$147 Find Cheap Flights from Key West to Colorado - Compare and Save

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 10/11. 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.
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Cheap Flights from Key West to Colorado

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Denver
Denver2 stops$280
Montrose
Montrose2 stops$658
Gunnison
Gunnison1 stop$745
Denver
Denver2 stops$280
Montrose
Montrose2 stops$658
Gunnison
Gunnison1 stop$745

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

Thu, Sep 24 - Sun, Sep 27
Multiple Airlines Logo
10:59 am - 12:15 am
EYW
-
DEN
15h 16m
2 stops
Multiple Airlines Logo
6:56 pm - 12:19 pm
DEN
-
EYW
15h 23m
1 stop
$280Multiple Airlines
Thu, Sep 24 - Sun, Sep 27
Multiple Airlines Logo
10:59 am - 12:15 am
EYW
-
DEN
15h 16m
2 stops
Multiple Airlines Logo
6:56 pm - 12:19 pm
DEN
-
EYW
15h 23m
1 stop
$281Multiple Airlines
Thu, Sep 24 - Sun, Sep 27
Multiple Airlines Logo
12:01 pm - 8:08 am
EYW
-
DEN
22h 07m
1 stop
Multiple Airlines Logo
6:56 pm - 12:19 pm
DEN
-
EYW
15h 23m
1 stop
$298Multiple Airlines
Thu, Sep 24 - Sun, Sep 27
Multiple Airlines Logo
12:01 pm - 8:08 am
EYW
-
DEN
22h 07m
1 stop
Multiple Airlines Logo
6:56 pm - 12:19 pm
DEN
-
EYW
15h 23m
1 stop
$298Multiple Airlines
Fri, Dec 11 - Wed, Dec 16
American Airlines Logo
8:00 am - 1:30 pm
EYW
-
DEN
7h 30m
1 stop
American Airlines Logo
10:13 am - 9:45 pm
DEN
-
EYW
9h 32m
1 stop
$357American Airlines
Thu, Dec 10 - Sun, Dec 13
Delta Logo
6:02 pm - 11:24 pm
EYW
-
DEN
7h 22m
1 stop
Delta Logo
7:00 am - 5:07 pm
DEN
-
EYW
8h 07m
1 stop
$375Delta
Thu, Dec 10 - Sun, Dec 13
Delta Logo
6:02 pm - 11:24 pm
EYW
-
DEN
7h 22m
1 stop
Delta Logo
8:00 am - 5:07 pm
DEN
-
EYW
7h 07m
1 stop
$375Delta
Fri, Dec 11 - Sun, Dec 13
Delta Logo
6:02 pm - 11:24 pm
EYW
-
DEN
7h 22m
1 stop
Delta Logo
7:00 am - 5:07 pm
DEN
-
EYW
8h 07m
1 stop
$375Delta
Thu, Sep 24 - Sun, Sep 27
American Airlines Logo
1:47 pm - 11:51 pm
EYW
-
DEN
12h 04m
2 stops
American Airlines Logo
11:59 pm - 1:17 pm
DEN
-
EYW
11h 18m
2 stops
$431American Airlines
Fri, Dec 11 - Wed, Dec 16
American Airlines Logo
12:50 pm - 8:10 pm
EYW
-
DEN
9h 20m
1 stop
American Airlines Logo
6:45 am - 7:34 pm
DEN
-
EYW
10h 49m
2 stops
$432American Airlines
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 January, when tickets cost $298 (return) on average. On the other hand, the most expensive months are March and June, when the average cost of round-trip tickets is $883 and $577 respectively.

Good to know

Low season

February

Cheapest flight

$147
Best time to beat the crowds with an average 25% drop in price.
Most popular time to fly with an average 19% 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.

Reviews of the top airlines flying 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.
7.8
DeltaOverall score based on 8483 reviews
8.1Boarding
7.8Comfort
7.8Entertainment
8.5Crew
7.2Food
Airline reviews

Smooth flight. Left on time, and got in 15 minutes early. Onboard video was great

10.0 ExcellentCharles, May 2026
DTW - DEN
Read more Delta reviews

Smooth flight. Left on time, and got in 15 minutes early. Onboard video was great

Crew was great. Near on time departure and early arrival. Snacks are always meh. Not a fan of the "pay for everything including miles " proposal unless base flight rate going to be 100 bucks.

We had a lot of really rough weather but that was not Delta's fault. Pilot was amazing.

The boarding process needs to be refined. Sometimes the gate crew call out the boarding zone, and then flip to the monitor to show which zones are boarding. So unless everyone is gathered around to see the monitor there is usually confusion as wi which zones are boarding.

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

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.

The young man who was our flight attendant in first class was lazy and did not do his job well at all. Never offered drinks upon boarding - actually I take that back... said "are you okay with water" as if I do not want to get you anything else, only passed the snacks around once, got my drink order wrong and then never offered a second round of drinks. He was the worst I have ever seen on Delta and we fly a lot.

Airline lost my luggage and set me back a day worth of travel due to having to stay in Denver to wait on my luggage

I'm a larger, athletic guy (6'2", 260lbs powerlifter) and I found the seats incredibly uncomfortable with minimal leg room, especially in a window seat. Now, I full understand that being smaller may change my view but even if I was 80lbs less, my legs would be the same size and I was sandwiched between my seat and the seat in front of me.

Everything was delayed and the staff sent me to the wrong gate, causing me to miss one of my flights. I arrived at my destination 6 hours later than I was supposed to.

I have never been assaulted they way I was today in Charlotte - shame on American

On the return flight, arriving in Denver we sat on the tarmac in Denver for over 20 minutes.

The flight was fine. It's the satellite terminal that supports American eagle flights is what sucks. There is only one food option and everything there is way overpriced. I mean I know it's airport pricing, but it's even crazier than that. I bought a sandwich in a plastic container for $18.

Don't change gate multiple times make people run across the airport. Announce delays in a timely manner. Have maintenance crew ready. Don't delay and keep passengers on the plane for 3 hrs. on tarmac.

My seat tv didn’t work the whole trip. And the seat space is too small despite being seated at the front.

Flight was delayed leaving Dallas. Arrived about 2 hours later than scheduled.

We were delayed for a “couple of maintenance issues.” They were resolved rather quickly but a computer glitch caused someone in the airport to have to bring a physical copy of the paperwork so we could leave. I don’t know where they had to drive from to get to our plane but it took forever & we were 1 1/2 hrs late in leaving. The flight itself was fine.

Because the plane was 90 degrees F, they would not let us board. I wish they had, because it meant we were delayed. It's Texas, of course it's hot. We would have survived.

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

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

Information on your arrival and departure airports