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Key West

$145+ 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 5/5. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — EYW
May 5 — May 121
Mon 5/5
Mon 5/12
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 April 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$241
(American Airlines)

One-way from

$145
(Delta)

Popular in

March

Cheapest in

September

Average price

$385
Provider with most accurate pricing for Denver Intl-Key West flight deals.
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Provider most trusted by Cheapflights users for Denver Intl-Key West flights.
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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. 7% potential increase in price ($33 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 30, 2025.

This Delta deal was found by Cheapflights users on 4/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1812:59 amDEN - EYW
1 stop8h 00mDelta
Tue 11/256:00 pmEYW - DEN
1 stop6h 15mDelta
Deal found 4/28$237
This American Airlines deal was found by Cheapflights users on 4/28. 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 8/211:59 pmDEN - EYW
2 stops10h 56mAmerican Airlines
Sat 8/912:50 pmEYW - DEN
2 stops11h 25mAmerican Airlines
Deal found 4/28$241
This American Airlines deal was found by Cheapflights users on 4/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/116:01 amCOS - EYW
2 stops11h 01mAmerican Airlines
Tue 6/1711:20 amEYW - COS
2 stops13h 02mAmerican Airlines
Deal found 4/29$320
This Trip.com deal was found by Cheapflights users on 4/29. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/136:00 amDEN - EYW
2 stops10h 05mMultiple Airlines
Thu 6/192:45 pmEYW - DEN
1 stop11h 14mMultiple Airlines
Deal found 4/29$376
This Mytrip deal was found by Cheapflights users on 4/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/134:53 pmDEN - EYW
2 stops20h 10mAllegiant Air
Thu 6/198:53 amEYW - DEN
2 stops24h 17mAllegiant Air
Deal found 4/29$396
This United Airlines deal was found by Cheapflights users on 4/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/1711:59 pmDEN - EYW
1 stop12h 01mUnited Airlines
Mon 7/216:45 pmEYW - DEN
1 stop17h 20mUnited Airlines
Deal found 4/28$403
This JetBlue deal was found by Cheapflights users on 4/28. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2411:09 pmDEN - EYW
1 stop10h 41mJetBlue
Sun 11/212:07 pmEYW - DEN
1 stop12h 57mJetBlue
Deal found 4/28$468
This United Airlines deal was found by Cheapflights users on 4/29. 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.
Wed 6/412:50 pmCOS - EYW
2 stops27h 15mUnited Airlines
Sat 6/76:45 pmEYW - COS
2 stops29h 06mUnited Airlines
Deal found 4/29$680

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 April 30, 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 5/27

9:06 am-4:40 pm

1 stop5h 34m

Key West

Tue 6/3

5:24 pm-10:59 pm

1 stop7h 35m

$260

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Mon 5/26

12:59 am-10:51 am

1 stop7h 52m

Key West

Tue 6/3

11:48 am-5:39 pm

1 stop7h 51m

$277

Colorado SpringsKey West

COS - EYW

COSEYW

Colorado Springs

Wed 6/11

6:01 am-7:02 pm

2 stops11h 01m

Key West

Tue 6/17

11:20 am-10:22 pm

2 stops13h 02m

$320

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Fri 6/13

6:00 am-6:05 pm

2 stops10h 05m

Key West

Thu 6/19

2:45 pm-11:59 pm

1 stop11h 14m

$376

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Fri 6/13

4:53 pm-3:03 pm

2 stops20h 10m

Key West

Thu 6/19

8:53 am-7:10 am

2 stops24h 17m

$396

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Fri 7/25

11:59 pm-8:00 am

1 stop6h 01m

Key West

Mon 7/28

6:45 pm-6:20 pm

1 stop25h 35m

$436

Colorado SpringsKey West

COS - EYW

COSEYW

Colorado Springs

Wed 6/4

12:50 pm-6:05 pm

2 stops27h 15m

Key West

Sat 6/7

6:45 pm-9:51 pm

2 stops29h 06m

$680

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Mon 5/5

12:55 am-11:30 am

1 stop8h 35m

$145

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Tue 5/6

7:00 am-6:49 pm

2 stops9h 49m

$150

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Wed 6/25

6:05 pm-8:00 am

1 stop11h 55m

$232

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 11 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 $493). 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 April 30, 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.

Rainfall in Key West by month

Plan your trip to Key West by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Key West ranges from 1.5 - 6.7 inches per month. September is typically the wettest month, when rainfall can reach 6.7 in. February is typically the driest time to visit Key West when rainfall is around 1.5 in.

Temperature in Key West by month

Plan your trip to Key West by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Key West, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 69.8 F).

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 April 30, 2025.
Read through reviews of airlines operating flights from Colorado to Key West, such as Delta, United Airlines and Allegiant Air. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,936 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

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
7,936 reviews
Delta
8.0
Very good
7,936 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

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
8,696 reviews
Delta
8.0
Very good
7,936 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

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.
Allegiant Air
7.3
Good
734 reviews
Delta
8.0
Very good
7,936 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

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
7,936 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

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 $145. 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 $493). 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 April 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$236Average$564FlexibilityNo cancel feeOn-time71%
DeltaCheapest$236Average$439FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$357Average$588FlexibilityNo cancel feeOn-time69%

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