$159 Find Cheap Flights from Key West to Colorado

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Key West to Colorado departing on 9/29. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Colorado

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Key West to Colorado, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Key West to Colorado, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Key West to Colorado

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Denver
Denver1 stop$236
Gunnison
Gunnison2 stops$591
Denver
Denver1 stop$236
Gunnison
Gunnison2 stops$591

Book Cheap Key West to Colorado Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Key West to Colorado 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 Key West to Colorado

Tue, Oct 14 - Tue, Oct 21
American Airlines Logo
5:47 pm - 10:56 pmEYW-DEN
7h 09m1 stop
American Airlines Logo
5:45 am - 7:22 pmDEN-EYW
11h 37m2 stops
$236American Airlines
Find Deal
Tue, Oct 14 - Tue, Oct 21
Multiple Airlines Logo
11:45 am - 5:09 pmEYW-DEN
7h 24m1 stop
Multiple Airlines Logo
11:59 pm - 10:07 amDEN-EYW
8h 08m1 stop
$268Multiple Airlines
Find Deal
Tue, Dec 23 - Thu, Jan 1
American Airlines Logo
4:40 pm - 10:31 pmEYW-DEN
7h 51m1 stop
American Airlines Logo
6:44 am - 5:55 pmDEN-EYW
9h 11m1 stop
$300American Airlines
Find Deal
Tue, Dec 23 - Thu, Jan 1
American Airlines Logo
4:03 pm - 11:54 pmEYW-DEN
9h 51m2 stops
American Airlines Logo
6:44 am - 5:55 pmDEN-EYW
9h 11m1 stop
$305American Airlines
Find Deal
Fri, Oct 3 - Tue, Oct 7
Multiple Airlines Logo
9:57 am - 8:49 amEYW-DEN
24h 52m1 stop
Multiple Airlines Logo
11:59 pm - 10:07 amDEN-EYW
8h 08m1 stop
$306Multiple Airlines
Find Deal
Fri, Oct 3 - Tue, Oct 7
Multiple Airlines Logo
8:55 am - 9:31 pmEYW-DEN
14h 36m2 stops
Multiple Airlines Logo
11:59 pm - 10:07 amDEN-EYW
8h 08m1 stop
$319Multiple Airlines
Find Deal
Fri, Oct 3 - Mon, Oct 6
Delta Logo
2:00 pm - 8:08 pmEYW-DEN
8h 08m1 stop
Delta Logo
12:50 am - 11:27 amDEN-EYW
8h 37m1 stop
$369Delta
Find Deal
Sat, Sep 27 - Mon, Sep 29
Delta Logo
6:00 pm - 9:52 pmEYW-DEN
5h 52m1 stop
Delta Logo
12:59 am - 10:55 amDEN-EYW
7h 56m1 stop
$399Delta
Find Deal
Sun, Dec 21 - Wed, Dec 31
United Airlines Logo
4:10 pm - 8:24 pmEYW-GUC
30h 14m2 stops
United Airlines Logo
1:30 pm - 11:41 amGUC-EYW
20h 11m2 stops
$591United Airlines
Find Deal
Tue, Dec 23 - Wed, Dec 31
United Airlines Logo
4:10 pm - 2:46 pmEYW-GUC
24h 36m2 stops
United Airlines Logo
1:30 pm - 11:41 amGUC-EYW
20h 11m2 stops
$619United Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Key West to Colorado flights

Get data-powered insights and trends into flights from Key West to Colorado to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Key West to Colorado?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Key West to Colorado, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Key West to Colorado is April, when tickets cost $297 (return) on average. On the other hand, the most expensive months are July and June, when the average cost of round-trip tickets is $557 and $506 respectively.

What’s the cheapest day of the week to fly from Key West to Colorado?

The average price of all round-trip flights from Key West to Colorado clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Colorado on a Wednesday and more expensive on a Sunday. On your return trip to Key West, you should consider flying back on a Wednesday, and avoid Thursdays for better deals.

Good to know

Low seasonAugust
Cheapest flight$159
Best time to beat the crowds with an average 26% drop in price.
Most popular time to fly with an average 25% increase in price.
Flight from Key West to Denver

FAQs - booking Colorado flights

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

    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 Key West to Colorado.

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

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

    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 Key West to Colorado 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 Key West to Colorado?

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

  • What is the cheapest time of day to fly to Colorado?

    The cheapest time of day to fly to Colorado is generally at night, when round-trip flights cost $327 on average. Morning departures are around 9% more expensive than evening flights, on average. The most expensive time of day to fly to Colorado is generally in the morning, which is peak travel time and where the average cost of a ticket is $428.

Reviews of the top 3 airlines serving from Key West to Colorado

 
See real verified KAYAK customer reviews for airlines flying from Key West to Colorado. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Key West to Colorado? 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.
7.9
DeltaOverall score based on 7954 reviews
7.9Comfort
7.3Food
8.5Crew
8.2Boarding
7.9Entertainment
Airline reviews

Really low quality food especially for an international flight. The crew also was surprisingly unpleasant except couple of ladies. I know we were not in first class but that’s no reason to treat customers as less.

8.0 ExcellentOlaf, Sep 2025FLL - ATL
Read more Delta reviews

Really low quality food especially for an international flight. The crew also was surprisingly unpleasant except couple of ladies. I know we were not in first class but that’s no reason to treat customers as less.

For a 69 year old with health problems I had the worse experience, no wheelchair when I entered a lady told me to sit and wait while a gentleman told me I had to walk to the Delta station, which I did. I had a carry on and a bag, and I was traveling with my service dog, which was on his carrier and the lady charged me for my carry on luggage, beside all the waiting cause of the delay, I had to walk to get my luggage cause no wheelchair showed up, I am so disappointed. I will get in touch with the company. I got home at 3:00 am, not good for my health situation.

Flight was canceled, and no effort was made to help with rebooking, no hotel vouchers, no car transportation and minimal food voucher and most places for food were closed by the time the voucher was given. Waited for 3 hours for bags. Simply the worst travel experience I have ever had

Flight was an hour late, who knows why. It was OK, nothing outstanding.

Excellent check-in. Crew was good. Excellent communication from flight deck.

Amazing flight! I have never noticed the uniforms of the attendants before in twenty years of flying except today when one female had the most amazing dress on. It was beautifully designed and showed she was in charge. I never dreamed I would google who designed Delta uniforms . The ultimate compliment is when another woman admires your outfit. . I hope your designer puts it on the market

My flight was 6 pm 6/6. Every hour they delayed it again - air condition issues then no pilot then the crew had worked too many hours and cancelled the flight at 11 pm. Sent customers to NJ a 45 minutes uber ride to a hotel. Had to be back by 5 am for a 7 am flight and again no pilot etc with another three hours of delays.

Delta flight was on time, seats were comfortable, and crew was nice.

This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.

The worst part was I was NOT allowed in the lounge even though I was holding a first class ticket and have a premium American Express card. I have flown Business or First Class with many airlines. Delta is the ONLY one who does not extend this courtesy to anyone except people who hold the very expensive American Express card. As a result, I won’t fly Delta if I have any other choice.

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.

We will be writing a long, detailed letter to corporate about our awful experience with American airlines.

Our bags took a long time to get unloaded once we landed.

Internet was a bit expensive and did not work ask that week otherwise a good flight

Food was ok, but not as good as I have had before on AA.

Pretty good. The food was just mediocre, the boarding and crew were good.

It was very difficult to stretch my knee out and I am very short. I also had a torn tendon in my knee which made it extra uncomfortable anyways. My husband is 6'2" and I can't imagine him flying in that plane.

It was one of my worst flight ever. First they were changing the gate for at least 4 times, changing from gate D7 to D12 to D44. Considering the size of the Miami Airport, we are talking about long distance and the train at the airport was not working. Then the flight was delayed around one hour. Then finally we boarded into the plane and when everybody was seated, there was an announcement that there is an issue with one of the tire of the plane, so we all had to get out of the plane with our belongings, to replace the tire. So we had around 2.5-hour delay

I was late from Jacksonville, FL but the limited interaction I had with the Philly crew was great.

The delays and cancellations kept me stuck in Miami for an additional 24 hours, and the whole thing seemed extremely disorganized

The flight to Tokyo AA61 took off about two hours late, but then had to turn back. By that time the crew had to be replaced. Then they kept promising to take off in an hour, then in 3, then switch to the next day.

Everything you need to know for your flight from Key West to Colorado

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.