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Cheap flights from Washington, D.C. Reagan-National Airport to Key West from $193

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 9/16. 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

Delta Logo
1:40 pm - 8:12 pmDCA-EYW
6h 32m1 stop
Delta Logo
6:10 pm - 11:42 pmEYW-DCA
5h 32m1 stop
$249Delta
Find Deal
Wed, Sep 10 - Tue, Sep 16
Delta Logo
1:40 pm - 8:12 pmDCA-EYW
6h 32m1 stop
Delta Logo
2:00 pm - 8:47 pmEYW-DCA
6h 47m1 stop
$258Delta
Find Deal
Sat, Aug 30 - Wed, Sep 3
American Airlines Logo
12:19 pm - 3:30 pmDCA-EYW
3h 11mnonstop
American Airlines Logo
5:39 pm - 8:30 pmEYW-DCA
2h 51mnonstop
$259American Airlines
Find Deal
Sat, Jan 24 - Wed, Jan 28
Delta Logo
1:40 pm - 8:12 pmDCA-EYW
6h 32m1 stop
Delta Logo
6:20 pm - 11:46 pmEYW-DCA
5h 26m1 stop
$264Delta
Find Deal
Fri, Sep 5 - Mon, Sep 8
American Airlines Logo
11:44 am - 5:16 pmDCA-EYW
5h 32m1 stop
American Airlines Logo
5:10 pm - 7:59 pmEYW-DCA
2h 49mnonstop
$309American Airlines
Find Deal
Sat, Oct 11 - Sat, Oct 18
American Airlines Logo
1:44 pm - 4:38 pmDCA-EYW
2h 54mnonstop
American Airlines Logo
3:45 pm - 10:00 pmEYW-DCA
6h 15m1 stop
$324American Airlines
Find Deal
Sat, Sep 20 - Fri, Sep 26
United Airlines Logo
6:00 am - 2:06 pmDCA-EYW
8h 06m1 stop
United Airlines Logo
3:02 pm - 9:55 pmEYW-DCA
6h 53m1 stop
$333United Airlines
Find Deal
Sat, Dec 6 - Wed, Dec 10
American Airlines Logo
7:29 am - 10:42 amDCA-EYW
3h 13mnonstop
American Airlines Logo
11:10 am - 1:59 pmEYW-DCA
2h 49mnonstop
$344American Airlines
Find Deal
Thu, Jan 1 - Tue, Jan 6
United Airlines Logo
7:00 am - 2:06 pmDCA-EYW
7h 06m1 stop
United Airlines Logo
3:02 pm - 9:55 pmEYW-DCA
6h 53m1 stop
$369United Airlines
Find Deal
Sat, Dec 13 - Wed, Dec 17
United Airlines Logo
6:00 am - 2:29 pmDCA-EYW
8h 29m1 stop
United Airlines Logo
3:12 pm - 9:37 pmEYW-DCA
6h 25m1 stop
$404United Airlines
Find Deal
Wed, Oct 15 - Sun, Oct 19

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 24
DCA12:19 pmWashington, D.C. Reagan-National
3h 11m
EYW3:30 pmKey West
Jan 28
EYW5:39 pmKey West
2h 51m
DCA8:30 pmWashington, D.C. Reagan-National
$259
Find similar
American Airlines
Oct 11
DCA11:44 amWashington, D.C. Reagan-National
5h 32m
1 stop
EYW5:16 pmKey West
Oct 18
EYW5:10 pmKey West
2h 49m
DCA7:59 pmWashington, D.C. Reagan-National
$309
Find similar
American Airlines
Sep 20
DCA1:44 pmWashington, D.C. Reagan-National
2h 54m
EYW4:38 pmKey West
Sep 26
EYW3:45 pmKey West
6h 15m
1 stop
DCA10:00 pmWashington, D.C. Reagan-National
$324
Find similar

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

Our best United Airlines deals on Washington, D.C. Reagan-National Airport to Key West flight tickets
United Airlines
Dec 6
DCA6:00 amWashington, D.C. Reagan-National
8h 06m
1 stop
EYW2:06 pmKey West
Dec 10
EYW3:02 pmKey West
6h 53m
1 stop
DCA9:55 pmWashington, D.C. Reagan-National
$333
Find similar
United Airlines
Dec 13
DCA7:00 amWashington, D.C. Reagan-National
7h 06m
1 stop
EYW2:06 pmKey West
Dec 17
EYW3:02 pmKey West
6h 53m
1 stop
DCA9:55 pmWashington, D.C. Reagan-National
$369
Find similar
United Airlines
Oct 15
DCA6:00 amWashington, D.C. Reagan-National
8h 29m
1 stop
EYW2:29 pmKey West
Oct 19
EYW3:12 pmKey West
6h 25m
1 stop
DCA9:37 pmWashington, D.C. Reagan-National
$404
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 August 18, 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

Wed 9/10

1:40 pm-8:12 pm

1 stop6h 32m

Key West

Tue 9/16

6:10 pm-11:42 pm

1 stop5h 32m

$249

Washington, D.C.Key West

DCA - EYW

DCAEYW

Washington, D.C. Reagan-National

Sat 8/30

1:40 pm-8:12 pm

1 stop6h 32m

Key West

Wed 9/3

2:00 pm-8:47 pm

1 stop6h 47m

$258

Washington, D.C.Key West

DCA - EYW

DCAEYW

Washington, D.C. Reagan-National

Sat 1/24

12:19 pm-3:30 pm

Nonstop3h 11m

Key West

Wed 1/28

5:39 pm-8:30 pm

Nonstop2h 51m

$259

Washington, D.C.Key West

DCA - EYW

DCAEYW

Washington, D.C. Reagan-National

Fri 9/5

1:40 pm-8:12 pm

1 stop6h 32m

Key West

Mon 9/8

6:20 pm-11:46 pm

1 stop5h 26m

$264

Washington, D.C.Key West

DCA - EYW

DCAEYW

Washington, D.C. Reagan-National

Sat 10/11

11:44 am-5:16 pm

1 stop5h 32m

Key West

Sat 10/18

5:10 pm-7:59 pm

Nonstop2h 49m

$309

Washington, D.C.Key West

DCA - EYW

DCAEYW

Washington, D.C. Reagan-National

Sat 9/20

1:44 pm-4:38 pm

Nonstop2h 54m

Key West

Fri 9/26

3:45 pm-10:00 pm

1 stop6h 15m

$324

Washington, D.C.Key West

DCA - EYW

DCAEYW

Washington, D.C. Reagan-National

Sat 12/6

6:00 am-2:06 pm

1 stop8h 06m

Key West

Wed 12/10

3:02 pm-9:55 pm

1 stop6h 53m

$333

Washington, D.C.Key West

DCA - EYW

DCAEYW

Washington, D.C. Reagan-National

Thu 1/1

7:29 am-10:42 am

Nonstop3h 13m

Key West

Tue 1/6

11:10 am-1:59 pm

Nonstop2h 49m

$344

Washington, D.C.Key West

DCA - EYW

DCAEYW

Washington, D.C. Reagan-National

Sat 12/13

7:00 am-2:06 pm

1 stop7h 06m

Key West

Wed 12/17

3:02 pm-9:55 pm

1 stop6h 53m

$369

Washington, D.C.Key West

DCA - EYW

DCAEYW

Washington, D.C. Reagan-National

Wed 10/15

6:00 am-2:29 pm

1 stop8h 29m

Key West

Sun 10/19

3:12 pm-9:37 pm

1 stop6h 25m

$404

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, January 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 $409. If you are unable to visit Key West during the month of January, then departing from Washington, D.C. Reagan-National Airport during the month February is also very affordable. Most momondo users find prices during this month for around $423.

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 $542.

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 $481 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 $359 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 59% 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 August 2025, prices for Washington, D.C. Reagan-National Airport to Key West flights are approximately 3% 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

$193

Fastest flight time

2h 54m

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 $193. 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 $249.
The fastest flight from Washington, D.C. Reagan-National Airport to Key West takes 2h 54m
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 54m.

  • 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
8.0
7,981 reviews
Search Delta flights
United AirlinesPriceFrom $229Free CancellationRating
7.4
8,925 reviews
Search United Airlines flights
American AirlinesPriceFrom $268Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights

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

    Across 7 American Airlines flights from Washington, D.C. Reagan-National Airport to Key West this week, the average price was $475, with the best American Airlines deals starting from $268 round-trip. 10,000 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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