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Cheap flights from Key West to Washington, D.C. from $191

This is the cheapest one-way 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 8/21. 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 Key West to Washington, D.C.

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
2:24 pm - 9:49 pm
EYW
-
DCA
7h 25m
1 stop
Delta Logo
6:00 am - 11:00 am
DCA
-
EYW
5h 00m
1 stop
$309Delta
Fri, Jul 24 - Sun, Jul 26
Delta Logo
6:15 pm - 11:48 pm
EYW
-
DCA
5h 33m
1 stop
Delta Logo
6:00 am - 10:50 am
DCA
-
EYW
4h 50m
1 stop
$334Delta
Thu, Aug 13 - Sun, Aug 16
Delta Logo
2:24 pm - 7:48 pm
EYW
-
DCA
5h 24m
1 stop
Delta Logo
9:00 am - 1:23 pm
DCA
-
EYW
4h 23m
1 stop
$359Delta
Fri, Jul 10 - Tue, Jul 14
Delta Logo
6:00 pm - 11:18 pm
EYW
-
DCA
5h 18m
1 stop
Delta Logo
6:00 am - 10:58 am
DCA
-
EYW
4h 58m
1 stop
$364Delta
Fri, Oct 23 - Mon, Oct 26
American Airlines Logo
2:30 pm - 5:29 pm
EYW
-
DCA
2h 59mnonstop
American Airlines Logo
10:30 am - 1:51 pm
DCA
-
EYW
3h 21mnonstop
$383American Airlines
Sat, Sep 12 - Sat, Sep 19
American Airlines Logo
6:27 pm - 11:59 pm
EYW
-
DCA
5h 32m
1 stop
American Airlines Logo
10:30 am - 1:51 pm
DCA
-
EYW
3h 21mnonstop
$393American Airlines
Sat, Sep 12 - Sat, Sep 19
Delta Logo
11:45 am - 6:14 pm
EYW
-
DCA
6h 29m
1 stop
Delta Logo
6:00 am - 10:58 am
DCA
-
EYW
4h 58m
1 stop
$394Delta
Thu, Oct 8 - Sun, Oct 11
Delta Logo
1:59 pm - 9:45 pm
EYW
-
DCA
7h 46m
1 stop
Delta Logo
10:10 am - 5:20 pm
DCA
-
EYW
7h 10m
1 stop
$401Delta
Mon, Aug 3 - Fri, Aug 14
Delta Logo
6:18 pm - 11:52 pm
EYW
-
DCA
5h 34m
1 stop
Delta Logo
1:42 pm - 7:51 pm
DCA
-
EYW
6h 09m
1 stop
$409Delta
Wed, Jul 8 - Tue, Jul 14
American Airlines Logo
12:06 pm - 3:08 pm
EYW
-
DCA
3h 02mnonstop
American Airlines Logo
8:20 am - 11:36 am
DCA
-
EYW
3h 16mnonstop
$428American Airlines
Wed, Sep 2 - Mon, Sep 7

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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
Jul 24
EYW2:24 pmKey West
7h 25m
1 stop
DCA9:49 pmWashington, D.C. Reagan-National
Jul 26
DCA6:00 amWashington, D.C. Reagan-National
5h 00m
1 stop
EYW11:00 amKey West
$309
Delta
Aug 13
EYW6:15 pmKey West
5h 33m
1 stop
DCA11:48 pmWashington, D.C. Reagan-National
Aug 16
DCA6:00 amWashington, D.C. Reagan-National
4h 50m
1 stop
EYW10:50 amKey West
$334
Delta
Jul 10
EYW2:24 pmKey West
5h 24m
1 stop
DCA7:48 pmWashington, D.C. Reagan-National
Jul 14
DCA9:00 amWashington, D.C. Reagan-National
4h 23m
1 stop
EYW1:23 pmKey West
$359

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
Jul 9
EYW2:26 pmKey West
7h 27m
1 stop
DCA9:53 pmWashington, D.C. Reagan-National
Jul 13
DCA6:00 amWashington, D.C. Reagan-National
7h 30m
1 stop
EYW1:30 pmKey West
$499
United Airlines
Dec 2
EYW2:30 pmKey West
8h 01m
1 stop
DCA10:31 pmWashington, D.C. Reagan-National
Dec 5
DCA8:00 pmWashington, D.C. Reagan-National
17h 02m
1 stop
EYW1:02 pmKey West
$518
United Airlines
Dec 2
EYW2:30 pmKey West
8h 01m
1 stop
DCA10:31 pmWashington, D.C. Reagan-National
Dec 5
DCA5:00 pmWashington, D.C. Reagan-National
20h 02m
2 stops
EYW1:02 pmKey West
$527

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 June 27, 2026.
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

Cheapest round-trip

Key WestWashington, D.C.

EYW - DCA

EYWDCA

Key West

Fri 7/24

2:24 pm-9:49 pm

1 stop7h 25m

Washington, D.C. Reagan-National

Sun 7/26

6:00 am-11:00 am

1 stop5h 00m

$309

Key WestWashington, D.C.

EYW - DCA

EYWDCA

Key West

Thu 8/13

6:15 pm-11:48 pm

1 stop5h 33m

Washington, D.C. Reagan-National

Sun 8/16

6:00 am-10:50 am

1 stop4h 50m

$334

Key WestWashington, D.C.

EYW - DCA

EYWDCA

Key West

Fri 7/10

2:24 pm-7:48 pm

1 stop5h 24m

Washington, D.C. Reagan-National

Tue 7/14

9:00 am-1:23 pm

1 stop4h 23m

$359

Key WestWashington, D.C.

EYW - DCA

EYWDCA

Key West

Fri 10/23

6:00 pm-11:18 pm

1 stop5h 18m

Washington, D.C. Reagan-National

Mon 10/26

6:00 am-10:58 am

1 stop4h 58m

$364

Key WestWashington, D.C.

EYW - DCA

EYWDCA

Key West

Sat 9/12

2:30 pm-5:29 pm

Nonstop2h 59m

Washington, D.C. Reagan-National

Sat 9/19

10:30 am-1:51 pm

Nonstop3h 21m

$383

Key WestWashington, D.C.

EYW - DCA

EYWDCA

Key West

Sat 9/12

6:27 pm-11:59 pm

1 stop5h 32m

Washington, D.C. Reagan-National

Sat 9/19

10:30 am-1:51 pm

Nonstop3h 21m

$393

Key WestWashington, D.C.

EYW - DCA

EYWDCA

Key West

Thu 10/8

11:45 am-6:14 pm

1 stop6h 29m

Washington, D.C. Reagan-National

Sun 10/11

6:00 am-10:58 am

1 stop4h 58m

$394

Key WestWashington, D.C.

EYW - DCA

EYWDCA

Key West

Mon 8/3

1:59 pm-9:45 pm

1 stop7h 46m

Washington, D.C. Reagan-National

Fri 8/14

10:10 am-5:20 pm

1 stop7h 10m

$401

Key WestWashington, D.C.

EYW - DCA

EYWDCA

Key West

Wed 7/8

6:18 pm-11:52 pm

1 stop5h 34m

Washington, D.C. Reagan-National

Tue 7/14

1:42 pm-7:51 pm

1 stop6h 09m

$409
Quickest round-trip

Key WestWashington, D.C.

EYW - DCA

EYWDCA

Key West

Wed 9/2

12:06 pm-3:08 pm

Nonstop3h 02m

Washington, D.C. Reagan-National

Mon 9/7

8:20 am-11:36 am

Nonstop3h 16m

$428

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 May is, on average, the cheapest month to fly to Washington, D.C. Reagan-National Airport from Key West, with most prices found around $249. If you aren’t able to travel to Washington, D.C. Reagan-National Airport during the month of May, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $254.

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 $313. Flights from Key West to Washington, D.C. Reagan-National Airport on a Sunday will generally be more expensive and average around $733. 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 at noon. Our users have found flights to Washington, D.C. Reagan-National Airport at noon for as low as $364. 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 $394.

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 Airport flights?

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

You could potentially save up to 15% on your flight if you consider stops on a Key West to Washington, D.C. Reagan-National Airport flight.

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

As of June 2026, prices for Key West to Washington, D.C. Reagan-National Airport flights are approximately 74% 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

$233

Fastest flight time

3h 00m

Direct flights

Every day
The best one-way flight to Washington, D.C. Reagan-National Airport from Key West in the past 72 hours is $233. 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 $386.
The fastest flight from Key West to Washington, D.C. Reagan-National Airport takes 3h 00m
Direct flights go from Key West to Washington, D.C. Reagan-National Airport every day.
Search flight deals

Frequently asked questions about flying from Key West to Washington, D.C. Reagan-National Airport

  • 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 3h 00m.

  • 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 $254Free CancellationRating
7.1
11,779 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 6 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 $254 round-trip, up to an average price of $388. Our users have rated American Airlines at 7.1/10.

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

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

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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