed Consequently was charged twice for 1 carry on!"

Pros: "Got home."
Cons: "seating, paying for everything including luggage and no luggage when arrived."

Pros: "Staff was great."
Cons: "Are you kidding me with those seats? Worst seats in the industry. Carry on charge went up considerably. Beware."

Cons: "Connecting flight missed it by 10 minutes."

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"

Pros: "I hate the nickel and diming of frontier airlines."

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"

Pros: "Not flying frontier to Las Vegas there are no flights available"

Read more about Alaska Airlines
COVID-19 information

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Airlines flying from Colorado 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

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