$44 Find Cheap Flights from Colorado to the United States

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Low seasonJanuary
High seasonJuly
Cheapest flight$44
Best time to beat the crowds with an average 8% drop in price.
Most popular time to fly with an average 1% increase in price.
Flight from Denver to Las Vegas

Flights from Colorado to the United States: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from Colorado to the United States 
JesseFlew with Air CanadaDEN-INDMay 2025
takes times in security check, so come early
Verified travelerFlew with Alaska AirlinesDEN-SEAOct 2024
Go early, it’s a big airport. There are two TSA screening areas, one might be more crowded than the other. From checking it to the gate give yourself at least 20-30 minutes to get there.
AdamFlew with SouthwestDEN-ORDOct 2024
Arriving T5 at ORD on Southwest is often a LONG walk, with no moving walkways going out, to baggage claim / pickup.
Verified travelerFlew with Qantas AirwaysDEN-LAXSep 2024
You don’t have to arrive two hours early since it is a domestic flight
JasonFlew with United AirlinesDEN-IADNov 2024
DIA is a large airport. Get there early.
kristenFlew with United AirlinesDEN-MCOJul 2024
allow plenty of time for your connection, if you're connecting somewhere, bc. its a very LARGE airport and your connection is likely a long trek....
F.Flew with United AirlinesDEN-PSCAug 2024
Check airline delay flight rate and choose another airline if you have important commitments to avoid frustration and missing important meetings.
kristenFlew with United AirlinesASE-DENJul 2024
weather can cause delays, and pack light if you chose to carry-on
Mike & DebbieFlew with SouthwestDEN-SDFAug 2024
Denver is a huge airport. Be prepared to walk plenty.
RogerFlew with United AirlinesDEN-SAFJun 2024
Also delayed. SAF road under ongoing construction for next several years. Car rental pickup is a disastrous 4 wheel drive off toad experience. Maybe flying ABX is better and then drive up to Santa Fe
MichaelFlew with United AirlinesDEN-INDMar 2024
Eat before you get on the plane. Arrive at the gate early if you have carry-on luggage.
Verified travelerFlew with Air CanadaDEN-COSMar 2024
Make sure if you need a wheelchair you have plenty of time to between connecting flights.
Verified travelerFlew with Air CanadaCOS-DENMar 2024
Make sure to have snacks and drinks with you if you need them.
BindulFlew with United AirlinesDEN-IADFeb 2024
There are multiple flights between DEN and IAD everyday, including some wide bodies. Try and get on one of the wide bodies whenever possible.
RebeccaFlew with United AirlinesDEN-MSOFeb 2024
Big comfortable chairs that you can sleep on the B concourse.
BrianFlew with United AirlinesDEN-ORDJan 2024
Big airport. Make sure you have enough time between flights for rest, eating, etc…
RalphFlew with SouthwestDEN-PSPFeb 2024
If you really want a better seat make sure you upgrade.

FAQs for booking flights from Colorado to the United States

  • How does KAYAK find such low prices on flights from Colorado to the United States?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Colorado to the United States.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Colorado to the United States is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Colorado to the United States?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Colorado to the United States with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Colorado to the United States?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Colorado to the United States up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which is the cheapest airport to fly into in the United States?

    Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in the United States is San Diego Airport (SAN), with an average flight price of $129.

  • What is the cheapest day to fly to the United States?

    Based on KAYAK data, the cheapest day to fly to the United States is Thursday where round-trip tickets can be as cheap as $341. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $506 on average.

  • What is the cheapest time of day to fly to the United States?

    The cheapest time of day to fly to the United States is generally in the evening, when round-trip flights cost $261 on average. Morning departures are around 49% more expensive than evening flights, on average. The most expensive time of day to fly to the United States is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $605.

  • What is the cheapest flight to the United States?

    The cheapest ticket to the United States from Colorado found in the last 72 hours was to Los Angeles, at $34 round-trip. The most popular route is Aspen (ASE) to Denver (DEN) and the cheapest round-trip airline ticket found on this route in the last 72 hours was $176.

  • What is the cheapest month to fly from Colorado to the United States?

    The cheapest month for flights from Colorado to the United States is May, when tickets cost $323 (return) on average. On the other hand, the most expensive months are November and December, when the average cost of round-trip tickets is $439 and $408 respectively.

  • How far in advance should I book a flight from Colorado to the United States?

    To get a below average price on the flight from Colorado to the United States, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.

  • How long is the flight to the United States?

    An average nonstop flight from Colorado to the United States takes 3h 13m, covering a distance of 1365 miles. The shortest route is Denver (DEN) to Las Vegas (LAS) with an average flight time of 1h 55m.

  • What are the most popular destinations in the United States?

    Based on KAYAK flight searches, the most popular destination is New York (11% of total searches to the United States). The next most popular destinations are Las Vegas (7%) and Seattle (5%). Searches for flights to Washington, D.C. (5%), to Dallas (4%) and to Chicago (4%) are also popular.

Top 5 airlines serving from Colorado to the United States

 
Need help choosing which airline to fly with from Colorado to the United States? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.7
Denver Air ConnectionOverall score based on 8 reviews
9.7Crew
8.7Food
8.7Boarding
9.2Comfort
8.7Entertainment
Airline reviews

The connecting flight came in 45 min late but everything else was great

8.0 ExcellentR, Jun 2024DEN - CVN
Read more Denver Air Connection reviews

The connecting flight came in 45 min late but everything else was great

Absolutely easy travels and no cost cutting by the airline.

Their snacks and hospitality was amazing. They offered full sized snacks. Im talking full sized water bottles, full sized snickers bars, gold fish, full sized canned sodas, what ever you wanted they took care of it for FREE. The crew was really nice and hospitable. I was honestly shocked

Southwest is Southwest. No frills. If you're luck enough to get a happy crew (we did), then it makes for a nicer flight.

Southwest is typically delayed, and it gets wearisome. It is no longer a discount airline and you get way less than you pay for when it comes to comfort and Ce.

We sat on the plane on the tarmac for 4 hours.

I'm not a fan of Southwest's model. I don't like the herding style of boarding.

Flight crew and cabin crew were great. I had to rearrange flights because my original flight was 3hrs delayed for weather, the rub is the flight I moved to boarded on time then we sat at the gate for 2 hours because scheduling stole our first officer for another flight, TWICE. Then our actual FO was an hour delayed. To make it worse my original flight went from a 3 hour delay to departing 15min EARLY. Just poor scheduling operations all around.

Bring back peanuts Take our drink orders when were all seated, especially after you switch to assigned seating.

Staff was far less than helpful at all times. Departure and arrival times mean nothing to Southwest. Extremely disappointed, will never fly with them again, and I’ll be sure to share my experience with all.

It is southwest seat was ok. Not the most comfortable seat

I’ve always loved Southwest. No issues at all. I was flying standby and the gate agent was extremely friendly and helpful. Boarding was smooth and I was able to get a window seat in the emergency exit row. Crew was fantastic! They were very professional and accommodating. We had to divert from our destination due to weather but the flight crew kept everyone at ease and informed us of all pertinent information. Excellent flight

The price of the tickets isn't matching the flight experience. No matter how long the flight is, you're only getting pretzels. The flight attendants looked unkept and over it.

Impressed with the service despite turbulence because of the weather. Both flights arrived before their scheduled times.

Great experience…left a bit behind schedule but made up fir that in the air and landed 10 minutes early 😁

Electric plugs didn't work. Entertainment system wasn't working

The design of the light switch on the arm rest is ridiculous.

The gate attendant let me walk right by her with a bag too big for the overhead compartment

Overall poor for me I paid extra for seats with leg room and my regional flights exit row seats have less leg room then the others that's money that could have been saved and on my final flight home the flights air was not operating it was unbearably hot in the cabin I will be contacting United and filing a DOT complaint

I don’t understand the purpose of the orange “priority” tag on my bag. This tagged, my bag is last or near to the last bag to come down the carousel at IAH.

Overall, it was a good experience. Boarding was good and there was plenty of overhead bin space for everyone’s carryons (even when we boarded toward the end). Only improvement would be to offer trash service more regularly.

David went above and beyond to make our flight the best that it could be

No food service almost missed because of first flight delays

We had a wonderful flight due to the care of our experienced pilot and copilot and the magnificent air views from our comfortable seats. What excitement to be in such a small plane with such magnificent around us.

Multiple time changes, then we left earlier than we were told.

Communication could be better but the staff and crew were over the top friendly and helpful, The flight itself was smooth.

flight was cancelled literally at 10pm the night before an early morning flight with hardly any time to reschedule. Will never book with kayak again.

My flight was cancelled 12 hours before takeoff. I was not able to reschedule another flight to make connections and had to cancel the entire trip. The ticket that was supposed to replace the cancelled flight had no boarding pass and I was unable to get one at the airport so I was denied access to the rescheduled flight. I was refunded but I missed my daughter's birthday.

I had a family emergency and couldn’t make the flight, and they wouldn’t let me cancel/refund it (a *month* ahead of time), were especially difficult with me on the phone, and wouldn’t let me even so much as reschedule the flight or get credit.

Flight was cancelled, communication was poor and should have canceled flight much earlier.

Flight was cancelled twice. Moved four more times. Probably the least timely and poorly run airline I have ever experienced in my life. I have traveled hundreds of times to dozens of countries and this one takes the cake.

Excellent crew, good flight. Flight was delayed about 1 1/2 hours though.

Pros: "The ground crew and flight crew were great."
Cons: "Would have appreciated easier steps (lower risers) for boarding. Arthritic knee makes it hard for me to manage the high risers between steps. Also having armrests would have made the flight more comfortable."

I never got to experience the flight because they delayed my first flight and I missed this one. Then Frontier didn't want to help me rebook a flight to get me to my final destination.

The Boarding process in Denver was chaotic, and since the line was so long, we were lined up very far from the gate. If there were any announcements from the gate staff, we didn't hear them. The flight attendants were spectacular. The only negative part of the flight was sitting by a 2 1/2 year old who was unruly and unfortunately had parents that matched his behaviors. Also, the restaurants in Denver on the E concourse, they didn't have food (passengers could only order 1 item on the entire menu) or the restaurants had 12-14 people waiting for orders to be prepared and another 6 people waiting to order. If you have a layover in Denver and need to grab food, be prepared to visit the shops with pre-packaged sandwiches, or you can visit another concourse but it may take a while to transit throughout the airport.

Everything went as planned. Crew was great. Seats were still not that comfortable.

they delayed my flight which ended up, causing my layover flight to leave without me, resulting in me missing a flight and having to stay overnight in Houston international. I got no compensation other than a flight to my original location only a day later. i’ve never experienced such a unprofessional situation

The seats were extremely hard and uncomfortable, even for a budget airline.

Boarding was very well executed. Got my bag right away.

Overall experience good. There was no food and seats were not terribly comfortable.

There was nothing to like, flight delayed had to move to different departure areas, disorganized to say the leasr

There were a lot of issues every step of the process. Check in, security, boarding, and dealing with luggage. Plus the money you think you are saving you end up using in hidden fees.

The flight attendant was arguing with a passenger before takeoff. The passenger was frustrated but the flight attendant should have handled it with grace, but instead she was nasty and rude. The seats were comfortable and the flight was uneventful. I wish we didn’t have to pay for drinks or snacks but that’s what you get with a budget airline.

Book cheap flights from Colorado to the United States

Recent round-trip flight deals

7/15Tue
nonstopFrontier
2h 07mDEN-LAS
7/16Wed
nonstopFrontier
2h 01mLAS-DEN
$96
7/13Sun
nonstopFrontier
1h 59mDEN-LAS
7/15Tue
nonstopFrontier
2h 01mLAS-DEN
$97
7/29Tue
1 stop
8h 19mDEN-LAS
8/5Tue
nonstop
2h 16mLAS-DEN
$132
11/1Sat
nonstopAmerican Airlines
2h 43mDEN-LAX
11/1Sat
nonstopAmerican Airlines
2h 23mLAX-DEN
$152
8/13Wed
nonstopSouthwest
1h 55mDEN-LAS
8/18Mon
1 stopSouthwest
4h 30mLAS-DEN
$157
10/23Thu
nonstopAmerican Airlines
2h 01mDEN-DFW
10/27Mon
nonstopAmerican Airlines
2h 08mDFW-DEN
$157
8/2Sat
nonstopSouthwest
1h 55mDEN-LAS
8/5Tue
1 stopSouthwest
4h 50mLAS-DEN
$167
8/7Thu
nonstopUnited Airlines
2h 35mDEN-ORD
8/7Thu
nonstopUnited Airlines
2h 50mORD-DEN
$169
7/23Wed
nonstopUnited Airlines
2h 35mDEN-ORD
7/29Tue
nonstopUnited Airlines
2h 43mORD-DEN
$177
7/29Tue
1 stop
9h 44mDEN-LAS
8/1Fri
nonstop
2h 09mLAS-DEN
$182

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Recent one-way flight deals

7/9Wed
nonstopFrontier
2h 07mDEN-LAS
$44
9/9Tue
nonstopFrontier
2h 03mDEN-LAS
$47
8/23Sat
nonstopUnited Airlines
2h 02mDEN-DFW
$69
10/21Tue
1 stopHawaiian Airlines
5h 23mDEN-LAS
$72
10/28Tue
nonstopHawaiian Airlines
3h 04mDEN-SEA
$73
8/20Wed
nonstopUnited Airlines
2h 59mDEN-SEA
$79
11/5Wed
1 stopSouthwest
4h 05mDEN-LAX
$84
9/1Mon
nonstopSouthwest
2h 30mDEN-LAX
$91
7/13Sun
1 stopDenver Air Connection
3h 50mDEN-ORD
$162
8/17Sun
1 stopDenver Air Connection
15h 55mDEN-DFW
$168

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Last minute flights from Colorado to the United States

Last minute flight, train and bus deals

6/21Sat
nonstopFrontier
2h 05mDEN-DFW
6/30Mon
nonstopFrontier
2h 26mDFW-DEN
$142
6/17Tue
nonstopFrontier
2h 24mDEN-DFW
7/1Tue
nonstopFrontier
2h 17mDFW-DEN
$143
6/21Sat
nonstop
2h 38mDEN-ORD
6/28Sat
multi-stop
10h 51mORD-DEN
$254
6/21Sat
multi-stopUnited Airlines
6h 24mDEN-SEA
7/19Sat
nonstopUnited Airlines
2h 43mSEA-DEN
$277
6/20Fri
multi-stop
8h 23mDEN-ORD
6/28Sat
multi-stop
4h 51mORD-DEN
$345
6/21Sat
nonstopSouthwest
2h 55mDEN-SEA
6/25Wed
multi-stopSouthwest
8h 05mSEA-DEN
$352
6/21Sat
multi-stopSouthwest
5h 45mDEN-SEA
6/25Wed
multi-stopSouthwest
8h 00mSEA-DEN
$362
6/21Sat
nonstopUnited Airlines
2h 35mDEN-ORD
6/28Sat
nonstopUnited Airlines
3h 03mORD-DEN
$368
6/19Thu
multi-stopDenver Air Connection
3h 50mDEN-ORD
6/20Fri
multi-stopDenver Air Connection
4h 00mORD-DEN
$638
6/18Wed
multi-stopDenver Air Connection
3h 50mDEN-ORD
6/19Thu
multi-stopDenver Air Connection
4h 00mORD-DEN
$659

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Everything you need to know for your flight to the United States

Cabin class types available on flights to Colorado

Cabin classes available on flights to Colorado. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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