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Key West

$129+ Cheap flights from Colorado to Key West (EYW)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/1. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — EYW
Feb 27 — Mar 61
Fri 2/27
Fri 3/6
1 adult, Economy
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Cheap flight deals from Colorado to Key West

Cheapest flights from Colorado to Key West
Explore the most affordable flight options available from Colorado to Key West. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 28, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/43:36 pm
DEN
-
EYW
2 stops15h 30m
Multiple Airlines
Mon 3/91:06 pm
EYW
-
DEN
1 stop21h 14m
Multiple Airlines
Deal found 1/27$219
This Kiwi.com deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/43:36 pm
DEN
-
EYW
2 stops15h 30m
Multiple Airlines
Tue 3/101:01 pm
EYW
-
DEN
1 stop12h 12m
Multiple Airlines
Deal found 1/27$223
This United Airlines deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/86:00 am
DEN
-
EYW
1 stop6h 51m
United Airlines
Wed 4/152:35 pm
EYW
-
DEN
1 stop9h 40m
United Airlines
Deal found 1/26$231
This American Airlines deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/810:36 am
DEN
-
EYW
2 stops10h 21m
American Airlines
Wed 4/156:45 am
EYW
-
DEN
1 stop6h 58m
American Airlines
Deal found 1/27$236
This Delta deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/3112:55 am
DEN
-
EYW
1 stop7h 53m
Delta
Tue 4/76:25 pm
EYW
-
DEN
1 stop7h 44m
Delta
Deal found 1/25$237
This American Airlines deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/178:00 am
DEN
-
EYW
1 stop8h 24m
American Airlines
Wed 2/251:55 pm
EYW
-
DEN
2 stops10h 42m
American Airlines
Deal found 1/26$249
This Kiwi.com deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/2211:59 pm
DEN
-
EYW
1 stop10h 27m
Multiple Airlines
Fri 2/271:06 pm
EYW
-
DEN
1 stop20h 49m
Multiple Airlines
Deal found 1/27$253
This American Airlines deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/236:00 am
DEN
-
EYW
1 stop8h 24m
American Airlines
Fri 2/274:40 pm
EYW
-
DEN
1 stop8h 00m
American Airlines
Deal found 1/26$257
This United Airlines deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/96:00 am
DEN
-
EYW
1 stop7h 15m
United Airlines
Tue 6/162:30 pm
EYW
-
DEN
1 stop10h 58m
United Airlines
Deal found 1/26$259
This American Airlines deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/36:00 am
COS
-
EYW
2 stops14h 37m
American Airlines
Wed 4/86:45 am
EYW
-
COS
2 stops11h 30m
American Airlines
Deal found 1/26$306
This American Airlines deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/26:00 am
COS
-
EYW
1 stop8h 24m
American Airlines
Fri 3/63:51 pm
EYW
-
COS
2 stops10h 08m
American Airlines
Deal found 1/26$326
This American Airlines deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/106:12 am
COS
-
EYW
1 stop6h 06m
American Airlines
Wed 2/182:45 pm
EYW
-
COS
1 stop9h 25m
American Airlines
Deal found 1/27$336

Find flight deals from Colorado to Key West

Keep the following information in mind while searching for Colorado to Key West flight deals. Data was last updated January 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$219
(Kiwi.com)

One-way from

$129
(American Airlines)

Popular in

March

Cheapest in

August

Average price

$357
Provider with most accurate pricing for Denver Intl-Key West flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-Key West flights.
Search Deals
From Colorado to Key West
Search Deals
One-way flight from Colorado to Key West
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($21 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Colorado to Key West that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 28, 2026.
Use the filters below to find and compare flights from Colorado to Key West that are best for you.

Fly from

Colorado

Fly to

Key West

Route

Depart

Return

Price

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Wed 4/8

6:00 am-2:51 pm

1 stop6h 51m

Key West

Wed 4/15

2:35 pm-10:15 pm

1 stop9h 40m

$231

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Tue 5/5

12:55 am-10:50 am

1 stop7h 55m

Key West

Tue 5/12

6:00 pm-11:51 pm

1 stop7h 51m

$237

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Tue 3/31

12:55 am-10:48 am

1 stop7h 53m

Key West

Tue 4/7

6:25 pm-12:09 am

1 stop7h 44m

$237

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Mon 3/2

8:00 am-4:24 pm

1 stop6h 24m

Key West

Thu 3/5

1:55 pm-7:59 pm

1 stop8h 04m

$257

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Mon 2/23

6:00 am-4:24 pm

1 stop8h 24m

Key West

Fri 2/27

4:40 pm-10:40 pm

1 stop8h 00m

$257

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Sun 2/22

6:00 am-4:24 pm

1 stop8h 24m

Key West

Fri 2/27

1:55 pm-10:40 pm

2 stops10h 45m

$262

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Wed 3/18

6:00 am-5:45 pm

1 stop9h 45m

Key West

Wed 3/25

6:28 pm-12:30 am

1 stop8h 02m

$283

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Fri 4/3

11:47 am-10:37 pm

1 stop8h 50m

Key West

Wed 4/8

6:45 am-11:43 am

1 stop6h 58m

$283

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Thu 4/9

6:00 am-4:42 pm

1 stop8h 42m

Key West

Thu 4/16

4:38 pm-11:57 pm

1 stop9h 19m

$298

Colorado SpringsKey West

COS - EYW

COSEYW

Colorado Springs

Fri 4/3

6:00 am-10:37 pm

2 stops14h 37m

Key West

Wed 4/8

6:45 am-4:15 pm

2 stops11h 30m

$306

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

Showing 1-10 of 28 results
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Best time to book a flight from Colorado to Key West

Have a flexible travel schedule? Discover the best time to fly to Key West from Colorado with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from Colorado to Key West?

Currently, April is the cheapest month in which you can book a flight from Colorado to Key West (average of $198). Flying from Colorado to Key West in June is currently the most expensive (average of $283). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Colorado to Key West. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Key West from Colorado?

    For a flight from Colorado to Key West, you will be flying into Key West. Key West (EYW) is just 2.6 mi from the center of the city.

  • How long is the flight from Colorado to Key West?

    For as low as $257, United Airlines can have you in Key West from Colorado in 6h 24m. The distance from Colorado to Key West is about 1696 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Colorado to Key West one-way?

    The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as $79. However, be on the lookout for offers from American Airlines and United Airlines, as they are both options that can get you from Colorado to Key West for a low price.

  • What are the most popular routes from Colorado to Key West?

    When deciding which route to take from Colorado to Key West consider Denver Intl - Key West, Colorado Springs - Key West or Durango La Plata County - Key West as they are the most popular.

  • Can I find deals for flights from Colorado to Key West that include hotel bookings?

    Yes. In addition to deals on Colorado to Key West flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Colorado to Key West?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Colorado to Key West.

  • Can I find deals for business class flights from Colorado to Key West?

    Yes. Cheapflights offers flight deals from Colorado to Key West by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Colorado to Key West?

    Currently, April is the cheapest month in which you can book a flight from Colorado to Key West (average of $198). Flying from Colorado to Key West in June is currently the most expensive (average of $283). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Colorado to Key West

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Colorado to Key West

Discover the top 3 airlines that operate flights from Colorado to Key West. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$230Average$481FlexibilityNo cancel feeOn-time71%
DeltaCheapest$236Average$348FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$277Average$506FlexibilityNo cancel feeOn-time69%

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