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Cheap flights from Washington, D.C. Reagan-National Airport to Key West from $149

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Reagan-National Airport to Key West departing on 3/31. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Washington, D.C. Reagan-National Airport to Key West

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
12:19 pm - 3:26 pm
DCA
-
EYW
3h 07mnonstop
American Airlines Logo
3:56 pm - 9:14 pm
EYW
-
DCA
5h 18m
1 stop
$296American Airlines
Wed, Mar 18 - Wed, Mar 25
Delta Logo
1:40 pm - 7:41 pm
DCA
-
EYW
6h 01m
1 stop
Delta Logo
7:33 am - 12:40 pm
EYW
-
DCA
5h 07m
1 stop
$299Delta
Mon, Apr 6 - Thu, Apr 16
Delta Logo
6:00 am - 10:48 am
DCA
-
EYW
4h 48m
1 stop
Delta Logo
2:40 pm - 9:34 pm
EYW
-
DCA
6h 54m
1 stop
$304Delta
Tue, Apr 7 - Tue, Apr 14
American Airlines Logo
8:55 am - 12:00 pm
DCA
-
EYW
3h 05mnonstop
American Airlines Logo
3:56 pm - 8:13 pm
EYW
-
DCA
4h 17m
1 stop
$307American Airlines
Mon, Mar 23 - Fri, Mar 27
American Airlines Logo
12:14 pm - 3:24 pm
DCA
-
EYW
3h 10mnonstop
American Airlines Logo
12:04 pm - 2:52 pm
EYW
-
DCA
2h 48mnonstop
$313American Airlines
Mon, Apr 20 - Mon, Apr 27
American Airlines Logo
6:09 am - 1:48 pm
DCA
-
EYW
7h 39m
1 stop
American Airlines Logo
12:02 pm - 2:47 pm
EYW
-
DCA
2h 45mnonstop
$314American Airlines
Thu, Feb 19 - Thu, Feb 26
American Airlines Logo
12:14 pm - 3:21 pm
DCA
-
EYW
3h 07mnonstop
American Airlines Logo
12:02 pm - 2:47 pm
EYW
-
DCA
2h 45mnonstop
$315American Airlines
Wed, Mar 4 - Wed, Mar 11
American Airlines Logo
5:00 am - 11:11 am
DCA
-
EYW
6h 11m
1 stop
American Airlines Logo
3:56 pm - 8:13 pm
EYW
-
DCA
4h 17m
1 stop
$317American Airlines
Mon, Mar 23 - Fri, Mar 27
American Airlines Logo
8:20 am - 11:39 am
DCA
-
EYW
3h 19mnonstop
American Airlines Logo
12:09 pm - 3:08 pm
EYW
-
DCA
2h 59mnonstop
$321American Airlines
Sat, Aug 1 - Tue, Aug 4
Delta Logo
6:09 am - 7:49 pm
DCA
-
EYW
13h 40m
2 stops
Delta Logo
2:00 pm - 9:45 pm
EYW
-
DCA
7h 45m
1 stop
$328Delta
Wed, May 13 - Wed, May 20

Delta flights from Washington, D.C. Reagan-National Airport to Key West

Our best Delta deals on Washington, D.C. Reagan-National Airport to Key West flight tickets
Delta
Apr 6
DCA1:40 pmWashington, D.C. Reagan-National
6h 01m
1 stop
EYW7:41 pmKey West
Apr 16
EYW7:33 amKey West
5h 07m
1 stop
DCA12:40 pmWashington, D.C. Reagan-National
$299
Delta
Apr 7
DCA12:10 pmWashington, D.C. Reagan-National
7h 31m
1 stop
EYW7:41 pmKey West
Apr 14
EYW2:40 pmKey West
6h 54m
1 stop
DCA9:34 pmWashington, D.C. Reagan-National
$304
Delta
Feb 14
DCA1:40 pmWashington, D.C. Reagan-National
6h 02m
1 stop
EYW7:42 pmKey West
Mar 4
EYW5:56 pmKey West
5h 36m
1 stop
DCA11:32 pmWashington, D.C. Reagan-National
$324

American Airlines flights from Washington, D.C. Reagan-National Airport to Key West

Our best American Airlines deals on Washington, D.C. Reagan-National Airport to Key West flight tickets
American Airlines
Mar 18
DCA12:19 pmWashington, D.C. Reagan-National
3h 07m
EYW3:26 pmKey West
Mar 25
EYW3:56 pmKey West
5h 18m
1 stop
DCA9:14 pmWashington, D.C. Reagan-National
$296
American Airlines
Mar 16
DCA8:55 amWashington, D.C. Reagan-National
3h 05m
EYW12:00 pmKey West
Mar 20
EYW7:42 pmKey West
4h 56m
1 stop
DCA12:38 amWashington, D.C. Reagan-National
$307
American Airlines
Apr 20
DCA12:14 pmWashington, D.C. Reagan-National
3h 10m
EYW3:24 pmKey West
Apr 27
EYW12:04 pmKey West
2h 48m
DCA2:52 pmWashington, D.C. Reagan-National
$313

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Reagan-National Airport 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 February 8, 2026.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Key West that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Key West

DCA - EYW

DCAEYW

Washington, D.C. Reagan-National

Wed 3/18

12:19 pm-3:26 pm

Nonstop3h 07m

Key West

Wed 3/25

3:56 pm-9:14 pm

1 stop5h 18m

$296

Washington, D.C.Key West

DCA - EYW

DCAEYW

Washington, D.C. Reagan-National

Mon 4/6

1:40 pm-7:41 pm

1 stop6h 01m

Key West

Thu 4/16

7:33 am-12:40 pm

1 stop5h 07m

$299

Washington, D.C.Key West

DCA - EYW

DCAEYW

Washington, D.C. Reagan-National

Tue 4/7

6:00 am-10:48 am

1 stop4h 48m

Key West

Tue 4/14

2:40 pm-9:34 pm

1 stop6h 54m

$304

Washington, D.C.Key West

DCA - EYW

DCAEYW

Washington, D.C. Reagan-National

Mon 3/23

8:55 am-12:00 pm

Nonstop3h 05m

Key West

Fri 3/27

3:56 pm-8:13 pm

1 stop4h 17m

$307

Washington, D.C.Key West

DCA - EYW

DCAEYW

Washington, D.C. Reagan-National

Mon 4/20

12:14 pm-3:24 pm

Nonstop3h 10m

Key West

Mon 4/27

12:04 pm-2:52 pm

Nonstop2h 48m

$313

Washington, D.C.Key West

DCA - EYW

DCAEYW

Washington, D.C. Reagan-National

Thu 2/19

6:09 am-1:48 pm

1 stop7h 39m

Key West

Thu 2/26

12:02 pm-2:47 pm

Nonstop2h 45m

$314

Washington, D.C.Key West

DCA - EYW

DCAEYW

Washington, D.C. Reagan-National

Wed 3/4

12:14 pm-3:21 pm

Nonstop3h 07m

Key West

Wed 3/11

12:02 pm-2:47 pm

Nonstop2h 45m

$315

Washington, D.C.Key West

DCA - EYW

DCAEYW

Washington, D.C. Reagan-National

Mon 3/23

5:00 am-11:11 am

1 stop6h 11m

Key West

Fri 3/27

3:56 pm-8:13 pm

1 stop4h 17m

$317

Washington, D.C.Key West

DCA - EYW

DCAEYW

Washington, D.C. Reagan-National

Sat 8/1

8:20 am-11:39 am

Nonstop3h 19m

Key West

Tue 8/4

12:09 pm-3:08 pm

Nonstop2h 59m

$321

Washington, D.C.Key West

DCA - EYW

DCAEYW

Washington, D.C. Reagan-National

Wed 5/13

6:09 am-7:49 pm

2 stops13h 40m

Key West

Wed 5/20

2:00 pm-9:45 pm

1 stop7h 45m

$328

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 Washington, D.C. Reagan-National Airport 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, September is the cheapest month to fly from Washington, D.C. Reagan-National Airport to Key West. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $341. If you are unable to visit Key West during the month of September, then departing from Washington, D.C. Reagan-National Airport during the month March is also very affordable. Most momondo users find prices during this month for around $394.

What is the cheapest day to depart on your flight to Key West?

On average, the least expensive day to fly to Key West from Washington, D.C. Reagan-National Airport is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $366. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Washington, D.C. Reagan-National Airport to Key West for around $521.

What is the cheapest time of day to depart on your flight to Key West?

According to our data, the cheapest time of day to fly to Key West is at noon. momondo users have found flights departing from Washington, D.C. Reagan-National Airport to Key West at noon for as low as $381. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Key West are more costly in the morning, with an average ticket price of $464. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Washington, D.C. Reagan-National to Key West flight route?

Fly from Washington, D.C. Reagan-National to Key West for the best Washington, D.C. Reagan-National - Key West flight prices

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

You are more likely to see cheaper flights to Key West from Washington, D.C. Reagan-National Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Key West for around $448 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Key West from Washington, D.C. Reagan-National Airport for as low as $355 on momondo.

What cabin class options are available on Washington, D.C. Reagan-National to Key West flights?

There are 3 cabin classes available to choose from on Washington, D.C. Reagan-National to Key West flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Washington, D.C. Reagan-National Airport to Key West flights?

You could potentially save up to 33% on your flight if you consider stops on a Washington, D.C. Reagan-National Airport to Key West flight.

How have Washington, D.C. Reagan-National Airport to Key West flight prices changed over time?

As of February 2026, prices for Washington, D.C. Reagan-National Airport to Key West flights are approximately 21% cheaper when compared to flights at the same time last year.

When to book flights from Washington, D.C. Reagan-National Airport to Key West

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

Cheap Washington, D.C. Reagan-National Airport to Key West (DCA to EYW) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Reagan-National Airport to Key West

Best Price Found

$282

Fastest flight time

3h 00m

Direct flights

Every day

Airports in Key West

1 airport
The best one-way flight to Key West from Washington, D.C. Reagan-National Airport in the past 72 hours is $282. The best round-trip flight deal from Washington, D.C. Reagan-National Airport to Key West found on momondo in the last 72 hours is $344.
The fastest flight from Washington, D.C. Reagan-National Airport to Key West takes 3h 00m
Direct flights go from Washington, D.C. Reagan-National Airport to Key West every day.
There is 1 airport in Key West. From Washington, D.C. Reagan-National Airport there are direct flights to Key West (EYW).
Search flight deals

  • How far is Washington, D.C. Reagan-National to Key West by plane?

    The straight-line distance from Washington, D.C. Reagan-National to Key West is 1025.6 mi. In terms of flight time, this usually takes a little over 3h 00m.

  • When did momondo last update prices for flights from Washington, D.C. Reagan-National Airport to Key West Airport?

    Prices for flights from Washington, D.C. Reagan-National Airport to Key West Airport refresh daily.

  • How many operators does momondo search for flights from Washington, D.C. Reagan-National Airport to Key West Airport?

  • How old do you have to be to fly from Washington, D.C. Reagan-National 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 Washington, D.C. Reagan-National 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 plane model from Washington, D.C. Reagan-National Airport to Key West?

  • What is the most popular airline from Washington, D.C. Reagan-National Airport to Key West?

Best airlines flying from Washington, D.C. Reagan-National Airport to Key West

Compare and see reviews for airlines that fly from Washington, D.C. Reagan-National Airport to Key West with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $175Free CancellationRating
7.9
8,172 reviews
Search Delta flights
American AirlinesPriceFrom $263Free CancellationRating
7.2
11,249 reviews
Search American Airlines flights

  • American Airlines Flights From Washington, D.C. Reagan-National Airport to Key West

    Across 11 American Airlines flights from Washington, D.C. Reagan-National Airport to Key West this week, the average price was $446, with the best American Airlines deals starting from $263 round-trip. 11,249 users have rated American Airlines on momondo, with an average score of 7.2/10.

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 Washington, D.C. 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 Washington, D.C..

Can I find flights from Washington, D.C. to Key West with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Key West from Washington, D.C. with this policy.

How can momondo help me find flights from Washington, D.C. to Key West?

Once all potential Washington, D.C. to Key West flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

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

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