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Key West

$119+ 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 2/2. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — EYW
Jan 14 — Jan 211
Wed 1/14
Wed 1/21
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 December 15, 2025.

This United Airlines deal was found by Cheapflights users on 12/14. 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 12/246:00 amDEN - EYW
1 stop7h 12mUnited Airlines
Wed 12/311:25 pmEYW - DEN
1 stop8h 03mUnited Airlines
Deal found 12/14$324
This American Airlines deal was found by Cheapflights users on 12/14. 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 12/245:00 amDEN - EYW
2 stops12h 22mAmerican Airlines
Wed 12/314:40 pmEYW - DEN
1 stop7h 51mAmerican Airlines
Deal found 12/14$370
This Kiwi.com deal was found by Cheapflights users on 12/14. 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 12/2110:46 amDEN - EYW
1 stop24h 57mMultiple Airlines
Tue 1/612:20 pmEYW - DEN
2 stops31h 43mMultiple Airlines
Deal found 12/14$372
This United Airlines deal was found by Cheapflights users on 12/15. 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.
Thu 12/257:45 amDEN - EYW
1 stop6h 03mUnited Airlines
Wed 12/315:10 pmEYW - DEN
1 stop9h 05mUnited Airlines
Deal found 12/15$374
This Kiwi.com deal was found by Cheapflights users on 12/14. 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.
Thu 12/1810:46 amDEN - EYW
1 stop24h 57mMultiple Airlines
Tue 1/612:20 pmEYW - DEN
2 stops25h 34mMultiple Airlines
Deal found 12/14$386
This American Airlines deal was found by Cheapflights users on 12/15. 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.
Sat 12/2011:59 pmDEN - EYW
2 stops9h 07mAmerican Airlines
Thu 12/258:00 amEYW - DEN
1 stop7h 19mAmerican Airlines
Deal found 12/15$395
This United Airlines deal was found by Cheapflights users on 12/14. 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.
Thu 12/186:00 amDEN - EYW
1 stop9h 02mUnited Airlines
Tue 12/2312:22 pmEYW - DEN
1 stop9h 24mUnited Airlines
Deal found 12/14$398
This Kiwi.com deal was found by Cheapflights users on 12/14. 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.
Thu 12/1810:46 amDEN - EYW
1 stop24h 57mMultiple Airlines
Mon 1/51:10 pmEYW - DEN
2 stops24h 16mMultiple Airlines
Deal found 12/14$399
This Delta deal was found by Cheapflights users on 12/13. 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.
Sun 12/147:00 amDEN - EYW
1 stop8h 15mDelta
Sun 12/2111:47 amEYW - DEN
1 stop7h 31mDelta
Deal found 12/13$402
This American Airlines deal was found by Cheapflights users on 12/14. 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 12/235:00 amDEN - EYW
2 stops10h 09mAmerican Airlines
Mon 12/292:28 pmEYW - DEN
1 stop7h 43mAmerican Airlines
Deal found 12/14$403
This American Airlines deal was found by Cheapflights users on 12/13. 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.
Sun 12/148:30 amDEN - EYW
1 stop6h 27mAmerican Airlines
Sun 12/211:46 pmEYW - DEN
2 stops10h 15mAmerican Airlines
Deal found 12/13$407
This United Airlines deal was found by Cheapflights users on 12/12. 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.
Sun 12/286:23 pmCOS - EYW
2 stops19h 25mUnited Airlines
Thu 1/112:22 pmEYW - COS
1 stop11h 28mUnited Airlines
Deal found 12/12$832

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 December 15, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$212
(Kiwi.com)

One-way from

$119
(Delta)

Popular in

March

Cheapest in

August

Average price

$427
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. 4% potential increase in price ($16 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 15, 2025.
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

Tue 2/17

6:20 am-3:56 pm

1 stop7h 36m

Key West

Wed 2/25

1:36 pm-8:15 pm

1 stop8h 39m

$231

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Mon 2/16

12:59 am-10:59 am

1 stop8h 00m

Key West

Tue 2/24

6:07 pm-10:48 pm

1 stop6h 41m

$237

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Sun 2/22

12:59 am-1:30 pm

2 stops10h 31m

Key West

Fri 2/27

1:06 pm-7:55 am

1 stop20h 49m

$253

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Wed 2/11

11:59 pm-3:31 pm

1 stop13h 32m

Key West

Tue 2/17

1:01 pm-2:06 pm

1 stop27h 05m

$256

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Wed 2/11

10:50 am-7:40 pm

1 stop6h 50m

Key West

Wed 2/18

6:07 pm-12:25 am

1 stop8h 18m

$260

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Thu 1/22

9:41 am-9:37 pm

1 stop9h 56m

Key West

Mon 1/26

3:52 pm-6:59 pm

1 stop29h 07m

$267

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Thu 2/12

11:38 am-10:11 am

2 stops20h 33m

Key West

Tue 2/17

1:01 pm-2:06 pm

1 stop27h 05m

$272

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Tue 2/10

12:00 pm-7:40 pm

1 stop5h 40m

Key West

Tue 2/17

6:07 pm-12:25 am

1 stop8h 18m

$288

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Wed 2/11

7:50 am-4:24 pm

1 stop6h 34m

Key West

Wed 2/18

6:45 am-1:56 pm

2 stops9h 11m

$299

Colorado SpringsKey West

COS - EYW

COSEYW

Colorado Springs

Wed 1/7

6:12 am-7:10 pm

2 stops10h 58m

Key West

Sat 1/10

7:15 am-5:41 pm

2 stops12h 26m

$307

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/12

Showing 1-10 of 23 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 $282). 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.

What is the cheapest time of day to fly from CO to EYW?

Find hourly flight availability from Colorado to Key West. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 15, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 27% on flights from Colorado to Key West by exploring options for tickets in the evening.

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 $231, American Airlines can have you in Key West from Colorado in 7h 36m. 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 American Airlines, with whom users have recently found tickets for as low as $99. However, be on the lookout for offers from Delta 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 Gunnison - 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 $282). 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 December 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$230Average$486FlexibilityNo cancel feeOn-time71%
DeltaCheapest$236Average$349FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$284Average$533FlexibilityNo cancel feeOn-time69%

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