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Cheap flights from Colorado to Key West from $126

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 4/20. 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.
Multiple Airlines Logo
11:59 pm - 9:09 am
DEN
-
EYW
7h 10m
1 stop
Multiple Airlines Logo
1:11 pm - 10:39 pm
EYW
-
DEN
11h 28m
1 stop
$218Multiple Airlines
Sun, May 3 - Fri, May 8
Multiple Airlines Logo
11:59 pm - 2:43 pm
DEN
-
EYW
12h 44m
1 stop
Multiple Airlines Logo
1:14 pm - 10:39 pm
EYW
-
DEN
11h 25m
1 stop
$232Multiple Airlines
Thu, May 14 - Tue, May 19
Multiple Airlines Logo
11:59 pm - 12:21 pm
DEN
-
EYW
10h 22m
1 stop
Multiple Airlines Logo
11:46 am - 10:39 pm
EYW
-
DEN
12h 53m
1 stop
$240Multiple Airlines
Mon, Apr 27 - Wed, May 6
Multiple Airlines Logo
1:07 pm - 12:21 pm
DEN
-
EYW
21h 14m
2 stops
Multiple Airlines Logo
11:46 am - 10:39 pm
EYW
-
DEN
12h 53m
1 stop
$244Multiple Airlines
Mon, Apr 27 - Wed, May 6
American Airlines Logo
5:40 am - 4:30 pm
COS
-
EYW
8h 50m
2 stops
American Airlines Logo
6:45 am - 2:47 pm
EYW
-
COS
10h 02m
2 stops
$453American Airlines
Tue, May 19 - Thu, May 21
Delta Logo
5:55 pm - 10:58 am
COS
-
EYW
15h 03m
2 stops
Delta Logo
2:35 pm - 9:15 pm
EYW
-
COS
8h 40m
1 stop
$460Delta
Mon, Sep 21 - Fri, Sep 25
American Airlines Logo
5:41 am - 4:30 pm
COS
-
EYW
8h 49m
2 stops
American Airlines Logo
3:58 pm - 11:32 pm
EYW
-
COS
9h 34m
2 stops
$492American Airlines
Sun, Apr 12 - Thu, Apr 16
Delta Logo
7:00 am - 5:29 pm
COS
-
EYW
8h 29m
1 stop
Delta Logo
2:34 pm - 9:19 pm
EYW
-
COS
8h 45m
1 stop
$495Delta
Sat, Jun 27 - Sat, Jul 4
United Airlines Logo
1:36 pm - 11:24 am
DRO
-
EYW
19h 48m
3 stops
United Airlines Logo
4:38 pm - 12:34 pm
EYW
-
DRO
21h 56m
2 stops
$812United Airlines
Fri, Apr 10 - Tue, Apr 14
United Airlines Logo
6:00 pm - 3:07 pm
DRO
-
EYW
19h 07m
2 stops
United Airlines Logo
4:47 pm - 12:33 pm
EYW
-
DRO
21h 46m
2 stops
$1,112United Airlines
Thu, Apr 30 - Sun, May 3

American Airlines flights from Colorado to Key West

Our best American Airlines deals on Colorado to Key West flight tickets
American Airlines
May 1
DEN11:46 amDenver Intl
9h 12m
2 stops
EYW10:58 pmKey West
May 9
EYW6:45 amKey West
9h 02m
2 stops
DEN1:47 pmDenver Intl
$333
American Airlines
May 4
DEN7:00 amDenver Intl
6h 40m
1 stop
EYW3:40 pmKey West
May 11
EYW4:20 pmKey West
8h 06m
1 stop
DEN10:26 pmDenver Intl
$336
American Airlines
May 6
DEN11:46 amDenver Intl
8h 50m
1 stop
EYW10:36 pmKey West
May 9
EYW3:58 pmKey West
8h 01m
2 stops
DEN9:59 pmDenver Intl
$339

United Airlines flights from Colorado to Key West

Our best United Airlines deals on Colorado to Key West flight tickets
United Airlines
Apr 1
COS7:39 amColorado Springs
6h 18m
1 stop
EYW3:57 pmKey West
Apr 8
EYW4:38 pmKey West
6h 53m
1 stop
COS9:31 pmColorado Springs
$386
United Airlines
Apr 1
COS6:00 amColorado Springs
7h 57m
2 stops
EYW3:57 pmKey West
Apr 8
EYW4:38 pmKey West
6h 53m
1 stop
COS9:31 pmColorado Springs
$391
United Airlines
Apr 1
COS6:00 amColorado Springs
7h 57m
2 stops
EYW3:57 pmKey West
Apr 8
EYW3:52 pmKey West
22h 44m
3 stops
COS12:36 pmColorado Springs
$792

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 March 28, 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

Sun 5/3

11:59 pm-9:09 am

1 stop7h 10m

Key West

Fri 5/8

1:11 pm-10:39 pm

1 stop11h 28m

$218

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Thu 5/14

11:59 pm-2:43 pm

1 stop12h 44m

Key West

Tue 5/19

1:14 pm-10:39 pm

1 stop11h 25m

$232

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Mon 4/27

11:59 pm-12:21 pm

1 stop10h 22m

Key West

Wed 5/6

11:46 am-10:39 pm

1 stop12h 53m

$240

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Mon 4/27

1:07 pm-12:21 pm

2 stops21h 14m

Key West

Wed 5/6

11:46 am-10:39 pm

1 stop12h 53m

$244

Colorado SpringsKey West

COS - EYW

COSEYW

Colorado Springs

Tue 5/19

5:40 am-4:30 pm

2 stops8h 50m

Key West

Thu 5/21

6:45 am-2:47 pm

2 stops10h 02m

$453

Colorado SpringsKey West

COS - EYW

COSEYW

Colorado Springs

Mon 9/21

5:55 pm-10:58 am

2 stops15h 03m

Key West

Fri 9/25

2:35 pm-9:15 pm

1 stop8h 40m

$460

Colorado SpringsKey West

COS - EYW

COSEYW

Colorado Springs

Sun 4/12

5:41 am-4:30 pm

2 stops8h 49m

Key West

Thu 4/16

3:58 pm-11:32 pm

2 stops9h 34m

$492
Quickest round-trip

Colorado SpringsKey West

COS - EYW

COSEYW

Colorado Springs

Sat 6/27

7:00 am-5:29 pm

1 stop8h 29m

Key West

Sat 7/4

2:34 pm-9:19 pm

1 stop8h 45m

$495

DurangoKey West

DRO - EYW

DROEYW

Durango La Plata County

Fri 4/10

1:36 pm-11:24 am

3 stops19h 48m

Key West

Tue 4/14

4:38 pm-12:34 pm

2 stops21h 56m

$812

DurangoKey West

DRO - EYW

DROEYW

Durango La Plata County

Thu 4/30

6:00 pm-3:07 pm

2 stops19h 07m

Key West

Sun 5/3

4:47 pm-12:33 pm

2 stops21h 46m

$1,112

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 $288. If you are unable to visit Key West during the month of August, then departing from Colorado during the month September is also very affordable. Most momondo users find prices during this month for around $324.

How far in advance should I book a flight 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 $379 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 $296 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

7h 00m

Direct flights

None
The fastest flight from Colorado to Key West takes 7h 00m
There are no direct flights from Colorado to Key West. There are no popular flight routes from Colorado to Key West.
Search flight deals

  • 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
11,520 reviews
Search American Airlines flights
DeltaPriceFrom $236Free CancellationRating
7.9
8,356 reviews
Search Delta flights
United AirlinesPriceFrom $277Free CancellationRating
7.4
9,499 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

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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