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Cheap flights from Washington, D.C. Reagan-National Airport to Key West from $116

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 12/2. 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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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
12:25 pm - 3:33 pmDCA-EYW
3h 08mnonstop
American Airlines Logo
5:21 pm - 8:04 pmEYW-DCA
2h 43mnonstop
$279American Airlines
Find Deal
Thu, Jan 1 - Tue, Jan 6
Delta Logo
1:46 pm - 7:53 pmDCA-EYW
6h 07m1 stop
Delta Logo
6:18 pm - 11:41 pmEYW-DCA
5h 23m1 stop
$289Delta
Find Deal
Sat, Nov 15 - Tue, Nov 18
American Airlines Logo
7:40 am - 10:47 amDCA-EYW
3h 07mnonstop
American Airlines Logo
11:17 am - 2:10 pmEYW-DCA
2h 53mnonstop
$294American Airlines
Find Deal
Sat, Nov 15 - Tue, Nov 18
American Airlines Logo
12:25 pm - 3:24 pmDCA-EYW
2h 59mnonstop
American Airlines Logo
5:29 pm - 8:19 pmEYW-DCA
2h 50mnonstop
$295American Airlines
Find Deal
Wed, Dec 3 - Sat, Dec 6
Delta Logo
10:20 am - 5:23 pmDCA-EYW
7h 03m1 stop
Delta Logo
7:40 am - 3:00 pmEYW-DCA
7h 20m1 stop
$299Delta
Find Deal
Wed, Nov 12 - Sat, Nov 15
Delta Logo
7:59 am - 2:03 pmDCA-EYW
6h 04m1 stop
Delta Logo
6:18 pm - 11:41 pmEYW-DCA
5h 23m1 stop
$304Delta
Find Deal
Mon, Nov 17 - Sun, Nov 23
American Airlines Logo
11:59 am - 3:06 pmDCA-EYW
3h 07mnonstop
American Airlines Logo
1:33 pm - 8:25 pmEYW-DCA
6h 52m1 stop
$305American Airlines
Find Deal
Tue, Dec 2 - Tue, Dec 9
United Airlines Logo
7:00 am - 2:04 pmDCA-EYW
7h 04m1 stop
United Airlines Logo
3:00 pm - 9:34 pmEYW-DCA
6h 34m1 stop
$354United Airlines
Find Deal
Tue, Nov 18 - Fri, Nov 21
United Airlines Logo
7:00 am - 2:04 pmDCA-EYW
7h 04m1 stop
United Airlines Logo
3:00 pm - 9:34 pmEYW-DCA
6h 34m1 stop
$377United Airlines
Find Deal
Mon, Nov 17 - Fri, Nov 21
United Airlines Logo
7:00 am - 2:04 pmDCA-EYW
7h 04m1 stop
United Airlines Logo
3:00 pm - 9:34 pmEYW-DCA
6h 34m1 stop
$394United Airlines
Find Deal
Tue, Nov 18 - Wed, Nov 26

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
Jan 1
DCA12:25 pmWashington, D.C. Reagan-National
3h 08m
EYW3:33 pmKey West
Jan 6
EYW5:21 pmKey West
2h 43m
DCA8:04 pmWashington, D.C. Reagan-National
$279
Find similar
American Airlines
Nov 15
DCA7:40 amWashington, D.C. Reagan-National
3h 07m
EYW10:47 amKey West
Nov 18
EYW11:17 amKey West
2h 53m
DCA2:10 pmWashington, D.C. Reagan-National
$294
Find similar
American Airlines
Dec 3
DCA12:25 pmWashington, D.C. Reagan-National
2h 59m
EYW3:24 pmKey West
Dec 6
EYW5:29 pmKey West
2h 50m
DCA8:19 pmWashington, D.C. Reagan-National
$295
Find similar

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
Nov 15
DCA1:46 pmWashington, D.C. Reagan-National
6h 07m
1 stop
EYW7:53 pmKey West
Nov 18
EYW6:18 pmKey West
5h 23m
1 stop
DCA11:41 pmWashington, D.C. Reagan-National
$289
Find similar
Delta
Nov 12
DCA10:20 amWashington, D.C. Reagan-National
7h 03m
1 stop
EYW5:23 pmKey West
Nov 15
EYW7:40 amKey West
7h 20m
1 stop
DCA3:00 pmWashington, D.C. Reagan-National
$299
Find similar
Delta
Nov 17
DCA7:59 amWashington, D.C. Reagan-National
6h 04m
1 stop
EYW2:03 pmKey West
Nov 23
EYW6:18 pmKey West
5h 23m
1 stop
DCA11:41 pmWashington, D.C. Reagan-National
$304
Find similar

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 October 28, 2025.
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

Thu 1/1

12:25 pm-3:33 pm

Nonstop3h 08m

Key West

Tue 1/6

5:21 pm-8:04 pm

Nonstop2h 43m

$279

Washington, D.C.Key West

DCA - EYW

DCAEYW

Washington, D.C. Reagan-National

Sat 11/15

1:46 pm-7:53 pm

1 stop6h 07m

Key West

Tue 11/18

6:18 pm-11:41 pm

1 stop5h 23m

$289

Washington, D.C.Key West

DCA - EYW

DCAEYW

Washington, D.C. Reagan-National

Sat 11/15

7:40 am-10:47 am

Nonstop3h 07m

Key West

Tue 11/18

11:17 am-2:10 pm

Nonstop2h 53m

$294

Washington, D.C.Key West

DCA - EYW

DCAEYW

Washington, D.C. Reagan-National

Wed 12/3

12:25 pm-3:24 pm

Nonstop2h 59m

Key West

Sat 12/6

5:29 pm-8:19 pm

Nonstop2h 50m

$295

Washington, D.C.Key West

DCA - EYW

DCAEYW

Washington, D.C. Reagan-National

Wed 11/12

10:20 am-5:23 pm

1 stop7h 03m

Key West

Sat 11/15

7:40 am-3:00 pm

1 stop7h 20m

$299

Washington, D.C.Key West

DCA - EYW

DCAEYW

Washington, D.C. Reagan-National

Mon 11/17

7:59 am-2:03 pm

1 stop6h 04m

Key West

Sun 11/23

6:18 pm-11:41 pm

1 stop5h 23m

$304

Washington, D.C.Key West

DCA - EYW

DCAEYW

Washington, D.C. Reagan-National

Tue 12/2

11:59 am-3:06 pm

Nonstop3h 07m

Key West

Tue 12/9

1:33 pm-8:25 pm

1 stop6h 52m

$305

Washington, D.C.Key West

DCA - EYW

DCAEYW

Washington, D.C. Reagan-National

Tue 11/18

7:00 am-2:04 pm

1 stop7h 04m

Key West

Fri 11/21

3:00 pm-9:34 pm

1 stop6h 34m

$354

Washington, D.C.Key West

DCA - EYW

DCAEYW

Washington, D.C. Reagan-National

Mon 11/17

7:00 am-2:04 pm

1 stop7h 04m

Key West

Fri 11/21

3:00 pm-9:34 pm

1 stop6h 34m

$377

Washington, D.C.Key West

DCA - EYW

DCAEYW

Washington, D.C. Reagan-National

Tue 11/18

7:00 am-2:04 pm

1 stop7h 04m

Key West

Wed 11/26

3:00 pm-9:34 pm

1 stop6h 34m

$394

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 $354. 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 January is also very affordable. Most momondo users find prices during this month for around $406.

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 Sunday, 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 $527.

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 in the afternoon. momondo users have found flights departing from Washington, D.C. Reagan-National Airport to Key West in the afternoon for as low as $340. 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 evening, with an average ticket price of $559. Departure times in the evening 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 $455 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 $376 on momondo.

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

There are 2 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 36% 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 October 2025, prices for Washington, D.C. Reagan-National Airport to Key West flights are approximately 41% 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

$329

Fastest flight time

2h 57m

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 $329. 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 $335.
The fastest flight from Washington, D.C. Reagan-National Airport to Key West takes 2h 57m
Direct flights go from Washington, D.C. Reagan-National Airport to Key West every day.
There is 1 airport near Key West: 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 2h 57m.

  • 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 $117Free CancellationRating
7.9
7,994 reviews
Search Delta flights
United AirlinesPriceFrom $229Free CancellationRating
7.4
9,001 reviews
Search United Airlines flights
American AirlinesPriceFrom $268Free CancellationRating
7.2
11,032 reviews
Search American Airlines flights

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

    Across 3 American Airlines flights from Washington, D.C. Reagan-National Airport to Key West this week, the average price was $452, with the best American Airlines deals starting from $268 round-trip. 11,032 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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