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Cheap flights from Colorado to Key West from $130

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Colorado to Key West departing on 6/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Colorado to Key West

Cheap round-trip flights

Enter your travel dates to find the best prices.
Allegiant Air Logo
3:47 pm - 10:05 am
DEN
-
EYW
16h 18m
1 stop
Allegiant Air Logo
10:55 am - 7:13 am
EYW
-
DEN
22h 18m
1 stop
$277Allegiant Air
Sat, Jul 4 - Thu, Jul 9
American Airlines Logo
11:55 pm - 9:44 am
DEN
-
EYW
7h 49m
1 stop
American Airlines Logo
4:50 pm - 10:14 pm
EYW
-
DEN
7h 24m
1 stop
$281American Airlines
Sat, Aug 15 - Wed, Aug 19
Allegiant Air Logo
3:47 pm - 10:05 am
DEN
-
EYW
16h 18m
1 stop
Allegiant Air Logo
10:55 am - 7:13 am
EYW
-
DEN
22h 18m
1 stop
$282Allegiant Air
Sat, Jul 4 - Thu, Jul 9
American Airlines Logo
6:20 am - 4:54 pm
DEN
-
EYW
8h 34m
1 stop
American Airlines Logo
1:49 pm - 10:14 pm
EYW
-
DEN
10h 25m
2 stops
$286American Airlines
Wed, Jul 29 - Wed, Aug 5
Allegiant Air Logo
9:11 am - 9:41 am
DEN
-
EYW
22h 30m
1 stop
Allegiant Air Logo
10:56 am - 7:32 am
EYW
-
DEN
22h 36m
1 stop
$287Allegiant Air
Thu, Aug 13 - Sun, Aug 16
American Airlines Logo
6:20 am - 7:06 pm
DEN
-
EYW
10h 46m
2 stops
American Airlines Logo
1:49 pm - 10:14 pm
EYW
-
DEN
10h 25m
2 stops
$291American Airlines
Wed, Jul 29 - Wed, Aug 5
Delta Logo
5:45 am - 1:28 pm
DEN
-
EYW
5h 43m
1 stop
Delta Logo
1:57 pm - 7:52 pm
EYW
-
DEN
7h 55m
1 stop
$295Delta
Wed, Jul 29 - Wed, Aug 5
Delta Logo
10:58 am - 7:53 pm
DEN
-
EYW
6h 55m
1 stop
Delta Logo
6:18 pm - 12:23 am
EYW
-
DEN
8h 05m
1 stop
$314Delta
Fri, Jul 3 - Fri, Jul 10
United Airlines Logo
6:00 pm - 1:29 pm
DRO
-
EYW
17h 29m
2 stops
United Airlines Logo
2:20 pm - 8:54 pm
EYW
-
DRO
32h 34m
2 stops
$1,246United Airlines
Sat, Aug 22 - Tue, Aug 25
United Airlines Logo
6:00 pm - 1:29 pm
DRO
-
EYW
17h 29m
2 stops
United Airlines Logo
2:20 pm - 9:37 am
EYW
-
DRO
21h 17m
2 stops
$1,276United Airlines
Sat, Aug 22 - Tue, Aug 25

Delta flights from Colorado to Key West

Our best Delta deals on Colorado to Key West flight tickets
Delta
Jul 29
DEN5:45 amDenver Intl
5h 43m
1 stop
EYW1:28 pmKey West
Aug 5
EYW1:57 pmKey West
7h 55m
1 stop
DEN7:52 pmDenver Intl
$295
Delta
Jul 3
DEN10:58 amDenver Intl
6h 55m
1 stop
EYW7:53 pmKey West
Jul 10
EYW6:18 pmKey West
8h 05m
1 stop
DEN12:23 amDenver Intl
$314
Delta
Jul 29
DEN5:45 amDenver Intl
5h 43m
1 stop
EYW1:28 pmKey West
Aug 3
EYW6:15 pmKey West
8h 21m
1 stop
DEN12:36 amDenver Intl
$322

American Airlines flights from Colorado to Key West

Our best American Airlines deals on Colorado to Key West flight tickets
American Airlines
Aug 15
DEN11:55 pmDenver Intl
7h 49m
1 stop
EYW9:44 amKey West
Aug 19
EYW4:50 pmKey West
7h 24m
1 stop
DEN10:14 pmDenver Intl
$281
American Airlines
Jul 29
DEN6:20 amDenver Intl
8h 34m
1 stop
EYW4:54 pmKey West
Aug 5
EYW1:49 pmKey West
10h 25m
2 stops
DEN10:14 pmDenver Intl
$286
American Airlines
Jul 29
DEN6:20 amDenver Intl
10h 46m
2 stops
EYW7:06 pmKey West
Aug 5
EYW1:49 pmKey West
10h 25m
2 stops
DEN10:14 pmDenver Intl
$291

momondo 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, momondo users made 832,500 searches. Data last updated May 29, 2026.
Use the filters below to find and compare flights from Colorado to Key West that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Sat 7/4

3:47 pm-10:05 am

1 stop16h 18m

Key West

Thu 7/9

10:55 am-7:13 am

1 stop22h 18m

$277

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Sat 8/15

11:55 pm-9:44 am

1 stop7h 49m

Key West

Wed 8/19

4:50 pm-10:14 pm

1 stop7h 24m

$281

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Sat 7/4

3:47 pm-10:05 am

1 stop16h 18m

Key West

Thu 7/9

10:55 am-7:13 am

1 stop22h 18m

$282

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Wed 7/29

6:20 am-4:54 pm

1 stop8h 34m

Key West

Wed 8/5

1:49 pm-10:14 pm

2 stops10h 25m

$286

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Thu 8/13

9:11 am-9:41 am

1 stop22h 30m

Key West

Sun 8/16

10:56 am-7:32 am

1 stop22h 36m

$287

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Wed 7/29

6:20 am-7:06 pm

2 stops10h 46m

Key West

Wed 8/5

1:49 pm-10:14 pm

2 stops10h 25m

$291
Quickest round-trip

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Wed 7/29

5:45 am-1:28 pm

1 stop5h 43m

Key West

Wed 8/5

1:57 pm-7:52 pm

1 stop7h 55m

$295

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Fri 7/3

10:58 am-7:53 pm

1 stop6h 55m

Key West

Fri 7/10

6:18 pm-12:23 am

1 stop8h 05m

$314

DurangoKey West

DRO - EYW

DROEYW

Durango La Plata County

Sat 8/22

6:00 pm-1:29 pm

2 stops17h 29m

Key West

Tue 8/25

2:20 pm-8:54 pm

2 stops32h 34m

$1,246

DurangoKey West

DRO - EYW

DROEYW

Durango La Plata County

Sat 8/22

6:00 pm-1:29 pm

2 stops17h 29m

Key West

Tue 8/25

2:20 pm-9:37 am

2 stops21h 17m

$1,276

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Key West from

How to get the cheapest flight ticket from Colorado to Key West

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Key West?

In general, August is the cheapest month to fly from Colorado to Key West. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $199. If you are unable to visit Key West during the month of August, then departing from Colorado during the month February is also very affordable. Most momondo users find prices during this month for around $221.

How far in advance should I book a flight from Colorado to Key West?

You are more likely to see cheaper flights to Key West from Colorado when booking weeks ahead of your departure date. In general, you can expect to find flights to Key West for around $390 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Key West from Colorado for as low as $303 on momondo.

Can stopping save me money on Colorado to Key West flights?

You could potentially save up to 50% on your flight if you consider stops on a Colorado to Key West flight.

Cheap Colorado to Key West flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Colorado to Key West

Fastest flight time

5h 28m

Direct flights

None
The fastest flight from Colorado to Key West takes 5h 28m
There are no direct flights from Colorado to Key West. There are no popular flight routes from Colorado to Key West.
Search flight deals

Frequently asked questions about flying from Colorado to Key West

  • When did momondo last update prices for flights from Colorado to Key West Airport?

    Prices for flights from Colorado to Key West Airport are updated daily.

  • How many operators does momondo search for flights from Colorado to Key West Airport?

  • How old do you have to be to fly from Colorado to Key West Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Colorado to Key West Airport.

  • What documentation or ID do you need to fly to Key West Airport?

    The necessary travel and health documents for your Key West Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Colorado to Key West

Compare and see reviews for airlines that fly from Colorado to Key West with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $230Free CancellationRating
7.1
11,643 reviews
Search American Airlines flights
DeltaPriceFrom $236Free CancellationRating
7.9
8,419 reviews
Search Delta flights
United AirlinesPriceFrom $270Free CancellationRating
7.4
9,763 reviews
Search United Airlines flights

Traveling to a place near Key West?

Book flights to Key West if you plan to visit one of these locations
Big Pine Key
Little Torch Key

Why use momondo?

Why should I use momondo to find a flight deal from Colorado to Key West?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Key West from Colorado.

Can I find flights from Colorado to Key West with flexible booking policies on momondo?

All flight searches from Colorado to Key West on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Colorado to Key West?

momondo helps you find the best flight between Colorado and Key West by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Colorado to Key West right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Colorado to Key West flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Key West trip

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