Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Denver to Key West from $122

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Denver to Key West departing on 4/12. 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

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Denver to Key West

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
11:59 pm - 3:42 pm
DEN
-
EYW
13h 43m
1 stop
Multiple Airlines Logo
9:49 am - 10:59 pm
EYW
-
DEN
15h 10m
1 stop
$238Multiple Airlines
Sat, Apr 18 - Fri, Apr 24
Multiple Airlines Logo
11:59 pm - 10:21 am
DEN
-
EYW
8h 22m
1 stop
Multiple Airlines Logo
1:01 pm - 10:59 pm
EYW
-
DEN
11h 58m
1 stop
$239Multiple Airlines
Sat, Apr 18 - Tue, Apr 21
Multiple Airlines Logo
11:59 pm - 10:21 am
DEN
-
EYW
8h 22m
1 stop
Multiple Airlines Logo
1:01 pm - 1:32 pm
EYW
-
DEN
26h 31m
2 stops
$244Multiple Airlines
Sat, Apr 18 - Tue, Apr 21
Multiple Airlines Logo
11:59 pm - 10:21 am
DEN
-
EYW
8h 22m
1 stop
Multiple Airlines Logo
12:39 pm - 10:59 pm
EYW
-
DEN
12h 20m
1 stop
$245Multiple Airlines
Sat, Apr 18 - Wed, Apr 22
Multiple Airlines Logo
12:33 am - 3:42 pm
DEN
-
EYW
13h 09m
1 stop
Multiple Airlines Logo
9:49 am - 11:08 pm
EYW
-
DEN
15h 19m
1 stop
$249Multiple Airlines
Sat, Apr 4 - Mon, Apr 6
Multiple Airlines Logo
12:08 am - 10:21 am
DEN
-
EYW
8h 13m
1 stop
Multiple Airlines Logo
11:54 am - 8:50 am
EYW
-
DEN
22h 56m
1 stop
$252Multiple Airlines
Sat, Apr 11 - Sat, Apr 18
Multiple Airlines Logo
11:59 pm - 10:21 am
DEN
-
EYW
8h 22m
1 stop
Multiple Airlines Logo
4:22 pm - 10:59 pm
EYW
-
DEN
8h 37m
1 stop
$254Multiple Airlines
Sat, Apr 25 - Thu, Apr 30
Multiple Airlines Logo
11:59 pm - 10:21 am
DEN
-
EYW
8h 22m
1 stop
Multiple Airlines Logo
11:01 am - 11:09 pm
EYW
-
DEN
14h 08m
2 stops
$255Multiple Airlines
Sat, Apr 25 - Thu, Apr 30
Multiple Airlines Logo
11:59 pm - 10:21 am
DEN
-
EYW
8h 22m
1 stop
Multiple Airlines Logo
1:06 pm - 12:14 pm
EYW
-
DEN
25h 08m
2 stops
$259Multiple Airlines
Sat, Apr 18 - Fri, Apr 24
Multiple Airlines Logo
11:59 pm - 9:09 am
DEN
-
EYW
7h 10m
1 stop
Multiple Airlines Logo
11:51 am - 10:59 pm
EYW
-
DEN
13h 08m
1 stop
$260Multiple Airlines
Sun, Apr 26 - Wed, Apr 29

American Airlines flights from Denver to Key West

Our best American Airlines deals on Denver to Key West flight tickets
American Airlines
Apr 24
DEN11:46 amDenver Intl
9h 12m
2 stops
EYW10:58 pmKey West
Apr 29
EYW4:20 pmKey West
8h 06m
1 stop
DEN10:26 pmDenver Intl
$302
American Airlines
Apr 25
DEN10:28 amDenver Intl
10h 08m
2 stops
EYW10:36 pmKey West
Apr 30
EYW3:58 pmKey West
8h 28m
2 stops
DEN10:26 pmDenver Intl
$307
American Airlines
Apr 15
DEN11:46 amDenver Intl
8h 50m
1 stop
EYW10:36 pmKey West
Apr 22
EYW2:01 pmKey West
8h 30m
1 stop
DEN8:31 pmDenver Intl
$309

Delta flights from Denver to Key West

Our best Delta deals on Denver to Key West flight tickets
Delta
Aug 5
DEN10:45 amDenver Intl
7h 00m
1 stop
EYW7:45 pmKey West
Aug 13
EYW6:00 pmKey West
7h 45m
1 stop
DEN11:45 pmDenver Intl
$317
Delta
Apr 2
DEN11:43 amDenver Intl
5h 58m
1 stop
EYW7:41 pmKey West
Apr 7
EYW6:25 pmKey West
7h 44m
1 stop
DEN12:09 amDenver Intl
$383
Delta
Mar 31
DEN12:55 amDenver Intl
7h 53m
1 stop
EYW10:48 amKey West
Apr 7
EYW6:25 pmKey West
7h 44m
1 stop
DEN12:09 amDenver Intl
$411

momondo Fare Finder

 
Customize your flight search to find flights from Denver 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 19, 2026.
Use the filters below to find and compare flights from Denver 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 4/18

11:59 pm-3:42 pm

1 stop13h 43m

Key West

Fri 4/24

9:49 am-10:59 pm

1 stop15h 10m

$238

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Sat 4/18

11:59 pm-10:21 am

1 stop8h 22m

Key West

Tue 4/21

1:01 pm-10:59 pm

1 stop11h 58m

$239

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Sat 4/18

11:59 pm-10:21 am

1 stop8h 22m

Key West

Tue 4/21

1:01 pm-1:32 pm

2 stops26h 31m

$244

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Sat 4/18

11:59 pm-10:21 am

1 stop8h 22m

Key West

Wed 4/22

12:39 pm-10:59 pm

1 stop12h 20m

$245

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Sat 4/4

12:33 am-3:42 pm

1 stop13h 09m

Key West

Mon 4/6

9:49 am-11:08 pm

1 stop15h 19m

$249

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Sat 4/11

12:08 am-10:21 am

1 stop8h 13m

Key West

Sat 4/18

11:54 am-8:50 am

1 stop22h 56m

$252
Quickest round-trip

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Sat 4/25

11:59 pm-10:21 am

1 stop8h 22m

Key West

Thu 4/30

4:22 pm-10:59 pm

1 stop8h 37m

$254

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Sat 4/25

11:59 pm-10:21 am

1 stop8h 22m

Key West

Thu 4/30

11:01 am-11:09 pm

2 stops14h 08m

$255

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Sat 4/18

11:59 pm-10:21 am

1 stop8h 22m

Key West

Fri 4/24

1:06 pm-12:14 pm

2 stops25h 08m

$259

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Sun 4/26

11:59 pm-9:09 am

1 stop7h 10m

Key West

Wed 4/29

11:51 am-10:59 pm

1 stop13h 08m

$260

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Key West from

How to get the cheapest flight ticket from Denver 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 Denver 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 Denver 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 Denver 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 Denver for as low as $296 on momondo.

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

You could potentially save up to 47% on your flight if you consider stops on a Denver to Key West flight.

How have Denver to Key West flight prices changed over time?

When to book flights from Denver to Key West

Are you open to changing your travel dates? Check out the ideal times to fly from Denver to Key West according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Denver to Key West (DEN to EYW) flight deals and tips

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

Fastest flight time

6h 12m

Direct flights

None
The fastest flight from Denver to Key West takes 6h 12m
There are no direct flights from Denver to Key West. There are no popular flight routes from Denver to Key West.
Search flight deals

  • How far is Denver Intl to Key West by plane?

    There are 1704.5 mi between Denver Intl and Key West. Typically, this will take 6h 12m by plane in normal conditions.

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

    Prices for flights from Denver Intl Airport to Key West Airport are refreshed on a daily basis.

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

  • How old do you have to be to fly from Denver Intl Airport 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 Denver Intl Airport to Key West Airport.

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

    The required travel and health documents for your Key West Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Key West Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Denver to Key West?

Best airlines flying from Denver to Key West

Compare and see reviews for airlines that fly from Denver to Key West with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $230Free CancellationRating
7.1
11,472 reviews
Search American Airlines flights
DeltaPriceFrom $236Free CancellationRating
7.9
8,292 reviews
Search Delta flights
United AirlinesPriceFrom $277Free CancellationRating
7.4
9,439 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 Denver 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 Denver.

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

momondo does allow users to show only those flights to Key West from Denver which offer a flexible booking policy as well as other useful filters and features.

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

momondo provides multiple filters to help you find the best flight to Key West from Denver. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes momondo offers price alerts on flights to Key West from Denver. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 4/18
Sat 4/25
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States