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$137+ 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 4/13. Fares are subject to change and may not be available on all flights or dates of travel.
EYW — DEN
Mar 1 — Mar 81
Sun 3/1
Sun 3/8
1 adult, Economy
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Cheap 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 January 30, 2026.

This American Airlines deal was found by Cheapflights users on 1/29. 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 4/86:45 pm
EYW
-
DEN
1 stop7h 14m
American Airlines
Tue 4/1411:46 am
DEN
-
EYW
1 stop8h 07m
American Airlines
Deal found 1/29$231
This Kiwi.com deal was found by Cheapflights users on 1/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/271:06 pm
EYW
-
DEN
1 stop20h 49m
Multiple Airlines
Fri 3/611:59 pm
DEN
-
EYW
2 stops31h 22m
Multiple Airlines
Deal found 1/28$245
This Delta deal was found by Cheapflights users on 1/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/265:56 pm
EYW
-
DEN
1 stop8h 27m
Delta
Sun 3/112:59 am
DEN
-
EYW
1 stop8h 00m
Delta
Deal found 1/30$257
This American Airlines deal was found by Cheapflights users on 1/29. 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.
Thu 2/261:55 pm
EYW
-
DEN
2 stops10h 45m
American Airlines
Mon 3/27:00 am
DEN
-
EYW
1 stop6h 57m
American Airlines
Deal found 1/29$262
This American Airlines deal was found by Cheapflights users on 1/28. 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.
Fri 2/132:06 pm
EYW
-
DEN
1 stop8h 08m
American Airlines
Mon 2/167:00 am
DEN
-
EYW
1 stop9h 19m
American Airlines
Deal found 1/28$335
This Kiwi.com deal was found by Cheapflights users on 1/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/1211:07 am
EYW
-
DEN
1 stop22h 30m
Multiple Airlines
Sun 2/1512:01 am
DEN
-
EYW
2 stops34h 20m
Multiple Airlines
Deal found 1/28$338
This United Airlines deal was found by Cheapflights users on 1/28. 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 2/276:40 pm
EYW
-
DEN
1 stop7h 50m
United Airlines
Fri 3/66:10 am
DEN
-
EYW
1 stop8h 26m
United Airlines
Deal found 1/28$342
This United Airlines deal was found by Cheapflights users on 1/29. 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 10/272:30 pm
EYW
-
GUC
2 stops31h 42m
United Airlines
Sat 10/311:47 pm
GUC
-
EYW
2 stops24h 19m
United Airlines
Deal found 1/29$565
This United Airlines deal was found by Cheapflights users on 1/29. 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.
Fri 1/304:15 pm
EYW
-
MTJ
1 stop21h 12m
United Airlines
Sat 1/313:28 pm
MTJ
-
EYW
2 stops19h 35m
United Airlines
Deal found 1/29$980

Find 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 January 30, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$231
(American Airlines)

One-way from

$137
(Kiwi.com)

Popular in

July

Cheapest in

March

Average price

$399
Provider with most accurate pricing for Key West-Denver Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Key West-Denver Intl flights.
Search Deals
From Key West to Colorado
Search Deals
One-way flight from Key West to Colorado
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($82 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 January 30, 2026.
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

Wed 4/8

6:45 pm-11:59 pm

1 stop7h 14m

Denver Intl

Tue 4/14

11:46 am-9:53 pm

1 stop8h 07m

$231

Key WestDenver

EYW - DEN

EYWDEN

Key West

Fri 2/27

1:06 pm-7:55 am

1 stop20h 49m

Denver Intl

Fri 3/6

11:59 pm-9:21 am

2 stops31h 22m

$245

Key WestDenver

EYW - DEN

EYWDEN

Key West

Thu 2/26

5:56 pm-12:23 am

1 stop8h 27m

Denver Intl

Sun 3/1

12:59 am-10:59 am

1 stop8h 00m

$257

Key WestDenver

EYW - DEN

EYWDEN

Key West

Thu 2/26

4:40 pm-10:40 pm

1 stop8h 00m

Denver Intl

Mon 3/2

7:00 am-6:19 pm

1 stop9h 19m

$257

Key WestDenver

EYW - DEN

EYWDEN

Key West

Fri 2/13

2:06 pm-8:14 pm

1 stop8h 08m

Denver Intl

Mon 2/16

7:00 am-6:19 pm

1 stop9h 19m

$335

Key WestDenver

EYW - DEN

EYWDEN

Key West

Mon 4/13

2:35 pm-5:40 pm

2 stops29h 05m

$137

Key WestDenver

EYW - DEN

EYWDEN

Key West

Sun 5/10

12:05 pm-11:36 am

2 stops25h 31m

$206

Key WestDenver

EYW - DEN

EYWDEN

Key West

Sun 2/22

4:09 pm-7:37 am

2 stops17h 28m

$207

Key WestDenver

EYW - DEN

EYWDEN

Key West

Fri 3/20

2:35 pm-8:08 am

2 stops43h 33m

$227

Key WestDenver

EYW - DEN

EYWDEN

Key West

Wed 3/18

4:40 pm-10:42 pm

1 stop8h 02m

$230

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/29

Showing 1-10 of 13 results
1
2

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, December is the cheapest month in which you can book a flight from Key West to Colorado (average of $230). Flying from Key West to Colorado in November is currently the most expensive (average of $424). 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.

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 January 30, 2026.
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
8,125 reviews

Comfort

7.9

Food

7.2

Boarding

8.1

Crew

8.5

Overall

7.9

Entertainment

7.8

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
8,125 reviews
Delta
7.9
Good
8,125 reviews

Comfort

7.9

Food

7.2

Boarding

8.1

Crew

8.5

Overall

7.9

Entertainment

7.8

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
11,207 reviews
Delta
7.9
Good
8,125 reviews

Comfort

7.9

Food

7.2

Boarding

8.1

Crew

8.5

Overall

7.9

Entertainment

7.8

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?

    American Airlines and Delta can get you from Key West to Colorado in just under 7h 14m. Your travel time can differ by up to 1h 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 cheapest airlines to fly from Key West to Colorado one-way?

    One-way options have recently been found by users for as low as $99 on American Airlines. Other airlines that offer cheap prices include Delta from $118 and United Airlines from $144 one-way.

  • 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, December is the cheapest month in which you can book a flight from Key West to Colorado (average of $230). Flying from Key West to Colorado in November is currently the most expensive (average of $424). 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.

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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 January 30, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$230Average$368FlexibilityNo cancel feeOn-time71%
DeltaCheapest$276Average$468FlexibilityNo cancel feeOn-timeN/A

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