HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
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 11/15. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — EYW
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Colorado to Key West with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 June 12, 2025.

Round-trip from

$231
(American Airlines)

One-way from

$188
(Mytrip)

Popular in

March

Cheapest in

August

Average price

$519
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 ($17 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2025
Search Deals

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 June 12, 2025.

This American Airlines deal was found by Cheapflights users on 6/11. 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 8/137:20 amDEN - EYW
1 stop7h 02mAmerican Airlines
Tue 8/191:13 pmEYW - DEN
1 stop7h 54mAmerican Airlines
Deal found 6/11$231
This Delta deal was found by Cheapflights users on 6/11. 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.
Thu 8/1410:41 amDEN - EYW
1 stop7h 31mDelta
Mon 8/186:22 pmEYW - DEN
1 stop7h 53mDelta
Deal found 6/11$289
This United Airlines deal was found by Cheapflights users on 6/10. 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 6/2411:59 pmDEN - EYW
1 stop10h 54mUnited Airlines
Tue 7/12:12 pmEYW - DEN
1 stop11h 09mUnited Airlines
Deal found 6/10$303
This American Airlines deal was found by Cheapflights users on 6/9. 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 12/36:13 amCOS - EYW
2 stops10h 25mAmerican Airlines
Sat 12/68:10 amEYW - COS
2 stops11h 21mAmerican Airlines
Deal found 6/9$320
This Mytrip deal was found by Cheapflights users on 6/9. 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.
Wed 7/2311:06 amDEN - EYW
1 stop26h 24mAllegiant Air
Sun 7/274:20 pmEYW - DEN
1 stop24h 55mAllegiant Air
Deal found 6/9$383
This Mytrip deal was found by Cheapflights users on 6/11. 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.
Thu 8/75:42 pmDEN - EYW
2 stops17h 25mMultiple Airlines
Sun 8/104:20 pmEYW - DEN
1 stop27h 34mMultiple Airlines
Deal found 6/11$396
This JetBlue deal was found by Cheapflights users on 6/11. 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.
Thu 10/3011:59 pmDEN - EYW
1 stop9h 23mJetBlue
Sun 11/212:07 pmEYW - DEN
1 stop12h 57mJetBlue
Deal found 6/11$398
This United Airlines deal was found by Cheapflights users on 6/11. 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 6/265:30 amCOS - EYW
2 stops10h 35mUnited Airlines
Mon 6/308:45 amEYW - COS
2 stops14h 10mUnited Airlines
Deal found 6/11$696

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 June 12, 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

Wed 8/13

7:20 am-4:22 pm

1 stop7h 02m

Key West

Tue 8/19

1:13 pm-7:07 pm

1 stop7h 54m

$231

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Thu 8/14

10:41 am-8:12 pm

1 stop7h 31m

Key West

Mon 8/18

6:22 pm-12:15 am

1 stop7h 53m

$289

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Tue 6/24

11:59 pm-12:53 pm

1 stop10h 54m

Key West

Tue 7/1

2:12 pm-11:21 pm

1 stop11h 09m

$303

Colorado SpringsKey West

COS - EYW

COSEYW

Colorado Springs

Wed 12/3

6:13 am-6:38 pm

2 stops10h 25m

Key West

Sat 12/6

8:10 am-5:31 pm

2 stops11h 21m

$320

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Wed 7/23

11:06 am-3:30 pm

1 stop26h 24m

Key West

Sun 7/27

4:20 pm-3:15 pm

1 stop24h 55m

$383

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Thu 8/7

5:42 pm-1:07 pm

2 stops17h 25m

Key West

Sun 8/10

4:20 pm-5:54 pm

1 stop27h 34m

$396

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Thu 10/30

11:59 pm-11:22 am

1 stop9h 23m

Key West

Sun 11/2

12:07 pm-11:04 pm

1 stop12h 57m

$398

Colorado SpringsKey West

COS - EYW

COSEYW

Colorado Springs

Thu 6/26

5:30 am-6:05 pm

2 stops10h 35m

Key West

Mon 6/30

8:45 am-8:55 pm

2 stops14h 10m

$696

Colorado SpringsKey West

COS - EYW

COSEYW

Colorado Springs

Sat 11/15

6:15 am-4:16 pm

1 stop8h 01m

$119

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Thu 12/4

8:33 am-1:39 pm

1 stop27h 06m

$147

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 17 results
1
2

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 June 12, 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 June 12, 2025.
Read through reviews of airlines operating flights from Colorado to Key West, such as Breeze Airways, Delta and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Breeze Airways
8.1
Very good
178 reviews

Food

6.7

Boarding

8.3

Comfort

8.2

Overall

8.1

Entertainment

6.6

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
Breeze Airways
8.1
Very good
178 reviews
Breeze Airways
8.1
Very good
178 reviews

Food

6.7

Boarding

8.3

Comfort

8.2

Overall

8.1

Entertainment

6.6

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
Delta
8.0
Very good
7,950 reviews
Breeze Airways
8.1
Very good
178 reviews

Food

6.7

Boarding

8.3

Comfort

8.2

Overall

8.1

Entertainment

6.6

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
United Airlines
7.4
Good
8,790 reviews
Breeze Airways
8.1
Very good
178 reviews

Food

6.7

Boarding

8.3

Comfort

8.2

Overall

8.1

Entertainment

6.6

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
Allegiant Air
7.3
Good
725 reviews
Breeze Airways
8.1
Very good
178 reviews

Food

6.7

Boarding

8.3

Comfort

8.2

Overall

8.1

Entertainment

6.6

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
American Airlines
7.2
Good
10,000 reviews
Breeze Airways
8.1
Very good
178 reviews

Food

6.7

Boarding

8.3

Comfort

8.2

Overall

8.1

Entertainment

6.6

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!

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 Allegiant Air, with whom users have recently found tickets for as low as $188. 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 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Colorado to Key West

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Miami flights
Newark to Fort Lauderdale flights
John F Kennedy Intl to Orlando flights
LaGuardia to Miami flights
Newark to Miami flights
LaGuardia to Fort Lauderdale flights
Newark to Orlando flights
John F Kennedy Intl to Fort Lauderdale flights
LaGuardia to Orlando flights
Los Angeles to Miami flights
Los Angeles to Orlando flights
Dallas/Fort Worth to Miami flights
John F Kennedy Intl to West Palm Beach flights
Philadelphia to Orlando flights
Baltimore to Fort Lauderdale flights
Baltimore to Miami flights
Dallas/Fort Worth to Orlando flights
O'Hare Intl to Orlando flights
Atlanta to Miami flights
Dulles Intl to Miami flights
Los Angeles to Fort Lauderdale flights
Dallas/Fort Worth to Fort Lauderdale flights
O'Hare Intl to Fort Lauderdale flights
John F Kennedy Intl to Tampa flights
Newark to Tampa flights
Boston to Orlando flights
Reagan-National to Miami flights
Dulles Intl to Orlando flights
Reagan-National to Orlando flights
O'Hare Intl to Miami flights
Philadelphia to Fort Lauderdale flights
Hobby to Miami flights
Atlanta to Fort Lauderdale flights
Philadelphia to Miami flights
Boston to Miami flights
Boston to Fort Lauderdale flights
Baltimore to Orlando flights
LaGuardia to West Palm Beach flights
LaGuardia to Tampa flights
Dulles Intl to Fort Lauderdale flights
Denver to Orlando flights
Providence to Orlando flights
Hobby to Orlando flights
Raleigh to Miami flights
Cleveland to Orlando flights
San Francisco to Miami flights
Newark to West Palm Beach flights
O'Hare Intl to Tampa flights
Islip to Orlando flights
George Bush Intcntl to Orlando flights

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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$235Average$549FlexibilityNo cancel feeOn-time71%
DeltaCheapest$236Average$448FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$357Average$589FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.