DEN

$49 Find Cheap Flights from Colorado to Denver

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Denver departing on 10/20. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

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Cheap Flights from Colorado to Denver

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Colorado to Denver that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Colorado to Denver

Thu, Oct 23 - Thu, Oct 23
United Airlines Logo
12:54 pm - 2:00 pmCOS-DEN
1h 06mnonstop
United Airlines Logo
9:03 pm - 9:54 pmDEN-COS
0h 51mnonstop
$97United Airlines
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Thu, Oct 9 - Thu, Oct 16
United Airlines Logo
7:30 am - 8:29 amCOS-DEN
0h 59mnonstop
United Airlines Logo
9:03 pm - 9:54 pmDEN-COS
0h 51mnonstop
$157United Airlines
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Fri, Oct 10 - Mon, Oct 13
Denver Air Connection Logo
3:30 pm - 4:25 pmALS-DEN
0h 55mnonstop
Denver Air Connection Logo
5:30 pm - 6:25 pmDEN-ALS
0h 55mnonstop
$182Denver Air Connection
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Mon, Oct 13 - Mon, Oct 20
Denver Air Connection Logo
8:00 am - 8:55 amALS-DEN
0h 55mnonstop
Denver Air Connection Logo
5:30 pm - 6:25 pmDEN-ALS
0h 55mnonstop
$198Denver Air Connection
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Sat, Nov 8 - Thu, Nov 13
Southwest Logo
12:45 pm - 1:55 pmHDN-DEN
1h 10mnonstop
Southwest Logo
10:00 am - 11:00 amDEN-HDN
1h 00mnonstop
$227Southwest
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Thu, Nov 20 - Tue, Nov 25
Southwest Logo
11:55 am - 1:05 pmHDN-DEN
1h 10mnonstop
Southwest Logo
10:30 am - 11:30 amDEN-HDN
1h 00mnonstop
$255Southwest
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Fri, Oct 3 - Sun, Oct 19
Multiple Airlines Logo
5:59 pm - 4:25 pmCOS-DEN
22h 26m1 stop
Multiple Airlines Logo
8:38 am - 5:14 pmDEN-COS
32h 36m2 stops
$275Multiple Airlines
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Sat, Oct 25 - Mon, Oct 27
Multiple Airlines Logo
11:55 am - 1:25 pmCEZ-DEN
1h 30mnonstop
Multiple Airlines Logo
6:55 am - 2:00 pmDEN-CEZ
7h 05m1 stop
$292Multiple Airlines
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Sat, Nov 15 - Mon, Nov 17
American Airlines Logo
7:30 am - 6:13 pmGJT-DEN
10h 43m1 stop
American Airlines Logo
10:43 am - 11:40 amDEN-GJT
24h 57m1 stop
$387American Airlines
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Wed, Oct 15 - Wed, Oct 22
American Airlines Logo
6:00 am - 10:04 pmDRO-DEN
40h 04m1 stop
American Airlines Logo
7:25 am - 6:29 pmDEN-DRO
11h 04m1 stop
$467American Airlines
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Everything you should know

Cheapest round-trip
$97
Overall average: $217
United Airlines
Thu 10/23Thu 10/23
COS - DEN • Non-stop
Cheapest one-way
$49
Typical prices: $151-289
United Airlines
Mon 10/20
COS - DEN • Non-stop
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Denver!
Useful Info

Good to know

Low seasonApril
Cheapest flight$49
Best time to beat the crowds but there is an average 4% increase in price.
Most popular time to fly and prices are also 14% lower on average.
Flight from Colorado Springs to Denver

Flights from Colorado to Denver: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from Colorado to Denver 
kristenFlew with United AirlinesASE-DENJul 2024
weather can cause delays, and pack light if you chose to carry-on
Verified travelerFlew with Air CanadaCOS-DENMar 2024
Make sure to have snacks and drinks with you if you need them.

FAQs for booking flights from Colorado to Denver

  • How does KAYAK find such low prices on flights from Colorado to Denver?

    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 Denver.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Denver from Colorado 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 Denver?

    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 to Denver with an airline and back to Colorado with another airline.

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

    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 to Denver from Colorado up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines serving from Colorado to Denver

 
Need help choosing which airline to fly with from Colorado to Denver? 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.
9.0
Denver Air ConnectionOverall score based on 16 reviews
9.0Comfort
8.2Entertainment
8.5Food
9.0Boarding
9.5Crew
Airline reviews

Great snacks and friendly people for check in at Pierre SD!

10.0 ExcellentAnonymous, Jul 2025PIR - DEN
Read more Denver Air Connection reviews

Great snacks and friendly people for check in at Pierre SD!

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

Near 4 hour flight with only 1 service. Had to use call button to request water. Internet and power not working until into flight. Internet would stop working during flight.

WiFi did not work. For as outrageous as these flights cost, when they’re advertised with certain services/ features they should be in working order

The Southwest employees (all two of them) were very nice and cheerful despite the fact the line to self-check a bag (simply drop it off) was hundreds of people long. Thank God I arrived early to the airport because I stood in this line for at least an hour. Once on the flight that had been delayed by an hour, we had no Wi-Fi and thus no entertainment. Finally, I hope the investor strong arm tactics against Southwest pay off in a short-term windfall to your C-Suite because the rest of you are screwed. I have been a faithful Southwest customer for 15 years due to everything you just got rid of. I'm flying to Idaho and Washington in October, both places I used to simply book with Southwest without a second thought now with Frontier (Washington) and United (Idaho) because they offer everything the "new" Southwest does but cheaper and at better times, destinations, etc. This really makes me sad...

Flights delayed by 4-6 hours. Boarding was a mess and unclear. Bags were not at arrival airport and had never even been put on the plane. No idea when I’ll get them. Don’t fly into Denver!

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 would have liked to arrive on time - not 5 hours late!

After a 3 hour layover in Denver my flight was delayed over 5 hours! No explanation; no assistance; no offer to provide compensation; no one at Southwest was willing to offer any assistance. 8 hours in the Denver airport - ridiculous!

1.5 hour delay, poor service, no compassion from the crew. Terrible experience

Our flight was diverted from being a non-stop to getting within 150 miles and requiring another plane. We heard 4 or 5 different versions from SW as to why we had to stop, then wait for a replacement plane. Five hour delay, weather did not come up as a single excuse.... communication was not clear and well explained. No one really took charge!

I understand stuff happens, but plane failures are likely due to lack of maintenance. Additionally, air conditioning wasn't working, no snack/drink service, no WiFi. Fortunately, the crew was communicative and light-hearted. United grabbed another plane and we were able to get to our destination.

Had to cancel first flight because Airporter Bus took over 3 hrs to get to airport which resulted in an extra $378 dollar fare . Is there anyway I can be reimbursed for initial fare since it was not my fault? Sent from my iPhone EJ Ledet

Excellent flight. Boarding was efficient and departure was on time. Smooth flight with on time arrival. Deplaning was also efficient.

Our flight was understandably diverted to a small regional airport in Laramie, Wyoming due to weather conditions, which I fully recognize and appreciate. However, the low rating stems from the experience that followed: passengers remained on board for over an hour without the option to deplane and stretch, despite the aircraft being stationary. Although the pilot opened the cabin door, only he was permitted to exit. Meanwhile, passengers grew increasingly uncomfortable as warm summer air entered the cabin through the open door, and being in the second row meant we were impacted immediately. While the flight attendants made efforts to keep everyone at ease, I believe allowing passengers to deplane briefly, given the extended delay, would have significantly improved the overall experience.

I never flew. Flight was canceled. DIA worst airport in the country. Avoid at all costs.

Very rough getting into denver. my kid threw up it was so rough.

Why wasn't this flight departure scheduled eith another crew so that it could leave on time? When we arrived in Denver we had so little time between flights we had run to the connecting flight. We should received some credit for the inconvenience.

I was supposed to be on business class at first class from Denver back to Miami due to weather changes. I missed my connection and it’s put on a flight to Fort Lauderdale. Instead of honoring my business class/1st class ticket, they put me in coach, but there were two first class seats open. I think it’s absolutely disgusting that I paid for first class $1300 ticket and they put me in economy and they had to open seats available and I have still not been refunded the difference. I ended up having to eat a snack box instead of the meal I was supposed to get and did not get home till 2 AM so I think that’s a little pathetic that I had to live off crackers for dinner And my poor dog ate some cheese and salami. Oh yes, apparently when they switched me to the new flight they forgot to mention I had a service dog

Excellent service despite turbulence during the flight. Flight attendants were remarkable!

Flight attendant moved my bag without notifying me and was rude to me when I asked him about it. There was no reason to move it.

Was very impressed they called to confirm he would be on the flight. Great customer service!

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.

Seats were new and comfortable. Staff was fine. Missed my connection due to weather -which wasn’t their fault- but got no help at all. Gate staff sent me to customer service, which was and stayed unstaffed. Sign with QR code directed me to call or chat. Chat was useless. Call was returned after an hour. No itinerary offered by Frontier could get me home in less than 30 hours. Rebooked with another airline and got a partial refund that came to about 10 percent of what I paid to get home.

The experience was good. No frills but I got there safe and sound and on time.

As every law enforcement agency I could imagine surrounded the plane and we didn’t disembark for 2 hours and then had to stick around for another hour to go get our personal belongings after leaving them behind and being bused away from the plane, it was scary and inconvenient. We were given no information as to why this was happening. Lack of communication with passengers was disappointing.

Frontier Airlines was AWFUL. I was an hour early for my flight and the lady refused to check me in. I had to purchase a whole new ticket with a different airline.

Late, terrible communication, horrible planning of passenger seating until the literal last minute. One of the worst flying experiences of my life. Y'all suck

First of all, we never got on the connecting flight to Denver. They delayed our flight for two hours. If we would have gotten on that flight, we would have been stuck in Denver for 13 hours. So we re- routed our flight for a straight through flight to Oklahoma two days later. THEN, they delayed that flight for two hours. After that we were able to finally get on our flight and come home. Frontier Airlines - one of the worst airlines I have ever been on.

Terrible communication with weather delay, lost baggage, near impossible to reach customer service

My tickets got canceled on me by your site and I didn't have a flight. Then you kept sending me emails on the status of q flight I didn't have tickets for.

Flight was late. Missed connecting in Denver. My new flight is more than 24 hours later and I have no room, vouchers, or compensation, and might also be bumped from the one tomorrow.

This was one of the first frontier airline flights this spring that wasn't delayed. It actually left on time. Some of the flight crew did not look happy, they didn't smile when the passengers were boarding or getting off the plane, and the passengers initiated greetings, not the staff. To me this was an odd experience to have with any flight/airline. I had a bad experience booking this flight. The price didn't solidify until late hours into the night. Ever time I purchased the ticket, I either received a denial email or an error because the price has changed, but it was never reflected on the flyfrontier or kayak websites until way after midnight on the date of travel. This caused me anxiety and irritation with the websites. Then I noticed a mishap with my name on my voucher as I went to check in, it was incorrect. When I proceeded to correct it, Frontier had no easy, let alone free, way to remedy it. I couldn't correct my name without a $75 charge, I couldn't cancel my voucher to repurchase it with the correct name without a $100 charge, because it was too close to departure. Then calling frontier was nearly impossible to remedy the situation with a human. It's already difficult to want to choose frontier because of all the upcharges, but you feel kinda trapped into doing so because it's the more affordable airline.

Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
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