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Cheap flights from Key West to Washington, D.C. from $199

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Key West to Washington, D.C. departing on 9/18. 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 Key West to Washington, D.C. (EYW-DCA)

Cheap round-trip flights

Delta Logo
2:00 pm - 9:44 pmEYW-DCA
7h 44m1 stop
Delta Logo
6:00 am - 10:55 amDCA-EYW
4h 55m1 stop
$199Delta
Find Deal
Thu, Sep 18 - Mon, Sep 22
Delta Logo
2:00 pm - 7:30 pmEYW-DCA
5h 30m1 stop
Delta Logo
6:00 am - 10:55 amDCA-EYW
4h 55m1 stop
$229Delta
Find Deal
Fri, Sep 12 - Mon, Sep 15
American Airlines Logo
12:24 pm - 3:16 pmEYW-DCA
2h 52mnonstop
American Airlines Logo
8:29 am - 11:49 amDCA-EYW
3h 20mnonstop
$244American Airlines
Find Deal
Fri, Sep 5 - Tue, Sep 9
Delta Logo
2:00 pm - 8:47 pmEYW-DCA
6h 47m1 stop
Delta Logo
6:59 am - 1:05 pmDCA-EYW
6h 06m1 stop
$258Delta
Find Deal
Fri, Sep 5 - Tue, Sep 9
American Airlines Logo
12:24 pm - 3:16 pmEYW-DCA
2h 52mnonstop
American Airlines Logo
8:29 am - 11:49 amDCA-EYW
3h 20mnonstop
$259American Airlines
Find Deal
Thu, Sep 18 - Mon, Sep 22
American Airlines Logo
12:24 pm - 3:16 pmEYW-DCA
2h 52mnonstop
American Airlines Logo
11:59 am - 5:46 pmDCA-EYW
5h 47m1 stop
$279American Airlines
Find Deal
Fri, Sep 5 - Tue, Sep 9
American Airlines Logo
4:49 pm - 11:55 pmEYW-DCA
7h 06m1 stop
American Airlines Logo
8:29 am - 11:49 amDCA-EYW
3h 20mnonstop
$309American Airlines
Find Deal
Thu, Sep 18 - Mon, Sep 22
United Airlines Logo
3:50 pm - 9:58 amEYW-DCA
18h 08m2 stops
United Airlines Logo
7:00 am - 2:55 pmDCA-EYW
7h 55m1 stop
$462United Airlines
Find Deal
Fri, Sep 12 - Mon, Sep 15
United Airlines Logo
3:50 pm - 9:58 amEYW-DCA
18h 08m2 stops
United Airlines Logo
7:00 am - 2:01 pmDCA-EYW
7h 01m1 stop
$661United Airlines
Find Deal
Fri, Sep 5 - Tue, Sep 9
United Airlines Logo
3:50 pm - 9:36 pmEYW-DCA
5h 46m1 stop
United Airlines Logo
8:30 am - 2:55 pmDCA-EYW
30h 25m3 stops
$666United Airlines
Find Deal
Fri, Sep 5 - Tue, Sep 9

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

Our best Delta deals on Key West to Washington, D.C. Reagan-National Airport flight tickets
Delta
Sep 18
EYW2:00 pmKey West
7h 44m
1 stop
DCA9:44 pmWashington, D.C. Reagan-National
Sep 22
DCA6:00 amWashington, D.C. Reagan-National
4h 55m
1 stop
EYW10:55 amKey West
$199
Find similar
Delta
Sep 12
EYW2:00 pmKey West
5h 30m
1 stop
DCA7:30 pmWashington, D.C. Reagan-National
Sep 15
DCA6:00 amWashington, D.C. Reagan-National
4h 55m
1 stop
EYW10:55 amKey West
$229
Find similar
Delta
Sep 5
EYW2:00 pmKey West
6h 47m
1 stop
DCA8:47 pmWashington, D.C. Reagan-National
Sep 9
DCA6:59 amWashington, D.C. Reagan-National
6h 06m
1 stop
EYW1:05 pmKey West
$258
Find similar

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

Our best United Airlines deals on Key West to Washington, D.C. Reagan-National Airport flight tickets
United Airlines
Sep 3
EYW3:50 pmKey West
5h 46m
1 stop
DCA9:36 pmWashington, D.C. Reagan-National
Sep 7
DCA7:00 amWashington, D.C. Reagan-National
7h 01m
1 stop
EYW2:01 pmKey West
$279
Find similar
United Airlines
Sep 12
EYW3:50 pmKey West
18h 08m
2 stops
DCA9:58 amWashington, D.C. Reagan-National
Sep 15
DCA7:00 amWashington, D.C. Reagan-National
7h 55m
1 stop
EYW2:55 pmKey West
$462
Find similar
United Airlines
Sep 3
EYW3:50 pmKey West
24h 01m
3 stops
DCA3:51 pmWashington, D.C. Reagan-National
Sep 7
DCA7:00 amWashington, D.C. Reagan-National
7h 01m
1 stop
EYW2:01 pmKey West
$503
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Key West to Washington, D.C. Reagan-National Airport 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 21, 2025.
Use the filters below to find and compare flights from Key West to Washington, D.C. Reagan-National Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Key WestWashington, D.C.

EYW - DCA

EYWDCA

Key West

Thu 9/18

2:00 pm-9:44 pm

1 stop7h 44m

Washington, D.C. Reagan-National

Mon 9/22

6:00 am-10:55 am

1 stop4h 55m

$199

Key WestWashington, D.C.

EYW - DCA

EYWDCA

Key West

Fri 9/12

2:00 pm-7:30 pm

1 stop5h 30m

Washington, D.C. Reagan-National

Mon 9/15

6:00 am-10:55 am

1 stop4h 55m

$229

Key WestWashington, D.C.

EYW - DCA

EYWDCA

Key West

Fri 9/5

12:24 pm-3:16 pm

Nonstop2h 52m

Washington, D.C. Reagan-National

Tue 9/9

8:29 am-11:49 am

Nonstop3h 20m

$244

Key WestWashington, D.C.

EYW - DCA

EYWDCA

Key West

Fri 9/5

2:00 pm-8:47 pm

1 stop6h 47m

Washington, D.C. Reagan-National

Tue 9/9

6:59 am-1:05 pm

1 stop6h 06m

$258

Key WestWashington, D.C.

EYW - DCA

EYWDCA

Key West

Thu 9/18

12:24 pm-3:16 pm

Nonstop2h 52m

Washington, D.C. Reagan-National

Mon 9/22

8:29 am-11:49 am

Nonstop3h 20m

$259

Key WestWashington, D.C.

EYW - DCA

EYWDCA

Key West

Fri 9/5

12:24 pm-3:16 pm

Nonstop2h 52m

Washington, D.C. Reagan-National

Tue 9/9

11:59 am-5:46 pm

1 stop5h 47m

$279

Key WestWashington, D.C.

EYW - DCA

EYWDCA

Key West

Thu 9/18

4:49 pm-11:55 pm

1 stop7h 06m

Washington, D.C. Reagan-National

Mon 9/22

8:29 am-11:49 am

Nonstop3h 20m

$309

Key WestWashington, D.C.

EYW - DCA

EYWDCA

Key West

Fri 9/12

3:50 pm-9:58 am

2 stops18h 08m

Washington, D.C. Reagan-National

Mon 9/15

7:00 am-2:55 pm

1 stop7h 55m

$462

Key WestWashington, D.C.

EYW - DCA

EYWDCA

Key West

Fri 9/5

3:50 pm-9:58 am

2 stops18h 08m

Washington, D.C. Reagan-National

Tue 9/9

7:00 am-2:01 pm

1 stop7h 01m

$661

Key WestWashington, D.C.

EYW - DCA

EYWDCA

Key West

Fri 9/5

3:50 pm-9:36 pm

1 stop5h 46m

Washington, D.C. Reagan-National

Tue 9/9

8:30 am-2:55 pm

3 stops30h 25m

$666

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 Washington, D.C. from

How to get the cheapest flight ticket from Key West to Washington, D.C. Reagan-National Airport

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 Washington, D.C. Reagan-National Airport?

The month of February is, on average, the cheapest month to fly to Washington, D.C. Reagan-National Airport from Key West, with most prices found around $306. If you aren’t able to travel to Washington, D.C. Reagan-National Airport during the month of February, then flying in December is also cheap. Prices for this month can be found on momondo for an average of $328.

What is the cheapest day to depart on your flight to Washington, D.C. Reagan-National Airport?

The cheapest day to depart from Key West to Washington, D.C. Reagan-National Airport is on a Thursday. Travelers who choose to depart for Washington, D.C. Reagan-National Airport on a Thursday will often find tickets for as low as $358. Flights from Key West to Washington, D.C. Reagan-National Airport on a Sunday will generally be more expensive and average around $598. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Washington, D.C. Reagan-National Airport?

Our data shows that the cheapest Key West to Washington, D.C. Reagan-National Airport flights are usually those with departure times in the afternoon. Our users have found flights to Washington, D.C. Reagan-National Airport in the afternoon for as low as $419. In contrast, the most expensive time of day to depart to Washington, D.C. Reagan-National Airport is in the morning when prices are around $434.

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

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

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

There are 3 cabin classes available to choose from on Key West to Washington, D.C. Reagan-National 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 Key West to Washington, D.C. Reagan-National Airport flights?

No. A direct flight is the cheapest option for a flight between Key West to Washington, D.C. Reagan-National Airport.

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

As of August 2025, prices for Key West to Washington, D.C. Reagan-National Airport flights are approximately 36% more expensive when compared to flights at the same time last year.

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

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

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

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

Best Price Found

$184

Fastest flight time

2h 42m

Direct flights

Mon, Tue, Wed, Fri, Sat and Sun
The best one-way flight to Washington, D.C. Reagan-National Airport from Key West in the past 72 hours is $184. The best round-trip flight deal from Key West to Washington, D.C. Reagan-National Airport found on momondo in the last 72 hours is $259.
The fastest flight from Key West to Washington, D.C. Reagan-National Airport takes 2h 42m
Direct flights go from Key West to Washington, D.C. Reagan-National Airport on Monday, Tuesday, Wednesday, Friday, Saturday and Sunday. There are no airlines offering direct flights.
Search flight deals

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

    The distance between Key West and Washington, D.C. Reagan-National is about 1025.6 mi. By plane, this route typically takes 2h 42m.

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

    Prices for flights from Key West Airport to Washington, D.C. Reagan-National Airport are refreshed on a daily basis.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Key West Airport to Washington, D.C. Reagan-National Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Reagan-National Airport?

    The required travel and health documents for your Washington, D.C. Reagan-National 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 Washington, D.C. Reagan-National 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 Key West to Washington, D.C. Reagan-National Airport?

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

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

Compare and see reviews for airlines that fly from Key West to Washington, D.C. Reagan-National Airport with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $229Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights

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

    American Airlines is one of the most popular airlines flying from Key West to Washington, D.C. Reagan-National Airport, operating 7 flights/week on average for this route. A good American Airlines flight deal for Key West to Washington, D.C. Reagan-National Airport starts from $229 round-trip, up to an average price of $386. Our users have rated American Airlines at 7.2/10.

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Gettysburg
Arlington
National Harbor
Woodbridge
Waldorf
Tysons
Silver Spring
Laurel
Colonial Beach
Fredericksburg
Manassas
Towson
Rockville
Gaithersburg
Reston
Fairfax
Glen Burnie
Springfield
Linthicum Heights

Why use momondo?

Why should I use momondo to find a flight deal from Key West to Washington, D.C.?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Key West to Washington, D.C. for you.

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

Yes. All flights to Washington, D.C. from Key West on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Key West to Washington, D.C..

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

Price alerts on flights to Washington, D.C. from Key West are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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