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$132+ Cheap flights from Key West (EYW) to Colorado

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 11/11. Fares are subject to change and may not be available on all flights or dates of travel.
EYW — DEN
Nov 28 — Dec 51
Fri 11/28
Fri 12/5
1 adult, Economy
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Cheap flight deals from Key West to Colorado

Keep the following information in mind while searching for Key West to Colorado flight deals. Data was last updated October 29, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$231
(United Airlines)

One-way from

$132
(Kiwi.com)

Popular in

July

Cheapest in

April

Average price

$358
Provider with most accurate pricing for Key West-Denver Intl flight deals.
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Provider most trusted by Cheapflights users for Key West-Denver Intl flights.
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From Key West to Colorado
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One-way flight from Key West to Colorado
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Highest demand for flights based on searches. 16% potential increase in price ($73 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Key West to Colorado

Cheapest flights from Key West to Colorado
Explore the most affordable flight options available from Key West to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 29, 2025.

This United Airlines deal was found by Cheapflights users on 10/29. 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.
Sat 12/132:42 pmEYW - DEN
1 stop9h 29mUnited Airlines
Tue 1/136:00 amDEN - EYW
1 stop7h 17mUnited Airlines
Deal found 10/29$231
This American Airlines deal was found by Cheapflights users on 10/29. 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.
Fri 12/196:32 pmEYW - DEN
1 stop9h 16mAmerican Airlines
Wed 1/1411:29 amDEN - EYW
1 stop8h 18mAmerican Airlines
Deal found 10/29$257
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/1310:47 amEYW - DEN
2 stops37h 02mMultiple Airlines
Tue 1/1311:38 amDEN - EYW
1 stop20h 31mMultiple Airlines
Deal found 10/29$269
This American Airlines deal was found by Cheapflights users on 10/27. 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 11/254:10 pmEYW - DEN
1 stop9h 07mAmerican Airlines
Tue 12/27:49 amDEN - EYW
1 stop8h 02mAmerican Airlines
Deal found 10/27$284
This American Airlines deal was found by Cheapflights users on 10/28. 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.
Thu 12/112:31 pmEYW - MTJ
1 stop7h 17mAmerican Airlines
Mon 12/157:00 amMTJ - EYW
1 stop7h 07mAmerican Airlines
Deal found 10/28$294
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/188:55 amEYW - DEN
1 stop16h 09mMultiple Airlines
Wed 1/146:50 amDEN - EYW
2 stops24h 16mMultiple Airlines
Deal found 10/29$310
This American Airlines deal was found by Cheapflights users on 10/29. 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.
Sat 12/137:00 amEYW - DEN
2 stops10h 49mAmerican Airlines
Tue 1/1312:52 pmDEN - EYW
2 stops9h 04mAmerican Airlines
Deal found 10/29$333
This American Airlines deal was found by Cheapflights users on 10/28. 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.
Wed 12/102:39 pmEYW - MTJ
1 stop6h 40mAmerican Airlines
Sun 12/147:00 amMTJ - EYW
1 stop7h 26mAmerican Airlines
Deal found 10/28$339
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/610:59 amEYW - DEN
2 stops22h 12mMultiple Airlines
Sun 11/91:36 pmDEN - EYW
1 stop24h 21mMultiple Airlines
Deal found 10/29$342
This American Airlines deal was found by Cheapflights users on 10/28. 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.
Tue 12/97:30 amEYW - MTJ
2 stops13h 49mAmerican Airlines
Sat 12/137:00 amMTJ - EYW
1 stop7h 07mAmerican Airlines
Deal found 10/28$400
This United Airlines deal was found by Cheapflights users on 10/28. 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 12/184:10 pmEYW - MTJ
2 stops22h 16mUnited Airlines
Mon 12/2212:25 pmMTJ - EYW
1 stop24h 49mUnited Airlines
Deal found 10/28$619
This United Airlines deal was found by Cheapflights users on 10/28. 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.
Fri 12/194:10 pmEYW - MTJ
1 stop21h 29mUnited Airlines
Tue 12/231:34 pmMTJ - EYW
2 stops21h 00mUnited Airlines
Deal found 10/28$692

Cheapflights Fare Finder

 
Customize your flight search to find flights from Key West to Colorado 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 October 29, 2025.
Use the filters below to find and compare flights from Key West to Colorado that are best for you.

Fly from

Key West

Fly to

Colorado

Route

Depart

Return

Price

Key WestDenver

EYW - DEN

EYWDEN

Key West

Sat 12/13

2:42 pm-10:11 pm

1 stop9h 29m

Denver Intl

Tue 1/13

6:00 am-3:17 pm

1 stop7h 17m

$231

Key WestDenver

EYW - DEN

EYWDEN

Key West

Fri 12/19

6:32 pm-1:48 am

1 stop9h 16m

Denver Intl

Wed 1/14

7:50 am-7:10 pm

2 stops9h 20m

$262

Key WestDenver

EYW - DEN

EYWDEN

Key West

Tue 11/25

4:10 pm-11:17 pm

1 stop9h 07m

Denver Intl

Tue 12/2

7:49 am-5:51 pm

1 stop8h 02m

$284

Key WestMontrose

EYW - MTJ

EYWMTJ

Key West

Thu 12/11

2:31 pm-7:48 pm

1 stop7h 17m

Montrose County

Mon 12/15

7:00 am-4:07 pm

1 stop7h 07m

$294

Key WestDenver

EYW - DEN

EYWDEN

Key West

Sat 12/13

10:47 am-9:10 am

1 stop24h 23m

Denver Intl

Mon 1/12

12:59 am-10:09 am

2 stops31h 10m

$302

Key WestDenver

EYW - DEN

EYWDEN

Key West

Thu 12/18

8:55 am-11:04 pm

1 stop16h 09m

Denver Intl

Wed 1/14

6:50 am-9:06 am

2 stops24h 16m

$310

Key WestDenver

EYW - DEN

EYWDEN

Key West

Fri 12/19

1:10 pm-11:04 pm

1 stop11h 54m

Denver Intl

Thu 1/15

9:05 pm-10:09 am

2 stops35h 04m

$369

Key WestDenver

EYW - DEN

EYWDEN

Key West

Thu 12/18

8:55 am-11:04 pm

1 stop16h 09m

Denver Intl

Thu 1/15

3:55 pm-3:02 pm

2 stops21h 07m

$378

Key WestMontrose

EYW - MTJ

EYWMTJ

Key West

Tue 12/9

7:30 am-7:19 pm

2 stops13h 49m

Montrose County

Sat 12/13

7:00 am-4:07 pm

1 stop7h 07m

$400

Key WestDenver

EYW - DEN

EYWDEN

Key West

Wed 1/14

10:49 am-8:34 pm

1 stop11h 45m

Denver Intl

Thu 1/15

10:43 am-4:51 pm

1 stop28h 08m

$407

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 23 results
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2
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Best time to book a flight from Key West to Colorado

Have a flexible travel schedule? Discover the best time to fly to Colorado from Key West 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 Key West to Colorado

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

Currently, February is the cheapest month in which you can book a flight from Key West to Colorado (average of $218). Flying from Key West to Colorado in July is currently the most expensive (average of $404). 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 EYW to CO?

Find hourly flight availability from Key West to Colorado. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 29, 2025.

One of the essential ways to save on airfare from Key West to Colorado is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 52% on airfare.

How much does it cost to fly round-trip from Key West to Colorado?

Reviews of airlines servicing Colorado

Get insights into the airlines that provide service to Colorado. 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 Colorado. Reviews last updated October 29, 2025.
Read reviews from past customers who have flown Delta and American Airlines from Key West to Colorado. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
7,992 reviews

Crew

8.5

Overall

7.9

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
Delta
7.9
Good
7,992 reviews
Delta
7.9
Good
7,992 reviews

Crew

8.5

Overall

7.9

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
American Airlines
7.2
Good
11,032 reviews
Delta
7.9
Good
7,992 reviews

Crew

8.5

Overall

7.9

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.

Related info for your journey

Find useful and relevant information for your journey from Key West to Colorado. 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 from for flights from Key West to Colorado?

    Located just 2.6 mi from the city center, Key West (EYW) is the airport most travelers will use when flying to Colorado from Key West.

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

    United Airlines and American Airlines can get you from Key West to Colorado in just under 9h 16m. Your travel time can differ by up to 13m. Airlines will cover a distance of 1696 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Most travelers choose Key West - Denver Intl, Key West - Montrose County or Key West - Gunnison when deciding on the best route from Key West to Colorado.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Key West to Colorado 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 Key West to Colorado?

    Currently, February is the cheapest month in which you can book a flight from Key West to Colorado (average of $218). Flying from Key West to Colorado in July is currently the most expensive (average of $404). 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 2 airlines flying from Key West to Colorado

Discover the top 2 airlines that operate flights from Key West to Colorado. 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 October 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$230Average$354FlexibilityNo cancel feeOn-time71%
DeltaCheapest$276Average$468FlexibilityNo cancel feeOn-timeN/A

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