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Cheap flights from Key West to Washington, D.C. from $127

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 12/7. 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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Allegiant Air Logo
5:40 pm - 2:10 pmEYW-IAD
20h 30m1 stop
Allegiant Air Logo
8:23 pm - 2:23 pmIAD-EYW
18h 00m1 stop
$198Allegiant Air
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Thu, Nov 20 - Sun, Nov 23
Multiple Airlines Logo
5:40 pm - 2:10 pmEYW-IAD
20h 30m1 stop
Multiple Airlines Logo
2:11 pm - 10:19 amIAD-EYW
20h 08m1 stop
$202Multiple Airlines
Find Deal
Thu, Nov 20 - Mon, Nov 24
Multiple Airlines Logo
8:55 am - 5:46 pmEYW-IAD
8h 51m2 stops
Multiple Airlines Logo
8:23 pm - 2:23 pmIAD-EYW
18h 00m1 stop
$232Multiple Airlines
Find Deal
Thu, Nov 20 - Sun, Nov 23
Delta Logo
6:08 pm - 11:37 pmEYW-IAD
5h 29m1 stop
Delta Logo
6:00 am - 1:48 pmIAD-EYW
7h 48m1 stop
$249Delta
Find Deal
Tue, Jan 13 - Tue, Jan 20
Multiple Airlines Logo
10:59 am - 4:31 pmEYW-IAD
5h 32m1 stop
Multiple Airlines Logo
6:46 pm - 10:19 amIAD-EYW
15h 33m2 stops
$255Multiple Airlines
Find Deal
Thu, Nov 20 - Mon, Nov 24
United Airlines Logo
6:05 pm - 8:53 pmEYW-IAD
2h 48mnonstop
United Airlines Logo
6:00 am - 1:03 pmIAD-EYW
7h 03m1 stop
$260United Airlines
Find Deal
Tue, Jan 13 - Tue, Jan 20
United Airlines Logo
6:05 pm - 8:53 pmEYW-IAD
2h 48mnonstop
United Airlines Logo
1:00 pm - 4:22 pmIAD-EYW
3h 22mnonstop
$270United Airlines
Find Deal
Tue, Jan 13 - Tue, Jan 20
Delta Logo
6:07 pm - 12:24 amEYW-IAD
6h 17m1 stop
Delta Logo
1:00 pm - 7:44 pmIAD-EYW
6h 44m1 stop
$274Delta
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Wed, Mar 4 - Sun, Mar 8
American Airlines Logo
7:00 am - 1:34 pmEYW-IAD
6h 34m2 stops
American Airlines Logo
5:05 am - 11:14 amIAD-EYW
6h 09m1 stop
$404American Airlines
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Tue, Dec 16 - Wed, Apr 29
American Airlines Logo
4:10 pm - 11:59 pmEYW-IAD
7h 49m2 stops
American Airlines Logo
4:34 pm - 11:50 pmIAD-EYW
7h 16m2 stops
$409American Airlines
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Thu, Nov 20 - Sun, Nov 23

Delta flights from Key West to Washington, D.C. Dulles Intl Airport

Our best Delta deals on Key West to Washington, D.C. Dulles Intl Airport flight tickets
Delta
Jan 13
EYW6:08 pmKey West
5h 29m
1 stop
IAD11:37 pmWashington, D.C. Dulles Intl
Jan 20
IAD6:00 amWashington, D.C. Dulles Intl
7h 48m
1 stop
EYW1:48 pmKey West
$249
Find similar
Delta
Mar 4
EYW6:07 pmKey West
6h 17m
1 stop
IAD12:24 amWashington, D.C. Dulles Intl
Mar 8
IAD1:00 pmWashington, D.C. Dulles Intl
6h 44m
1 stop
EYW7:44 pmKey West
$274
Find similar
Delta
Mar 6
EYW6:07 pmKey West
6h 17m
1 stop
IAD12:24 amWashington, D.C. Dulles Intl
Mar 10
IAD1:00 pmWashington, D.C. Dulles Intl
6h 44m
1 stop
EYW7:44 pmKey West
$304
Find similar

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

Our best United Airlines deals on Key West to Washington, D.C. Dulles Intl Airport flight tickets
United Airlines
Jan 13
EYW6:05 pmKey West
2h 48m
IAD8:53 pmWashington, D.C. Dulles Intl
Jan 20
IAD6:00 amWashington, D.C. Dulles Intl
7h 03m
1 stop
EYW1:03 pmKey West
$260
Find similar
United Airlines
Jan 13
EYW6:05 pmKey West
2h 48m
IAD8:53 pmWashington, D.C. Dulles Intl
Jan 20
IAD1:00 pmWashington, D.C. Dulles Intl
3h 22m
EYW4:22 pmKey West
$270
Find similar
United Airlines
Dec 16
EYW2:47 pmKey West
20h 27m
2 stops
IAD11:14 amWashington, D.C. Dulles Intl
Apr 29
IAD6:00 amWashington, D.C. Dulles Intl
7h 02m
1 stop
EYW1:02 pmKey West
$418
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momondo Fare Finder

 
Customize your flight search to find flights from Key West to Washington, D.C. Dulles Intl 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 November 6, 2025.
Use the filters below to find and compare flights from Key West to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Thu 11/20

5:40 pm-2:10 pm

1 stop20h 30m

Washington, D.C. Dulles Intl

Sun 11/23

8:23 pm-2:23 pm

1 stop18h 00m

$198

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Thu 11/20

5:40 pm-2:10 pm

1 stop20h 30m

Washington, D.C. Dulles Intl

Mon 11/24

2:11 pm-10:19 am

1 stop20h 08m

$202

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Thu 11/20

8:55 am-5:46 pm

2 stops8h 51m

Washington, D.C. Dulles Intl

Sun 11/23

8:23 pm-2:23 pm

1 stop18h 00m

$232

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Tue 1/13

6:08 pm-11:37 pm

1 stop5h 29m

Washington, D.C. Dulles Intl

Tue 1/20

6:00 am-1:48 pm

1 stop7h 48m

$249

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Thu 11/20

10:59 am-4:31 pm

1 stop5h 32m

Washington, D.C. Dulles Intl

Mon 11/24

6:46 pm-10:19 am

2 stops15h 33m

$255

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Tue 1/13

6:05 pm-8:53 pm

Nonstop2h 48m

Washington, D.C. Dulles Intl

Tue 1/20

6:00 am-1:03 pm

1 stop7h 03m

$260

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Tue 1/13

6:05 pm-8:53 pm

Nonstop2h 48m

Washington, D.C. Dulles Intl

Tue 1/20

1:00 pm-4:22 pm

Nonstop3h 22m

$270

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

1:00 pm-7:44 pm

1 stop6h 44m

$274

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Tue 12/16

7:00 am-1:34 pm

2 stops6h 34m

Washington, D.C. Dulles Intl

Wed 4/29

5:05 am-11:14 am

1 stop6h 09m

$404

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Thu 11/20

4:10 pm-11:59 pm

2 stops7h 49m

Washington, D.C. Dulles Intl

Sun 11/23

4:34 pm-11:50 pm

2 stops7h 16m

$409

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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. Dulles Intl 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 day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Our data shows that Wednesday is the least expensive day to fly to Washington, D.C. Dulles Intl Airport. Tickets to fly out on this day can be as low as $392. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Key West to Washington, D.C. Dulles Intl Airport for around $613.

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

Flying to Washington, D.C. Dulles Intl Airport from Key West in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $347 when looking at flights departing in the afternoon. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $960 on average. Flights to Washington, D.C. Dulles Intl Airport from Key West at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

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

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

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

You could potentially save up to 18% on your flight if you consider stops on a Key West to Washington, D.C. Dulles Intl Airport flight.

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

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

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

Fastest flight time

2h 43m

Direct flights

Mon, Wed, Sat and Sun
The fastest flight from Key West to Washington, D.C. Dulles Intl Airport takes 2h 43m
Direct flights go from Key West to Washington, D.C. Dulles Intl Airport on Monday, Wednesday, Saturday and Sunday. There are no airlines offering direct flights.
Search flight deals

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

    The distance between Key West and Washington, D.C. Dulles Intl is about 1025.8 mi. 2h 43m is a normal flight duration for this route.

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

    Prices for flights from Key West Airport to Washington, D.C. Dulles Intl Airport are refreshed on a daily basis.

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Key West Airport to Washington, D.C. Dulles Intl Airport.

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

    The required travel and health documents for your Washington, D.C. Dulles Intl 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. Dulles Intl 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. Dulles Intl Airport?

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

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

Compare and see reviews for airlines that fly from Key West to Washington, D.C. Dulles Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $223Free CancellationRating
7.9
8,004 reviews
Search Delta flights

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
Winchester
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Harpers Ferry
Towson
Rockville
Reston
Manassas
Gaithersburg
Fairfax
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?

momondo does allow users to show only those flights to Washington, D.C. from Key West which offer a flexible booking policy as well as other useful filters and features.

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?

If you are not ready to book a flight from Key West to Washington, D.C. now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Washington, D.C. and let you know when they change.

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