Find cheap flights from North America to Colorado

Find cheap flights from North America to Colorado

Round-trip
Economy
Boston (BOS)
Colorado
Tue 1/26
Tue 2/2
Any month
Compare vs. KAYAK |
Search hundreds of travel sites at once for deals on flights to Colorado

Good to know

Low season

August Best time to beat the crowds with an average 6% drop in price.

High season

December Most popular time to fly with an average 19% increase in price.

Average price round-trip

$482 (avg. price over the last 2 weeks)

Good deal round-trip

$85 or less

Good deal one-way

$57 or less

FAQs for booking flights from North America to Colorado

Which airlines have a flexible cancellation policy for flights from North America to Colorado due to COVID-19?

Which airlines apply social distancing measures on flights from North America to Colorado due to COVID-19?

How does KAYAK find such low prices on flights from North America to Colorado?

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from North America to Colorado?

What is the Hacker Fare option on flights from North America to Colorado?

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from North America to Colorado?

Top 4 airlines serving from North America to Colorado

Scores according to KAYAK customer reviews

7.7
Sun Country Air
Overall score based on 9,097 reviews
8.1
Boarding
7.6
Comfort
8.4
Crew
6.8
Entertainment
7.0
Food
Airline reviews

Cons: "My seat was hard and worn out."

Cons: "More room!"

Pros: "I liked the crew and the fact that I could reserve a seat. I also like that they use terminal A in the DEN airport and terminal 2 at MSP."
Cons: "The legroom was none existent, my seat was hard as rock, and it did not recline. Also, aisle seats have smaller under seat space than the other seats."

Pros: "No food nor entertainment, thus low ratings in those areas. You could buy snacks but I brought a granola bar to go with complimentary coffee, which was good. Hated paying extra for checked bag and seat reservations. Added $58 to fare but it was cheap."
Cons: "On time."

Pros: "The plane was actually a bit early in leaving which was nice."
Cons: "Could see baggage handlers throwing items on the conveyer belt. Always an issue to me. Like most flights these days, the seats were cramped but not as bad as others."

Pros: "Mediocrity is really the aim of an airline this tier, correct?"
Cons: "The hour delay, on top of an already 3-hour layover, in a terminal that wasn't even connected to the rest of the airport. The least you could do in a situation like this offer complimentary snacks to make up for it."

Pros: "Lots of room and I had an exit row. The staff was friendly."

Pros: "Everything ran smoothly"

Pros: "Every thing"
Cons: "Don’t know yet"

Cons: "Flight Attendant skipped our row when offering drinks. No wifi, no entertainment, no snacks. Paid $25 to check one small bag."

Pros: "leg space OK"
Cons: "we were moved to a different gate for boarding. Then the flight ahead of ours had mechanical problems and we were informed of a 1 hour delay. Then we were moved back to our original gate. There were some elderly folks who were quite confused and other passengers had to help them understand the changes."

Pros: "Friendliness, clean aircrafts, leather seats, larger seats, tray tables, on time, willingness of ticketing agents to move your seat"
Cons: "No snacks (free), must pay for a seat"

Pros: "As to be expected, the cabin was crowded. The flight attendants were great and the service superb."
Cons: "There was a three hour delay, perhaps due to weather. The late plane arrived, as expected, at 1 pm, with a departure time of 1:40 pm. Including a needed ten minute de-icing procedure, we actually took-off at 2:30 pm. I never found out what caused the three hour delay."

Pros: "friendly fast and efficient!"
Cons: "Sitting in the back of the plane!"

Pros: "Friendly attendants and an on time departure. Flying terminal 2 in Minneapolis is easy and much less crowded."

Cons: "It was too cold."

Cons: "Flight was an hour late. Unprofessional staff."

Cons: "They wouldn't let me on the plane. See about"

Pros: "Direct flight at a great price."

Pros: "Always a pleasure to fly Sun Country"

Cons: "I was one of the last ones to check in on a flight I had already purchased a ticket for in economy seats but had to pay $15 extra at check in for an economy seat. Paying extra should be if I want to upgrade a seat and not for a seat in an area that I already paid for. This was definitely not an upgraded seat. I will avoid flying Sun Country in the future."

Pros: "2nd leg of flight... Again, Everything was great, no complaints. The roomy, leather seats made the 21/2 hr flight easy. The crew was very respectful and professional. The way flying is suppose to be. Thank you. John"
Cons: "No complaints."

Pros: "I always have a good experience on Sun Country."

Cons: "small seats and when we go into the air there were plenty of seats to spread out. The crew should have announced that it would okay to disberse."

Pros: "Great service amd friendly"

Pros: "Flight went on time, the price was great, Appreciated the complimentary beverage, The crew was nice"

Pros: "Quick smooth flight with professional service, would recommend."
Cons: "It was impossible to find a dog carrier that was up to your standards. I ended up settling for something last minute. It would be nice if pet standards were more clearly identifiable."

Pros: "courteous staff"
Cons: "Delayed due to weather. Not much to do there."

Pros: "Great price Easy reservation to make Well organized at the gate and with boarding On time"
Cons: "I did not find that I had any input as to seat selection"

Pros: "Every thing"

Pros: "Flight was better then expected."

Pros: "Friendly staff. Helpful. Accommodating."

Pros: "It was good"
Cons: "My Trip was good"

Pros: "The smooth boarding and friendly flight attendants"

Pros: "would absolutely fly Sun Country again! Clean plane. on time. last minute flight was an awesome price!!"

Pros: "Easy check-in at ticketing."

Pros: "Thank you, SunCountry. This was our first time on your airline and I could not have been more impressed. The process was smooth, simple and extremely timely. Also appreciate the allowance of a carry on at no extra cost. The staff was pleasant and kind. We really enjoyed our experience."

Cons: "Didn't get to Denver via Sun Country, please see previous."

Pros: "Short and smooth"

Cons: "Because we booked through a third party , kayak, we could not pre-check in online"

Cons: "We never got off the ground because of mechanical problem. I was sent back to the terminal where I waited in line for 2.5 hours. Finally SC put me on a different airline on a flight that left 12 hours later. No compensation for food or other costs incurred as a result of this problem. I understand that things don't always go right but it is important to provide good customer service on those occasions. SC failed me."

Pros: "The aircraft was convenient"
Cons: "The flight was delayed for an hour and then the bagging claim took too much time so I missed my bus."

Pros: "Everything about the experience was good. The airplane was comfortable and clean."
Cons: "Nothing"

Cons: "It was freezing!"

Pros: "As a tall person I was very pleased that there was enough leg room for my legs to be comfortable. Not only that but the flight left even before it was suppose to, which is also very nice."
Cons: "The food wasn't free, but that was expected."

Pros: "The staff was exceptionally friendly on this flight."
Cons: "Well I am a big guy so not much room but that is with most airlines"

Pros: "Everything was expeditious, staff was courteous and the flight went smooth. Thanks Sun Country Air!"

Pros: "the crew"
Cons: "no food"

Pros: "So friendly"

Cons: "There are too many announcements on the screen before you can start watching entertainment. It takes about 15 minutes."

Pros: "I loved everything! Best flight experience in a long time. Really easy, on time, great window seat, thank you"
Cons: "Me probably. You guys were excellent!"

Pros: "Horrible staff at LAX boarding gate. Been treated horribly by incompetent and rude AA staff."
Cons: "Hire only friendly people for this type of job. Hire people knows basic math. Train their well on how to communicate with people."

Pros: "Crew was good, flight was on time"
Cons: "Old plane, no TVs"

Pros: "Crew was nice"
Cons: "Not enough leg room. They did a gate change and I almost missed the flight because nothing was announced and when I looked at my phone app it had the previous gate."

Cons: "Didn't like the two hour delay, especially when I was notified only a half hour before boarding! This seems to be a normal thing for American Airlines."

Pros: "Seats were too tight and too close together."

Cons: "The gates closed early and I missed this flight! Horrible service, never flying American again."

Cons: "Everything. Had to sleep overnight in airport and was late coming home."

Cons: "No tvs!!"

Pros: "Customer service was excellent. Comfort and other services were among the best I've experienced ever flying."

Cons: ""Parked" on tarmac for 25 minutes waiting to leave LAX. Arrived half an hour late"

Pros: "The AC was set at the right temperature, not too cold, not too hot, just perfect! We got to the destination sooner than expected!"
Cons: "Pay to seat next to my husband, our seats were separate before check-in. Not happy about this."

Pros: "thay we didn't crash"
Cons: "1. To didn't work 2. Give us pillows"

Pros: "Ss"
Cons: "Sd"

Pros: "Entertainment comfort crew food fligjt"
Cons: "Not 1 thing"

Cons: "This flight transfer was totally ridiculous, and required me to exit security, take a bus, get through security again, take another bus, and then wait in a crappy gate with one single terrible food option. Whoever thinks this is a reasonable transfer ought to be subjected to it themselves before booking it for others."

Cons: "It was cancelled"

Pros: "N/A"
Cons: "Missed this connection"

Pros: "Comfortable first class seats for a regional airline, although no food or entertainment. Flight attendants were great, very friendly and they checked up on us often. On time departure and early arrival. American Airlines has always been great for me. Will be back"
Cons: "No food in first class, but it was only a 2 hr flight on a regional"

Pros: "Boarding was quick and easy, no problems or hassles. Seat reclined and was reasonably comfortable. Left early, arrived even earlier."
Cons: "Crew was more robotic than human, which is bexoming a trend on AA. No smiles, no acknowledgment, just doing the job of handing out food and picking up trash. No personal touch whatsoever. Food was subpar for an AA flight, especially international. Entertainment system has many defects and problems, for example "search" is useless. Uninspiring and forgettable film choices as well. The knob to control air flow was broken which made it chilly. To finish as I started, a more engaged and pleasant crew could have made all the other things more palpable and acceptable. They were just too cold, like the temperature in the cabin and distant."

Cons: "No space! Glad I was sitting next to family! Seats were tight...no leg room...long flight!"

Pros: "Nothing!"
Cons: "I never felt like writing a review but I feel like I should let other families with little ones know. My wife, 2 year old son, and I was boarding at the gate and they couldn't scan my son's boarding pass. They quickly went over to the computer station and gave my son another pass. We went to our seats and found out someone else is in our 2year old seat. Apparently they gave the seat to someone else at the last second because up to the point when I printed our boarding passes at the kiosk, our seats were still together (and I paid $41/per seat extra to try to keep us together). The other customer was nice enough to switch with our son so were able to stay together at the last min so it goes to show AA priority and service."

Pros: "Tv and power outlets"
Cons: "This one attendant didn't get her name but was very cold to me"

Cons: "Flight was canceled, so our young family had to spend the night in the airport because they couldn't give us a decent option to get back home. Second time we have had problems with AA"

Pros: "just Ok for everything."

Pros: "Flight attendants were very friendly and attentive."

Pros: "Flight crew was excellent."
Cons: "We booked flights through British Airways but flew American Airlines. The check in process was a stressful mess: we were forced to stand in long customer service lines both on our first flight from LAX to Chicago and again during our very short layover in Chicago to Dublin to ensure that our bags were checked all the way to our final destination. Very stressful, and it didn't help that the gate crew was extremely rude and unprofessional. It is very inconvenient that we could not choose our seats beforehand."

Pros: "Direct Flight from LAX to RDU on a redeye."
Cons: "Delayed 5.5 hours at LAX. Boarded on time, waited at gate for 1.5 hours and then had to get off. During our delay waiting for a 1st Officer, the Captain times out. NO BACKUP CAPTAINS or 1st OFFICERS AT LAX? Then miraculously during our 3rd hour waiting for a Captain they discovered the 1st Officer was going to time out. So, rather than KNOW this while searching for a Captain, they waited for 3 hours and then had to find a 1st Officer to fill in. Result 2.5 more hours of delay. Even the Flight crew was in disbelief on this one. I think we should all get reimbursed and triple miles for this snafu. Not weather or mechanical - just poorly managed time -- BY A MAJOR AIRLINE - INEXCUSABLE!"

Cons: "plane had mechanical problems - new plane and gate and an hour delay. - first drink should have been free"

Pros: "Comfortable seats, great crew, lots of food & drink options, great screens with excellent selection of movies & games."
Cons: "Long flight. We did not realize that we needed to claim baggage and then re-check it at Japan Airlines for a domestic flight. Airport personnel were understanding and helpful, so no crisis."

Pros: "Flight on time."

Pros: "The entertainment system. It was awesome. The crew was friendly."
Cons: "Nothing notable."

Pros: "Everything"

Cons: "LATAM deboarded me from the flight after I had boarded. They claimed American had cancelled my reservation because they did not think I would make my connection. I ran in order to make it and then instead of offering me information on the next flight they left me stranded with instructions to find American. Terrible, terrible customer service. I will think twice before booking a LATAM flight again."

Cons: "The boarding was seemed unintelligent. Why would a passenger in a window seat have to wait until the other middle and aisle passengers board. I got on the plane and had to wait for the other two passengers get up and step into the aisle so I could take my window seat. I was in group 7 and apparently they were in a lower number group that was allowed to board before me."

Pros: "Crew was nice"

Pros: "Overall it was very comfortable and smooth flight."
Cons: "The airplane was looked new, clean and the seats were very comfortable."

Pros: "No excuse on a night flight does the temperature to be 80 plus degrees on the plane."
Cons: "The plastic seats and extreme temperature was brutal. They shut the AC off of down somehow."

Cons: "I like milk. Also space out drink service and offer tea and coffee periodically."

Pros: "How friendly the staff at the gate always are."
Cons: "How lazy and unfriendly the staff at the ticket counter in LA are. I really hate that they make you check in yourself PLUS print out your own bags tags while they just stand there looking at you. What a waste of time and my money paying to be on this flight!"

Pros: "Nothing. Flight was late, I was bumped out of my seats that I paid extra for. The seats we had wouldn't recline. Boarding was announced in 5 minutes so lines were formed and we boarded 35 minutes later as we had to wait for one extra cabin crew member. We got charged toe all our bags (see SWA). There was human waste in the bathroom."
Cons: "See above"

Pros: "Surprising seat comfort in economy."

Pros: "The onboard entertainment options were great."
Cons: "I don't understand advertising an outlet at every seat and not providing converters from the European outlets on an American domestic flight."

Pros: "Great service and convenient flight."

Pros: "The plane was sleek and clean. I had a good amount of room even in coach!"

Pros: "They have a huge selection of movies"
Cons: "They do not have gluten free options"

Pros: "Clean, smooth flight, on time. Enjoyed the blankets and the inflight movie options were good."
Cons: "Cramped, and we didn't get seats together... Hate the system where you have to pay $30-$95 additionally to choose your seats before check in, just doesn't seem fair when the tickets are already crazy expemsive and you're paying for your luggage as well... if you don't pay extra, you (we) end up sitting across from the restroom for six hours of in and out excitement."

Pros: "Well organised"

Pros: "Roomy aisle seat"
Cons: "Nothing"

Pros: "What I liked? That the flight ended and I could get off the plane."
Cons: "They charged to pick seats. They charged to carry on a bag. They charged for any drinks. The seats had NO padding. The seats didn't recline. The gate at O'Hare was dark and dirty. The travelers in my flight would have scared the residents of Mos Eisley."

Pros: "Fast boarding and that's the only good quality. No refreshments or snacks offered without a price tag included. Seats don't recline. Uncomfortable hard seats without any head rests for Support. Small tray tables that won't hold a laptop or drink."
Cons: "It's been 45+ minutes after landing that we have been stuck on the runway unable to dock the plane due to some delays. How Terrible is it that the pilot gets on the radio to say he has no updates or much information to give! People are antsy, children crying and this delays all passengers with other accommodations. Seems like there's no communication or organization from Frontier at all!!'"

Pros: "Getting off the plane"
Cons: "Being in the plane"

Pros: "It was cheap. The boarding was smooth. It wasn't overbooked. There was space for my carryon. Crew was nice. Was on time."
Cons: "No free beverage. Small seats and no leg room. Not happy about the carryon charge but whatever."

Cons: "I had broke my phone coming from a music festival so i had no way to call them, traffic and construction made me miss my flight by 20 minutes and they would not help me get another flight or refund my money"

Pros: "Nothing was positive while using Frontier Airlines"
Cons: "Everything was pretty unpleasant: 1.) hidden baggage fees ($45 round trip would be one thing for a CHECKED BAG, but $90 collectively for the round trip is FRAUDULENT) Especially when most airlines don't charge for carry on bags or it's at least calculated in the final cost. At first when I booked this trip with FRONTIER $180 for my tickets looked like a decent deal, UNTIL I WAS TOLD AT THE COUNTER THAT I HAVE TO PAY $45 each way for a FRIGGIN CARRY ON BAG!! turning my reasonable and anticipated $180 trip turned into almost a $300 (NEARLY doubled my cost!) had I known I could have at least packed more into a checked bag for that price. 2.) my flight was delayed 4 hours on my outgoing flight, cutting into my personal time off and no compensation or even a kind gesture like a free McDonald's sandwich when you land...you guys really have poor quality and seem like you don't really care about the paying customer 3.) staff seemed clueless and didn't know how to answer customers questions as to why our flight was delayed!! 4.) mechanical issues with plane were the cause, or at least that's what the copilot or captain Just HAD TO MENTION TO US RIGHT BEFORE TAKEOFF, causing everyone to stir and raise eyebrows. 5.) to top off him mentioning the mechanical issues they were having with the plane the flight was rough..I've never been more tense or anxious on any of the other 30+ flights I've taken in my life. Pilot didn't seem to know how to handle turbulence."

Pros: "price, updates and friendliness"

Pros: "Crew was very pleasant. We were able to board easily. Like the newer seats that don't take up so much space so there is more leg room."
Cons: "Cabin was freezing, until one of the crew came back and adjusted it."

Cons: "Seats are hard and our row was not allowed to recline. Late take off and late landing, plus we did not have a gate for 20+ minutes after landing. Crew acted like they wanted to be somewhere else."

Pros: "Easy flight"
Cons: "When I booked no option to pay for luggage. Had carry ons. Very expensive. Felt that was a bit of bait and switch. Lots of extra charge for carry on. I would have packed lighter and brought less had it been clear. Cost me an extra $75 each way"

Pros: "Best Frontier experience I've had in a long time. Everything was very good and despite a delay getting the plane to the gate in Chicago, we were able to make up almost all of the time!"

Pros: "attendants were friendly, patient and in good humour."
Cons: "cramped, no room. high priced snacks and bevs,"

Pros: "The price and schedule choice"
Cons: "They try to trick you into buying other things and speak in a condescending way on the website. There's no entertainment not even a magazine. The seats which are super ridiculously tight don't recline and there's no cushion for your head. You have to pay $3 for a soda and the batteries are so small you can barely fit which is great when there's pee all over the floor. The outbound flight was delayed over an hour with no explanation and perfect weather. When I asked for more water in the tiny cup, she poured it half way. I guess they are really trying to save money. Makes me wonder they took shortcuts on safety to save a few dimes."

Pros: "a smooth ride. we left a half an hour late."
Cons: "paying the carry on fee"

Pros: "Overall quickness and friendliness of staff."
Cons: "No free food."

Pros: "O'hare airport."
Cons: "I was unable to print a boarding pass at one of the many kiosks - it informed me I needed to speak with a Frontier agent. The line for the agents was about 2 hours long, too long to wait to make the flight. After being told by a frontier employee that I'd just want to get in to the line to rebook on a later flight (9 hours later) I proceeded to speak with a momentarily vacant agent who, helpfully, printed and handed me my boarding pass. I arrived at the gate to a closed door and ended up needing to rebook anyway. I decided to just not go on the trip.... wasn't worth having to deal with Frontier 2 times in one day."

Pros: "I like averything about timing and been punctual."
Cons: "You have to pay for everything! The seats are uncomfortable. They should have at least free WiFi, so you feel the pain of the seats!"

Cons: "Short-staffed, so short tempered workers.kiosks did not work. Nickled and dimed on everything. Like flying in prison. No light and a cold hard bench seat. Awful."

Pros: "I really liked the brand new and updated Airplane. The fit and finish was quite nice and the electronics and lighting were nice."
Cons: "The crew was poorly trained in virtually all aspects of their duties. They had no coordination among themselves and ran around like a bunch of chickens with their heads cut off. One attendant yelled at a passenger at one point. They kept turning the lights on and off abruptly and made a HUGE deal about throwing away the trash because otherwise they will get stuck doing it all. The intercom system was also abused as the attendants made, at times foolish announcements, with a different attendant speaking almost each time. One would almost yell while another would speak very softly. The intercom system and speakers on this plane, particularly from the cockpit, when the captain spoke, sounded like it was from the Vietnam War era. For a brand new airplane, this was a disappointing shortcoming in the technology. We experienced excessive turbulance for the majority of the flight as well. I do not know if this is something the pilot is able to overcome but on this flight, it certainly was an issue as i almost had to vomit from all the very abrupt and excessive motion. I would not rate this as one of the better flights i have been on."

Pros: "Seats were more comfortable than I expected"
Cons: "Flight was delayed more than 2 hours."

Pros: "Little"
Cons: "Seats are aweful. Charged bags, especially carry on are deceptive. Flight late"

Pros: "They are charge me for carry bag $40"
Cons: "They are charge me for carry bag $40 I book and pay online ticket $60 only Thank tto"

Pros: "That I got home."
Cons: "The horrible seats, no space, everything has a cost from soft drinks to carry-on. The one inexpensive flight ended up costing another $86 and that wasn't any food or drinks. Additionally when you check in they lead you to believe you HAVE to buy a $9 seat because nothing else is available when on reality, if you don't pay the seat costs 0 at the gate. Never again Frontier!"

Pros: "The crew"
Cons: "My flight was over three hours late. There was no compensation for anything, as well as no explanation as to the delay."

Cons: "delayed two hours and were not kept updated, checked suitcase was torn when we picked up at baggage"

Pros: "Nothing"
Cons: "Worst customer service"

Pros: "This flight was ok but my history with frontier airlines is awful. I only flew them because it was the only option."
Cons: "Lack of customer focus or care. Hidden fees for everything."

Pros: "nothing"
Cons: "the fact that i was delayed more than 5 hours on the departure and more than 1 hour on the way back. Why is there an option for entertainment when none is provided? Also you need to pay for the food"

Pros: "I liked the price of my ticket. Not having complimentary food and drink was OK to maintain the low ticket price."

Cons: "Seats are not conftable"

Pros: "Crew service"
Cons: "Free drinks and Snacks weren't provided"

Pros: "On time, friendly and affordable prices"
Cons: "Not very clean, the airplane was messy"

Pros: "The price of the ticket"
Cons: "The seats were awful, no padding what so ever!!!!"

Cons: "3 HR unknown delay"

Pros: "The flights were great. Left on time and arrived early!"
Cons: "Nothing"

Pros: "Good flight"
Cons: "Just remember, you get what you pay for. My flight was $148 from Denver to Chicago on Frontier."

Pros: "Flight attendants were nice no different than any other time I have flown on a plane"
Cons: "There were 2 small girls 3 seats in front of me and they screamed at the top of there lungs for most of the flight. Neither one of their parents seemed to be really bothered by it and so I think the flight attendants should have put an end to the screaming since the parents wouldn't. Also the kid that was sitting in the seat in front of me threw up and it dripped though his seat and onto my bag"

Cons: "Bad experience overall"

Cons: "The boarding and exiting process was unapologetically slow. The cabin was super hot the entire trip and didnt feel there was enough circulation. There seats are horrible. The staff only came by once and completely skipped me and when i flagged here down, she was very annoyed."

Pros: "Initial cost of flight. Later disappointed that it was as expensive to check three bags."
Cons: "Seats were uncomfortable, mere plastic shells compared to other airlines and seats in our area did not recline. Very little legroom as rows seemed to be compressed. Being told we had to pay for checked or carry on luggage on-line so we checked three bags since we had to check one anyway. Then noting other passengers getting on the flight with bags they were putting in upper compartment without seeing how it had been verified that they had paid to bring on luggage to put in the overhead. I feel like a schmuck for paying for bags when it did not appear anyone was checking to see who paid and who didn't. Not even soft drinks were free."

Pros: "The flight was great and everything leading up to the luggage pick up was good. The flight landed a half hour early and the flight left on time. Getting the luggage took an hour and a half and they sent us back and forth between two different pickup locations. What should take 15 minutes took much longer than desired."

Pros: "2 of 2 trips, over an hour late due to time sitting on the tarmac."

Pros: "Easy check in, we took one check in bag instead of three carry-ons and paid online to keep the price under control."

Cons: "Had to sit to wait fr long time to get to arrival gate after landing"

Pros: "Same as many other reviews, upset I had to pay extra just to select not a premium seat, but literally a seat on a flight I already paid for & pay to either check a bag or carry a bag on. I'll never fly frontier again & probably never book through kayak again either."

Cons: "Frontier airlines. Rigid and unable to admit that they made a mistake. Caution towards anyone who flies with their special low discount rates. Many opportunities were taken by company to recover discounted fare (and I am not referring to any baggage costs) Besides money, they ruined a special weekend through delays. Think twice! In fact, my comment is in reference to customer service in general. Everything is a fight now. I'm not a screamer, I'm rational. I laid out,clearly, where their policy was contradicted and that some empathy was in order and in the process was hung up on once and have not received a reply to my last email. If you gave no intention to achieve quality customer service, why pay for the department? Maybe they don't."

Cons: "Lost my luggage and people at check in were rude"

Pros: "Funny crew. Did not crash."
Cons: "Cramped, all the charges and steps involved checking in the day before."

Pros: "seat dont recline"
Cons: "pay for every thing even a drink seats dont recline"

Pros: "The crew were friendly and helpful"
Cons: "(a) No wifi (b) Being nickled and dimed for too many things (c) really uncomfortable plane. Even the $30 premium seats are terrible and don't recline If I had known about carry on and seat assignment fees I would have just flown on a different airline because there would have been no difference in price."

Pros: "trip was bad"
Cons: "Turbulence was bad and no complimentary water"

Pros: "This trip was on a newer airplane I believe as it seemed there was a little bit more leg room between rows/seats. Seats did seem a little bit more comfortable than the previous Spirit jet I flew on."
Cons: "Still seemed cramped in the seats with not much leg room. Seats did not recline at all"

Pros: "Staff very friendly and helpful"
Cons: "Seats uncomfortable"

Cons: "Very forceful in trying to sell your credit card, over and over you kept trying to sell it. Just annoying."

Pros: "It took off on time, boarding and exiting were faster than I’ve experienced on other airlines. I can’t ask for more and was really happy about it for that reason."
Cons: "It’s a budget airline so entertainment was non existent, but that’s really not important to me."

Pros: "Flight good very basic plane like they don’t even have a pocket holder and the tray is minuscule. The chairs are pretty firm but not bad for my 2 hour flight."
Cons: "My baggage was damaged , found open with one of the contents upon top of luggage, found it after beltmstopped and couldn’t find mine, I asked about it and Spirit lady said it’s to the side"

Cons: "Na"

Cons: "Not much leg room. They don't serve food. They have outrages bag fees. I don't recommend this airline to anyone."

Pros: "Flight was smooth and relaxing"
Cons: "The delay but it wasn't to long of a delay"

Pros: "I liked that the staff was very friendly and helpful"
Cons: "I dod not like that a price amount was added for everything extra"

Pros: "Got what paid for"

Pros: "Nothing"
Cons: "I arrived at the terminal three hours early, connecting from a non-Spirit flight from Central America. Spirit employees wouldn't check me in, saying they were too busy and I need to wait, but no worry, there's plenty of time. Asked again later and was told to check in online. Checked in online and was told (after the many upsell screens) that I couldn't print a boarding pass and needed to go to a Spirit counter. Went back to the Spirit gate and they said I hadn't checked in so they gave away my seat, and they didn't have another flight until tomorrow. Did I want it? Nope. Bought tickets on a real airline. Will never, ever travel with Spirit again."

Cons: "Online check in was great but after printing boarding pass at home still had to wait in long line to just check bag"

Pros: "None"

Cons: "The seats are cramped and on the way back, they canceled all flights back to Houston, causing us to pay an extra $600 in order to get home to work on Monday."

Cons: "Our return flight was cancelled and we received no phone call or email of any kind letting us know. We had a wasted trip to the airport and my buddies vacation time was up the next day so it put him in the hot seat at work. They were very unprofessional at the check in counter while we were trying to figure out what to do. My friend who we were going to see in Denver had flown spirit a few months before to come see me in Texas. And he had some unnecessary issues also with delays and unprofessional personnel. I won't be using them again. Use a different airline."

Pros: "Price was right"
Cons: "Reserved my seat but didn't get it; cramped."

Pros: "Ran on time. Crew was very polite. Flight also arrived early which was nice."

Pros: "FRIENDLY CREW"
Cons: "FLIGHT DELAYS"

Pros: "Ease and price, legroom was ample as well"
Cons: "I didn't like paying for my water"

Pros: "Pilots did an amazing job with category 3 landing."
Cons: "People were just walking onto plane without scanning in. Boarding attendants were allowing total chaos. Also, why so many flight attendants and crew onboard?"

Pros: "Nothing"
Cons: "Everything"

Pros: "On time! Flight was good. Good option for a good price."

Pros: "The price"
Cons: "The information"

Pros: "Cheap fare."
Cons: "Fees for everything."

Pros: "Everything was as expected. I highly recommend springing for the big seats on Spirit flights!!! It was well worth it."
Cons: "One small bag for a weekend trip is fine, but the price for anything extra is crazy expensive!!!"

Pros: "Short Flight Good communication from the pilot - could have waited 15 - 20 min before actually telling us that we were starting the decent"
Cons: "I felt like a sardine. Sat between two large men, and I was SMUSHED. No comfortable positions - thank goodness the flight was short. The bathrooms were disgusting on the flight."

Pros: "It's a plane. It was a short flight- all was fine. It was cheap, and I didn't need any baggage, so Spirit is the best airline for that. You can't beat the price. Booked the night before- about 16 hours before the flight."

Pros: "Great overall experience, great price"

Pros: "The flight left on time-boarding was a breeze-the crew was professional and friendly-and the flight landed early. Great job!"

Pros: "The crew was friendly."
Cons: "Both of our flights were delayed for two hours with no explanation. Other airlines didn't seem to be having the same problems. It is rediculous that they charge for bags and that they are the only airline with a 40 pound weight limit when all of the others are 50 pounds. They charge $10 just to print the boarding passes at the airport. All of this they claim saves you money on the fare, but with all of the nickel and diming that they do to you after you purchase the ticket, it is much more affordable to go with another airline. I will choose some one else to fly with next time."

Pros: "Nothing"
Cons: "I wasnt allowed on my plane when it wasnt leaving for 43 minutes after i had arrived there. I would have been there the RECOMMENDED hour and a half early if i hadnt run into heavy traffic. Unfortunately, I only had 43 minutes before the plane left denver and the crew told me that i was late and wouldnt even give me the opportunity to try and get to the aircraft before it left. Then they told me that i could pay almost double what i had origionally spent on the flight to wait 4 hours for the next one with a 6 hour layover for thr connecting flight. I had then asked if it was possible to be reimbursed, the guy at the counter started laughing and said no it was my fault i was late. I have never been treated with such disrespect before in my life. I just dont understand, because no where does it say that if you're not there 50 minutes prior to the flight that you forfeit your flight. 50 minutes, i was there 43 minutes prior. Now i wont be able to visit my family for another year because i used my vacation time for that aweful experience with spirit ovwr 7 minutes. Then when i called kayak to explain to them what happened, they told me there was nothing they could do over and over again. Absolutely no help from either party."

Pros: "Crew was polite."
Cons: "The seats were horrible. I was aware that the Spirit seats would not recline but I did not know that they had so little padding. The ones with the gray backs we encountered on the flight to Denver were intolerable. The ones with the blue/black backs we encountered on the way back were better padded but still too uncomfortable for any flight more than an hour. I've encountered cement benches that were more comfortable. Never again."

Cons: "We booked and it took 30 minutes to move because of the AC"

Pros: "Everything was on time and as expected. The pilots were great and maneuvering around a storm outside of Denver."
Cons: "Nothing to dislike, really."

Pros: "Nothing except that the pilot didn't crash the plane."
Cons: "Everything"

Pros: "My flight TO Denver was fine. Nice new plane, crew was pleasant etc."
Cons: "My flight FROM Denver TO Houston was a nightmare. The plane was disgusting and smelled like dirty diapers. Everything was sticky and gross. I had to throw out the clothes I was wearing on the plane afterwards. I cannot believe the inconsistency. Never again will I fly Spirit."

Cons: "Flight kept being delayed and then it was cancelled."

Pros: "It was an absolute disaster coming into DIA due to weather, but the crew kept us updated on events and it was great to be informed of what was going on."

Cons: "Delayed flight, sat on Tarmac for 40 min.."

Pros: "Nothing!"
Cons: "They didn't let us know it was cancelled after 4 hours of waiting due to bad weather even though all the other flights were taking off."

Pros: "I like the cost for the flight and everyone was very nice."
Cons: "I did not like that there was a big delay in the departure of the fight, I did not get to my destination until very late; this caused me to miss several activities planned for my granddaughter's graduation. I would have liked for my bag to fly at a lower cost as well."

Pros: "Everything was pretty good. Plane was clean, boarding was fine. I think if you know going in, there are no extras, then you'll be perfectly content. Also, there was more room than expected so that was nice."
Cons: "I have to say the crews going there and back could use a little more professionalism and customer service training. I don't wan't to blanket criticize all of them because I didn't come into contact with everyone of them as much as others, but I was put off by the flight attendants attitudes. They don't help as much as on other airlines and don't pass out food to everyone like on other airlines, so when I do order and pay for it, I expect a pleasant reaction, not to made feel like a burden."

Pros: "I did not know what to expect flying first time on Spirit but was pleasantly surprised at the efficiency and kindness of the employees."
Cons: "I was not pleased to find that the weight for a bag was 40 lbs and was charged $25 on top of the $40 bag fee for an overweight bag. This must have been in the fine print for I did not see it and packed my bag to be less than 50 lbs. The seats have no leg room and I found them to be restrictive for my 5'2" frame. They do not recline due to the space "saving" efforts of the airline. If you are looking for "cheap" remember to add on all the fees charged for bags, select seats, beverages before comparing to other airlines."

Pros: "Cheap. Ramen noodles. My personal carry on fit."
Cons: "EVERYTHING ELSE SUCKED!!! I actually opted to drive home 1100 miles rather than fly back."

Pros: "The intial price of the ticket was good."
Cons: "The seating is a tight squeeze. The plane was also very dirty. I'm happy i brought some wipes so I could wipe off my tray before using it. The lady who I checked in my bag at the ticket counter was absolutely rude. She ruined my mood for the rest of the day. Also by the time I finished paying for my bad there and back I could of paid for a nicer flight. I know better for next time."

Pros: "that it was on time"

Pros: "Boarding was fast and easy"
Cons: "Flight was delayed as always and the lines were astronomical to check a bag and print a boarding pass. Something that costs way too much money to be such a hassle."

Cons: "my flight was late arriving to Houston ONE HOUR ... and plan was very noisy and .. PLUS MY FLIGHT FROM HOUSTON TO DENVER FEB 25 WAS OVER 2 HOURS LATE... I AM VERY UPSET SINCE I LOST A WHOLE DAY OF SKINNG WHICH I WAS TRYING TO DO AFTER 19 YEARS LATER .... RUINED MY 4 DAYS VICCATION WITH MY ELDER BROTHER....THEN GOING BACK HOME ALMOST ONE HOUR LATE............................................................................................................................................."

Pros: "The flight attendant was funny"
Cons: "They lost my baggage and sent it to a completely different state."

Read more about Sun Country Air
COVID-19 information

Safety measures for airlines flying from North America to Colorado

Airlines flying from North America to 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 North America to Colorado

Mandatory masks

Masks required on board, masks provided on flights from North America to Colorado

Social distancing seating

Middle seats unavailable to book on flights from North America to Colorado

Pre-flight testing

Testing for antibodies, testing for symptoms for flights from North America to Colorado

Book cheap flights from North America to Colorado

Recent round-trip flight deals

3/10
Wed
nonstop
Frontier
2h 46m
ORD - DEN
3/16
Tue
nonstop
Frontier
2h 24m
DEN - ORD
3/10
Wed
nonstop
Frontier
2h 46m
ORD - DEN
3/16
Tue
nonstop
Frontier
2h 24m
DEN - ORD
3/30
Tue
nonstop
Frontier
2h 39m
IAH - DEN
4/6
Tue
nonstop
Frontier
2h 22m
DEN - IAH
4/20
Tue
nonstop
Frontier
3h 02m
ORD - DEN
4/27
Tue
nonstop
Frontier
2h 45m
DEN - ORD
2/1
Mon
nonstop
Frontier
3h 29m
ATL - DEN
2/5
Fri
nonstop
Frontier
2h 50m
DEN - ATL
3/30
Tue
nonstop
Frontier
2h 39m
IAH - DEN
4/6
Tue
nonstop
Frontier
2h 22m
DEN - IAH
3/10
Wed
nonstop
Frontier
2h 46m
ORD - DEN
3/16
Tue
nonstop
Frontier
2h 24m
DEN - ORD
2/25
Thu
nonstop
Multiple Airlines
2h 38m
IAH - DEN
2/27
Sat
nonstop
Multiple Airlines
2h 23m
DEN - IAH
3/18
Thu
nonstop
Multiple Airlines
2h 28m
ORD - DEN
3/23
Tue
nonstop
Multiple Airlines
2h 24m
DEN - ORD
3/1
Mon
nonstop
Multiple Airlines
2h 33m
IAH - DEN
3/4
Thu
nonstop
Multiple Airlines
2h 23m
DEN - IAH
2/4
Thu
nonstop
Multiple Airlines
2h 27m
MSP - DEN
2/11
Thu
nonstop
Multiple Airlines
1h 54m
DEN - MSP
3/8
Mon
nonstop
Spirit Airlines
2h 29m
IAH - DEN
3/13
Sat
nonstop
Spirit Airlines
2h 13m
DEN - IAH
5/15
Sat
nonstop
Spirit Airlines
2h 16m
LAX - DEN
5/19
Wed
nonstop
Spirit Airlines
2h 32m
DEN - LAX
3/4
Thu
nonstop
Multiple Airlines
2h 07m
MSP - DEN
3/9
Tue
nonstop
Multiple Airlines
1h 56m
DEN - MSP
5/8
Sat
nonstop
Spirit Airlines
2h 32m
IAH - DEN
5/15
Sat
nonstop
Spirit Airlines
2h 19m
DEN - IAH
2/21
Sun
nonstop
Sun Country Air
2h 11m
MSP - DEN
2/25
Thu
nonstop
Sun Country Air
1h 54m
DEN - MSP
4/8
Thu
nonstop
Sun Country Air
2h 10m
MSP - DEN
4/11
Sun
nonstop
Sun Country Air
1h 53m
DEN - MSP
2/5
Fri
nonstop
American Airlines
2h 52m
ORD - DEN
2/9
Tue
nonstop
American Airlines
2h 31m
DEN - ORD
1/30
Sat
nonstop
American Airlines
2h 18m
LAX - DEN
2/2
Tue
nonstop
American Airlines
2h 45m
DEN - LAX
3/7
Sun
nonstop
United Airlines
2h 00m
DFW - DEN
3/13
Sat
nonstop
United Airlines
1h 58m
DEN - DFW
Show more results

Recent one-way flight deals

3/30
Tue
nonstop
Frontier
3h 00m
ORD - DEN
2/16
Tue
nonstop
Frontier
2h 18m
MSP - DEN
2/2
Tue
nonstop
Frontier
2h 38m
IAH - DEN
2/1
Mon
nonstop
Frontier
3h 29m
ATL - DEN
2/4
Thu
nonstop
Frontier
2h 27m
MSP - DEN
2/2
Tue
nonstop
Frontier
2h 13m
DFW - DEN
2/8
Mon
nonstop
Frontier
2h 18m
LAX - DEN
1/31
Sun
nonstop
Frontier
2h 54m
ORD - DEN
2/21
Sun
nonstop
Spirit Airlines
2h 29m
IAH - DEN
1/31
Sun
nonstop
Sun Country Air
2h 11m
MSP - DEN
4/17
Sat
nonstop
Spirit Airlines
2h 49m
ORD - DEN
4/4
Sun
nonstop
Sun Country Air
2h 08m
MSP - DEN
1/31
Sun
nonstop
Spirit Airlines
2h 33m
IAH - DEN
1/31
Sun
nonstop
Spirit Airlines
2h 33m
IAH - DEN
2/3
Wed
nonstop
American Airlines
2h 18m
LAX - DEN
2/5
Fri
nonstop
American Airlines
2h 52m
ORD - DEN
5/17
Mon
nonstop
Sun Country Air
2h 08m
MSP - DEN
2/15
Mon
nonstop
Delta
2h 20m
MSP - DEN
2/13
Sat
nonstop
United Airlines
2h 09m
DFW - DEN
2/26
Fri
1 stop
Multiple Airlines
15h 37m
ORD - DEN
Show more results
-
1
  • Round-trip
  • One-way
  • Multi-city
  • Trip Builder
  • Economy
  • Premium Economy
  • Business
  • First
  • Multiple
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First
Economy
  • Economy
  • Premium Economy
  • Business
  • First