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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 10/28. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — EYW
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheap 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 July 31, 2025.

Round-trip from

$241
(American Airlines)

One-way from

$119
(Delta)

Popular in

March

Cheapest in

August

Average price

$406
From Colorado to Key West
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One-way flight from Colorado to Key West
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Highest demand for flights based on searches. 5% potential increase in price ($25 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find 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 July 31, 2025.

This American Airlines deal was found by Cheapflights users on 7/31. 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 11/88:50 amDEN - EYW
1 stop8h 39mAmerican Airlines
Sat 11/154:59 pmEYW - DEN
1 stop7h 20mAmerican Airlines
Deal found 7/31$231
This American Airlines deal was found by Cheapflights users on 7/31. 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 9/136:02 amCOS - EYW
2 stops10h 57mAmerican Airlines
Wed 9/2412:00 pmEYW - COS
2 stops12h 08mAmerican Airlines
Deal found 7/31$241
This Delta deal was found by Cheapflights users on 7/31. 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.
Sat 9/135:55 pmCOS - EYW
2 stops15h 00mDelta
Wed 9/242:00 pmEYW - COS
1 stop8h 39mDelta
Deal found 7/31$282
This Delta deal was found by Cheapflights users on 7/31. 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.
Wed 8/2012:10 pmDEN - EYW
1 stop6h 02mDelta
Tue 8/266:20 pmEYW - DEN
1 stop6h 35mDelta
Deal found 7/31$289
This United Airlines deal was found by Cheapflights users on 7/29. 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 12/166:00 amDEN - EYW
1 stop7h 09mUnited Airlines
Sat 12/204:05 pmEYW - DEN
1 stop9h 38mUnited Airlines
Deal found 7/29$365
This American Airlines deal was found by Cheapflights users on 7/28. 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 8/236:02 amDRO - EYW
1 stop7h 17mAmerican Airlines
Tue 8/261:13 pmEYW - DRO
2 stops11h 17mAmerican Airlines
Deal found 7/28$424
This United Airlines deal was found by Cheapflights users on 7/31. 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.
Sat 11/158:30 amCOS - EYW
2 stops28h 49mUnited Airlines
Sat 11/223:05 pmEYW - COS
3 stops24h 09mUnited Airlines
Deal found 7/31$640
This United Airlines deal was found by Cheapflights users on 7/30. 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 12/101:43 pmGUC - EYW
2 stops47h 26mUnited Airlines
Sat 12/133:02 pmEYW - GUC
2 stops31h 27mUnited Airlines
Deal found 7/30$856

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 July 31, 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

Sat 9/20

7:09 am-6:59 pm

2 stops9h 50m

Key West

Sat 9/27

11:25 am-10:09 pm

2 stops12h 44m

$241

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Wed 8/20

12:10 pm-8:12 pm

1 stop6h 02m

Key West

Tue 8/26

6:20 pm-10:55 pm

1 stop6h 35m

$289

Colorado SpringsKey West

COS - EYW

COSEYW

Colorado Springs

Fri 8/15

6:27 am-4:22 pm

1 stop7h 55m

Key West

Tue 8/19

11:26 am-6:20 pm

2 stops8h 54m

$319

Colorado SpringsKey West

COS - EYW

COSEYW

Colorado Springs

Sat 8/16

8:00 am-8:12 pm

2 stops10h 12m

Key West

Wed 8/20

2:00 pm-8:41 pm

1 stop8h 41m

$368

DurangoKey West

DRO - EYW

DROEYW

Durango La Plata County

Sat 8/23

6:02 am-3:19 pm

1 stop7h 17m

Key West

Tue 8/26

1:13 pm-10:30 pm

2 stops11h 17m

$424

Colorado SpringsKey West

COS - EYW

COSEYW

Colorado Springs

Sat 11/15

8:30 am-3:19 pm

2 stops28h 49m

Key West

Sat 11/22

3:05 pm-1:14 pm

3 stops24h 09m

$640

GunnisonKey West

GUC - EYW

GUCEYW

Gunnison

Wed 12/10

1:43 pm-3:09 pm

2 stops47h 26m

Key West

Sat 12/13

3:02 pm-8:29 pm

2 stops31h 27m

$856

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Tue 10/28

11:28 am-8:06 pm

1 stop6h 38m

$119

Colorado SpringsKey West

COS - EYW

COSEYW

Colorado Springs

Sat 11/15

5:45 am-4:16 pm

1 stop8h 31m

$119

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Tue 8/26

9:42 am-2:25 pm

2 stops26h 43m

$295

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 13 results
1
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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, August is the cheapest month in which you can book a flight from Colorado to Key West (average of $328). Flying from Colorado to Key West in March is currently the most expensive (average of $492). 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 July 31, 2025.

When flying from Colorado to Key West, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Key West

Get insights into the airlines that provide service to Key West. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Key West. Reviews last updated July 31, 2025.
Read through reviews of airlines operating flights from Colorado to Key West, such as Delta, United Airlines, and American Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,981 reviews

Food

7.3

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
2.0
Mediocre

Joseph,Aug 2023

MSP - MCO

Even if you have delta comfort plus, they will move your overhead bag. One of the perks for upgrading is that you have dedicated space for your carry on with comfort plus with delta. They moved my carry on luggage (3) compartments back and put in bags for other passengers that should have gone under their respective seats. When deboarding the plane, there was no help from anyone to retrieve my luggage back several rows. Delta is turning into pure garbage.
Delta
8.0
Very good
7,981 reviews
Delta
8.0
Very good
7,981 reviews

Food

7.3

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
2.0
Mediocre

Joseph,Aug 2023

MSP - MCO

Even if you have delta comfort plus, they will move your overhead bag. One of the perks for upgrading is that you have dedicated space for your carry on with comfort plus with delta. They moved my carry on luggage (3) compartments back and put in bags for other passengers that should have gone under their respective seats. When deboarding the plane, there was no help from anyone to retrieve my luggage back several rows. Delta is turning into pure garbage.
United Airlines
7.4
Good
8,900 reviews
Delta
8.0
Very good
7,981 reviews

Food

7.3

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
2.0
Mediocre

Joseph,Aug 2023

MSP - MCO

Even if you have delta comfort plus, they will move your overhead bag. One of the perks for upgrading is that you have dedicated space for your carry on with comfort plus with delta. They moved my carry on luggage (3) compartments back and put in bags for other passengers that should have gone under their respective seats. When deboarding the plane, there was no help from anyone to retrieve my luggage back several rows. Delta is turning into pure garbage.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,981 reviews

Food

7.3

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
2.0
Mediocre

Joseph,Aug 2023

MSP - MCO

Even if you have delta comfort plus, they will move your overhead bag. One of the perks for upgrading is that you have dedicated space for your carry on with comfort plus with delta. They moved my carry on luggage (3) compartments back and put in bags for other passengers that should have gone under their respective seats. When deboarding the plane, there was no help from anyone to retrieve my luggage back several rows. Delta is turning into pure garbage.

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.

  • 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 $119. 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, August is the cheapest month in which you can book a flight from Colorado to Key West (average of $328). Flying from Colorado to Key West in March is currently the most expensive (average of $492). 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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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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$231Average$522FlexibilityNo cancel feeOn-time71%
DeltaCheapest$236Average$380FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$357Average$587FlexibilityNo cancel feeOn-time69%

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