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Cheap flights from Key West to Washington, D.C. from $90

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 1/30. 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 Key West to Washington, D.C.

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
1:10 pm - 7:22 am
EYW
-
BWI
18h 12m1 stop
Multiple Airlines Logo
10:00 pm - 8:15 am
BWI
-
EYW
10h 15m1 stop
$231Multiple Airlines
Mon, Dec 29 - Sat, Jan 3
Multiple Airlines Logo
12:20 pm - 9:35 am
EYW
-
BWI
21h 15m1 stop
Multiple Airlines Logo
10:00 pm - 8:15 am
BWI
-
EYW
10h 15m1 stop
$236Multiple Airlines
Tue, Dec 30 - Sat, Jan 3
Delta Logo
2:35 pm - 8:19 pm
EYW
-
DCA
5h 44m1 stop
Delta Logo
6:00 am - 10:58 am
DCA
-
EYW
4h 58m1 stop
$249Delta
Fri, May 1 - Sun, May 3
Delta Logo
6:07 pm - 12:24 am
EYW
-
IAD
6h 17m1 stop
Delta Logo
12:52 pm - 7:41 pm
IAD
-
EYW
6h 49m1 stop
$249Delta
Wed, Mar 4 - Sun, Mar 8
Spirit Airlines Logo
12:20 pm - 9:35 am
EYW
-
BWI
21h 15m1 stop
Spirit Airlines Logo
6:18 pm - 11:20 am
BWI
-
EYW
17h 02m1 stop
$264Spirit Airlines
Tue, Dec 30 - Mon, Jan 5
American Airlines Logo
5:14 pm - 7:59 pm
EYW
-
DCA
2h 45mnonstop
American Airlines Logo
7:31 am - 10:43 am
DCA
-
EYW
3h 12mnonstop
$279American Airlines
Mon, Dec 29 - Fri, Jan 2
United Airlines Logo
1:25 pm - 4:14 pm
EYW
-
IAD
2h 49mnonstop
United Airlines Logo
8:15 am - 11:41 am
IAD
-
EYW
3h 26mnonstop
$279United Airlines
Mon, Dec 29 - Fri, Jan 2
Spirit Airlines Logo
2:30 pm - 8:04 pm
EYW
-
BWI
5h 34m1 stop
Spirit Airlines Logo
6:30 am - 1:30 pm
BWI
-
EYW
7h 00m1 stop
$280Spirit Airlines
Wed, Dec 31 - Fri, Jan 2
American Airlines Logo
2:44 pm - 10:00 pm
EYW
-
DCA
7h 16m1 stop
American Airlines Logo
7:30 am - 10:38 am
DCA
-
EYW
3h 08mnonstop
$286American Airlines
Tue, Jan 20 - Tue, Jan 27
United Airlines Logo
3:09 pm - 8:54 pm
EYW
-
IAD
5h 45m1 stop
United Airlines Logo
1:06 pm - 4:29 pm
IAD
-
EYW
3h 23mnonstop
$289United Airlines
Mon, Dec 29 - Fri, Jan 2

Delta flights from Key West to Washington, D.C.

Our best Delta deals on Key West to Washington, D.C. flight tickets
Delta
Mar 4
EYW6:07 pmKey West
6h 17m
1 stop
IAD12:24 amWashington, D.C. Dulles Intl
Mar 8
IAD12:52 pmWashington, D.C. Dulles Intl
6h 49m
1 stop
EYW7:41 pmKey West
$249
Find similar
Delta
May 1
EYW2:35 pmKey West
6h 41m
1 stop
IAD9:16 pmWashington, D.C. Dulles Intl
May 3
IAD6:00 amWashington, D.C. Dulles Intl
4h 58m
1 stop
EYW10:58 amKey West
$274
Find similar
Delta
May 1
EYW2:35 pmKey West
7h 27m
1 stop
BWI10:02 pmBaltimore/Washington
May 3
BWI12:15 pmBaltimore/Washington
7h 29m
1 stop
EYW7:44 pmKey West
$299
Find similar

United Airlines flights from Key West to Washington, D.C.

Our best United Airlines deals on Key West to Washington, D.C. flight tickets
United Airlines
Dec 29
EYW1:25 pmKey West
2h 49m
IAD4:14 pmWashington, D.C. Dulles Intl
Jan 2
IAD8:15 amWashington, D.C. Dulles Intl
3h 26m
EYW11:41 amKey West
$279
Find similar
United Airlines
Dec 29
EYW3:09 pmKey West
5h 45m
1 stop
IAD8:54 pmWashington, D.C. Dulles Intl
Jan 2
IAD1:06 pmWashington, D.C. Dulles Intl
3h 23m
EYW4:29 pmKey West
$289
Find similar
United Airlines
Dec 29
EYW3:09 pmKey West
5h 45m
1 stop
IAD8:54 pmWashington, D.C. Dulles Intl
Jan 2
IAD8:20 amWashington, D.C. Dulles Intl
8h 53m
1 stop
EYW5:13 pmKey West
$299
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Key West to Washington, D.C. 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 December 16, 2025.
Use the filters below to find and compare flights from Key West to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Key WestBaltimore

EYW - BWI

EYWBWI

Key West

Mon 12/29

1:10 pm-7:22 am

1 stop18h 12m

Baltimore/Washington

Sat 1/3

10:00 pm-8:15 am

1 stop10h 15m

$231

Key WestBaltimore

EYW - BWI

EYWBWI

Key West

Tue 12/30

12:20 pm-9:35 am

1 stop21h 15m

Baltimore/Washington

Sat 1/3

10:00 pm-8:15 am

1 stop10h 15m

$236

Key WestWashington, D.C.

EYW - DCA

EYWDCA

Key West

Fri 5/1

2:35 pm-8:19 pm

1 stop5h 44m

Washington, D.C. Reagan-National

Sun 5/3

6:00 am-10:58 am

1 stop4h 58m

$249

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Wed 3/4

6:07 pm-12:24 am

1 stop6h 17m

Washington, D.C. Dulles Intl

Sun 3/8

12:52 pm-7:41 pm

1 stop6h 49m

$249

Key WestBaltimore

EYW - BWI

EYWBWI

Key West

Tue 12/30

12:20 pm-9:35 am

1 stop21h 15m

Baltimore/Washington

Mon 1/5

6:18 pm-11:20 am

1 stop17h 02m

$264

Key WestWashington, D.C.

EYW - DCA

EYWDCA

Key West

Mon 12/29

5:14 pm-7:59 pm

Nonstop2h 45m

Washington, D.C. Reagan-National

Fri 1/2

7:31 am-10:43 am

Nonstop3h 12m

$279

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Mon 12/29

1:25 pm-4:14 pm

Nonstop2h 49m

Washington, D.C. Dulles Intl

Fri 1/2

8:15 am-11:41 am

Nonstop3h 26m

$279

Key WestBaltimore

EYW - BWI

EYWBWI

Key West

Wed 12/31

2:30 pm-8:04 pm

1 stop5h 34m

Baltimore/Washington

Fri 1/2

6:30 am-1:30 pm

1 stop7h 00m

$280

Key WestWashington, D.C.

EYW - DCA

EYWDCA

Key West

Tue 1/20

2:44 pm-10:00 pm

1 stop7h 16m

Washington, D.C. Reagan-National

Tue 1/27

7:30 am-10:38 am

Nonstop3h 08m

$286

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Mon 12/29

3:09 pm-8:54 pm

1 stop5h 45m

Washington, D.C. Dulles Intl

Fri 1/2

1:06 pm-4:29 pm

Nonstop3h 23m

$289

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.

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.?

The month of September is, on average, the cheapest month to fly to Washington, D.C. from Key West, with most prices found around $254. If you’re not able to fly to Washington, D.C. in September, then August is your next best option. Flight prices from Key West to Washington, D.C. during August average around $331.

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

On average, the least expensive day to fly to Washington, D.C. from Key West is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $357. 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 Key West to Washington, D.C. for around $659.

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

In the afternoon is the cheapest time of day to fly from Key West to Washington, D.C. when you can find flight prices for as low as $419. Flying to Washington, D.C. in the afternoon is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the morning because they tend to be around $465. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

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

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

There are 4 cabin classes available to choose from on Key West to Washington, D.C. 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. flights?

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

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

When to book flights from Key West to Washington, D.C.

Are you open to changing your travel dates? Check out the ideal times to fly from Key West to Washington, D.C. 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. (EYW to WAS) flight deals and tips

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

Best Price Found

$223

Fastest flight time

2h 45m

Direct flights

Every day

Airports in Washington, D.C.

2 airports
The best one-way flight to Washington, D.C. from Key West in the past 72 hours is $223. The best round-trip flight deal from Key West to Washington, D.C. found on momondo in the last 72 hours is $339.
The fastest flight from Key West to Washington, D.C. takes 2h 45m
Direct flights go from Key West to Washington, D.C. every day.
There are 2 airports in Washington, D.C.. From Key West there are direct flights to Washington, D.C. Reagan-National (DCA), Washington, D.C. Dulles Intl (IAD).
Search flight deals

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

    There are 1029.2 mi between Key West and Washington, D.C.. Typically, this will take 2h 45m by plane in normal conditions.

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

    Prices for flights from Key West Airport to Washington, D.C. were last updated today.

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

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

    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 Key West Airport to Washington, D.C..

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

    The travel and health documents you'll need for your trip to Washington, D.C. may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington, D.C.. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Key West to Washington, D.C.?

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

Best airlines flying from Key West to Washington, D.C.

Compare and see reviews for airlines that fly from Key West to Washington, D.C. with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $223Free CancellationRating
7.9
8,008 reviews
Search Delta flights
American AirlinesPriceFrom $224Free CancellationRating
7.2
11,049 reviews
Search American Airlines flights

  • American Airlines Flights From Key West to Washington, D.C.

    American Airlines is one of the most popular airlines flying from Key West to Washington, D.C., operating 6 flights/week on average for this route. A good American Airlines flight deal for Key West to Washington, D.C. starts from $224 round-trip, up to an average price of $356. 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
National Harbor
Gettysburg
Arlington
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Towson
Rockville
Gaithersburg
Reston
Manassas
Fairfax
Glen Burnie
Linthicum Heights
Bethesda

Why use momondo?

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

It is quick and easy to find Key West to Washington, D.C. flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Washington, D.C. that suits you.

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

Yes. momondo allows you to filter the results for Key West to Washington, D.C. flights to just show those with flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to Washington, D.C. from Key West. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are simply researching potential flights to Washington, D.C., momondo offers a useful price alert feature which will track prices for flights to Washington, D.C. from Key West and alert you when they change.

An easier way to manage your Washington, D.C. trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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Find better results for your trip to the United States

Fly into one of these airports located in Washington, D.C.

Airports listed have a maximum distance of 22.4 mi from Washington, D.C.
Washington, D.C. Reagan-National Airport
Washington, D.C. Dulles Intl Airport