Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Denver to Key West from $150

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 9/5. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Denver to Key West

Cheap round-trip flights

Enter your travel dates to find the best prices.
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
$270Allegiant Air
Thu, Aug 13 - Sun, Aug 16
Delta Logo
12:50 am - 10:50 am
DEN
-
EYW
8h 00m
1 stop
Delta Logo
6:15 pm - 11:02 pm
EYW
-
DEN
6h 47m
1 stop
$295Delta
Mon, Aug 3 - Tue, Aug 11
Multiple Airlines Logo
6:30 am - 7:13 pm
DEN
-
EYW
34h 43m
2 stops
Multiple Airlines Logo
10:55 am - 7:13 am
EYW
-
DEN
22h 18m
1 stop
$304Multiple Airlines
Wed, Jul 22 - Thu, Jul 30
Multiple Airlines Logo
7:00 am - 11:25 am
DEN
-
EYW
26h 25m
2 stops
Multiple Airlines Logo
10:55 am - 7:13 am
EYW
-
DEN
22h 18m
1 stop
$309Multiple Airlines
Sat, Jul 25 - Thu, Jul 30
Multiple Airlines Logo
1:22 pm - 10:06 am
DEN
-
EYW
18h 44m
1 stop
Multiple Airlines Logo
11:46 am - 10:10 pm
EYW
-
DEN
12h 24m
2 stops
$311Multiple Airlines
Sat, Aug 15 - Wed, Aug 19
Delta Logo
12:50 am - 10:50 am
DEN
-
EYW
8h 00m
1 stop
Delta Logo
6:15 pm - 11:02 pm
EYW
-
DEN
6h 47m
1 stop
$322Delta
Mon, Aug 3 - Tue, Aug 11
Allegiant Air Logo
9:01 am - 9:41 am
DEN
-
EYW
22h 40m
1 stop
Allegiant Air Logo
10:55 am - 7:13 am
EYW
-
DEN
22h 18m
1 stop
$323Allegiant Air
Thu, Jul 23 - Thu, Jul 30
Multiple Airlines Logo
5:05 am - 7:13 pm
DEN
-
EYW
36h 08m
2 stops
Multiple Airlines Logo
10:55 am - 7:13 am
EYW
-
DEN
22h 18m
1 stop
$326Multiple Airlines
Sat, Jul 25 - Thu, Jul 30
Multiple Airlines Logo
11:59 pm - 7:13 pm
DEN
-
EYW
17h 14m
1 stop
Multiple Airlines Logo
10:55 am - 7:13 am
EYW
-
DEN
22h 18m
1 stop
$329Multiple Airlines
Wed, Jul 22 - Thu, Jul 30
Multiple Airlines Logo
1:22 pm - 10:06 am
DEN
-
EYW
18h 44m
1 stop
Multiple Airlines Logo
11:46 am - 10:10 pm
EYW
-
DEN
12h 24m
2 stops
$332Multiple Airlines
Sat, Aug 15 - Wed, Aug 19

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

Allegiant Air flights from Denver to Key West

Our best Allegiant Air deals on Denver to Key West flight tickets
Allegiant Air
Aug 13
DEN9:11 amDenver Intl
22h 30m
1 stop
EYW9:41 amKey West
Aug 16
EYW10:56 amKey West
22h 36m
1 stop
DEN7:32 amDenver Intl
$270
Allegiant Air
Jul 23
DEN9:01 amDenver Intl
22h 40m
1 stop
EYW9:41 amKey West
Jul 30
EYW10:55 amKey West
22h 18m
1 stop
DEN7:13 amDenver Intl
$323
Allegiant Air
Jul 4
DEN3:47 pmDenver Intl
16h 18m
1 stop
EYW10:05 amKey West
Jul 9
EYW10:55 amKey West
22h 18m
1 stop
DEN7:13 amDenver Intl
$388

American Airlines flights from Denver to Key West

Our best American Airlines deals on Denver to Key West flight tickets
American Airlines
Jul 21
DEN7:22 amDenver Intl
7h 32m
1 stop
EYW4:54 pmKey West
Jul 28
EYW2:21 pmKey West
7h 20m
1 stop
DEN7:41 pmDenver Intl
$349
American Airlines
Jul 3
DEN6:20 amDenver Intl
8h 34m
1 stop
EYW4:54 pmKey West
Jul 11
EYW4:16 pmKey West
10h 01m
1 stop
DEN12:17 amDenver Intl
$355
American Airlines
Sep 1
DEN11:55 pmDenver Intl
7h 49m
1 stop
EYW9:44 amKey West
Sep 8
EYW1:50 pmKey West
7h 29m
1 stop
DEN7:19 pmDenver Intl
$365

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 June 28, 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

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

$270
Quickest round-trip

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Mon 8/3

12:50 am-10:50 am

1 stop8h 00m

Key West

Tue 8/11

6:15 pm-11:02 pm

1 stop6h 47m

$295

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Wed 7/22

6:30 am-7:13 pm

2 stops34h 43m

Key West

Thu 7/30

10:55 am-7:13 am

1 stop22h 18m

$304

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Sat 7/25

7:00 am-11:25 am

2 stops26h 25m

Key West

Thu 7/30

10:55 am-7:13 am

1 stop22h 18m

$309

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Sat 8/15

1:22 pm-10:06 am

1 stop18h 44m

Key West

Wed 8/19

11:46 am-10:10 pm

2 stops12h 24m

$311

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Mon 8/3

12:50 am-10:50 am

1 stop8h 00m

Key West

Tue 8/11

6:15 pm-11:02 pm

1 stop6h 47m

$322

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Thu 7/23

9:01 am-9:41 am

1 stop22h 40m

Key West

Thu 7/30

10:55 am-7:13 am

1 stop22h 18m

$323

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Sat 7/25

5:05 am-7:13 pm

2 stops36h 08m

Key West

Thu 7/30

10:55 am-7:13 am

1 stop22h 18m

$326

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Wed 7/22

11:59 pm-7:13 pm

1 stop17h 14m

Key West

Thu 7/30

10:55 am-7:13 am

1 stop22h 18m

$329

DenverKey West

DEN - EYW

DENEYW

Denver Intl

Sat 8/15

1:22 pm-10:06 am

1 stop18h 44m

Key West

Wed 8/19

11:46 am-10:10 pm

2 stops12h 24m

$332

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 typical price of a round-trip flight between Denver and Key West?

What is the cheapest month to fly to Key West?

In general, January 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 $326. If you are unable to visit Key West during the month of January, then departing from Denver during the month September is also very affordable. Most momondo users find prices during this month for around $331.

How far in advance should I book a flight from Denver 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 $394 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 $333 on momondo.

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

You could potentially save up to 27% 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

5h 43m

Direct flights

None
The fastest flight from Denver to Key West takes 5h 43m
There are no direct flights from Denver to Key West. There are no popular flight routes from Denver to Key West.
Search flight deals

Frequently asked questions about flying from Denver to Key West

  • 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 5h 43m 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 $233Free CancellationRating
7.1
11,776 reviews
Search American Airlines flights
DeltaPriceFrom $236Free CancellationRating
7.8
8,455 reviews
Search Delta flights
United AirlinesPriceFrom $277Free CancellationRating
7.4
9,899 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
Tue 7/28
Tue 8/4
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States