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$119+ 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 1/7. Fares are subject to change and may not be available on all flights or dates of travel.
EYW — DEN
Jan 14 — Jan 211
Wed 1/14
Wed 1/21
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 December 15, 2025.

This Delta deal was found by Cheapflights users on 12/14. 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 12/206:20 pmEYW - DEN
1 stop7h 43mDelta
Sat 1/1010:45 amDEN - EYW
1 stop6h 55mDelta
Deal found 12/14$328
This American Airlines deal was found by Cheapflights users on 12/14. 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 12/201:56 pmEYW - DEN
2 stops10h 05mAmerican Airlines
Sat 1/106:23 amDEN - EYW
1 stop7h 18mAmerican Airlines
Deal found 12/14$333
This United Airlines deal was found by Cheapflights users on 12/14. 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 12/244:29 pmEYW - DEN
1 stop7h 36mUnited Airlines
Sun 12/286:00 amDEN - EYW
1 stop8h 29mUnited Airlines
Deal found 12/14$375
This United Airlines deal was found by Cheapflights users on 12/15. 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 12/3012:22 pmEYW - DEN
1 stop9h 24mUnited Airlines
Sat 1/35:00 amDEN - EYW
1 stop8h 48mUnited Airlines
Deal found 12/15$426
This American Airlines deal was found by Cheapflights users on 12/15. 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 12/304:03 pmEYW - DEN
1 stop6h 56mAmerican Airlines
Sat 1/35:00 amDEN - EYW
2 stops10h 44mAmerican Airlines
Deal found 12/15$454
This Kiwi.com deal was found by Cheapflights users on 12/13. 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.
Sun 12/283:32 pmEYW - DEN
1 stop28h 45mMultiple Airlines
Thu 1/16:05 amDEN - EYW
2 stops28h 25mMultiple Airlines
Deal found 12/13$474

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 December 15, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$237
(American Airlines)

One-way from

$119
(American Airlines)

Popular in

July

Cheapest in

April

Average price

$428
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. 13% potential increase in price ($63 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 15, 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

Thu 1/22

1:22 pm-9:16 pm

1 stop9h 54m

Denver Intl

Thu 1/29

11:29 am-9:47 pm

1 stop8h 18m

$237

Key WestDenver

EYW - DEN

EYWDEN

Key West

Thu 1/29

6:06 pm-12:28 am

1 stop8h 22m

Denver Intl

Fri 2/6

12:00 pm-7:40 pm

1 stop5h 40m

$260

Key WestDenver

EYW - DEN

EYWDEN

Key West

Thu 1/29

1:33 pm-9:16 pm

2 stops9h 43m

Denver Intl

Fri 2/6

6:23 am-6:01 pm

1 stop9h 38m

$265

Key WestDenver

EYW - DEN

EYWDEN

Key West

Fri 1/9

6:05 pm-12:32 am

1 stop8h 27m

Denver Intl

Sun 1/11

6:00 am-3:17 pm

1 stop7h 17m

$376

Key WestDenver

EYW - DEN

EYWDEN

Key West

Sat 2/21

7:35 pm-11:59 pm

1 stop6h 24m

Denver Intl

Sat 2/28

8:09 am-4:19 pm

1 stop6h 10m

$410

Key WestDenver

EYW - DEN

EYWDEN

Key West

Tue 12/30

12:22 pm-7:46 pm

1 stop9h 24m

Denver Intl

Sat 1/3

5:00 am-3:48 pm

1 stop8h 48m

$426

Key WestDenver

EYW - DEN

EYWDEN

Key West

Tue 12/30

4:03 pm-8:59 pm

1 stop6h 56m

Denver Intl

Sat 1/3

5:00 am-5:44 pm

2 stops10h 44m

$454

Key WestMontrose

EYW - MTJ

EYWMTJ

Key West

Sat 1/24

4:15 pm-8:17 pm

2 stops30h 02m

Montrose County

Tue 1/27

3:28 pm-1:03 pm

2 stops19h 35m

$593

Key WestGunnison

EYW - GUC

EYWGUC

Key West

Tue 3/31

4:45 pm-12:50 pm

2 stops22h 05m

Gunnison

Wed 4/1

3:25 pm-4:41 pm

2 stops23h 16m

$1,069

Key WestDenver

EYW - DEN

EYWDEN

Key West

Wed 1/7

6:06 pm-10:55 pm

1 stop6h 49m

$119

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/13

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.

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 December 15, 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.

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 December 15, 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
8,007 reviews

Overall

7.9

Boarding

8.1

Food

7.3

Entertainment

7.9

Crew

8.5

Comfort

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
8,007 reviews
Delta
7.9
Good
8,007 reviews

Overall

7.9

Boarding

8.1

Food

7.3

Entertainment

7.9

Crew

8.5

Comfort

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
11,052 reviews
Delta
7.9
Good
8,007 reviews

Overall

7.9

Boarding

8.1

Food

7.3

Entertainment

7.9

Crew

8.5

Comfort

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?

    American Airlines, Delta, and United Airlines can get you from Key West to Colorado in just under 8h 22m. Your travel time can differ by up to 21h 40m. 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 $184 one-way.

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

    Most travelers choose Key West - Denver Intl, Key West - Gunnison or Key West - Montrose County 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.

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 December 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$236Average$368FlexibilityNo cancel feeOn-time71%
DeltaCheapest$276Average$458FlexibilityNo cancel feeOn-timeN/A

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