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Cheap flights from Key West to Washington, D.C. from $89

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 1/16. 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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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
6:05 pm - 8:53 pm
EYW
-
IAD
2h 48mnonstop
United Airlines Logo
1:00 pm - 4:22 pm
IAD
-
EYW
3h 22mnonstop
$229United Airlines
Fri, Jan 30 - Tue, Feb 3
United Airlines Logo
2:25 pm - 9:13 pm
EYW
-
IAD
6h 48m1 stop
United Airlines Logo
1:00 pm - 4:22 pm
IAD
-
EYW
3h 22mnonstop
$239United Airlines
Fri, Jan 30 - Mon, Feb 2
United Airlines Logo
6:05 pm - 8:53 pm
EYW
-
IAD
2h 48mnonstop
United Airlines Logo
1:00 pm - 4:22 pm
IAD
-
EYW
3h 22mnonstop
$241United Airlines
Sat, Jan 17 - Tue, Jan 20
United Airlines Logo
2:25 pm - 9:13 pm
EYW
-
IAD
6h 48m1 stop
United Airlines Logo
6:00 am - 1:03 pm
IAD
-
EYW
7h 03m1 stop
$249United Airlines
Fri, Jan 30 - Mon, Feb 2
United Airlines Logo
6:05 pm - 8:53 pm
EYW
-
IAD
2h 48mnonstop
United Airlines Logo
6:00 am - 1:03 pm
IAD
-
EYW
7h 03m1 stop
$251United Airlines
Sat, Jan 17 - Wed, Jan 21
United Airlines Logo
2:05 pm - 9:22 pm
EYW
-
IAD
7h 17m1 stop
United Airlines Logo
6:00 am - 1:03 pm
IAD
-
EYW
7h 03m1 stop
$264United Airlines
Sat, Jan 17 - Tue, Jan 20
Delta Logo
2:40 pm - 8:46 pm
EYW
-
IAD
6h 06m1 stop
Delta Logo
6:00 am - 10:52 am
IAD
-
EYW
4h 52m1 stop
$274Delta
Fri, May 1 - Sun, May 3
Multiple Airlines Logo
12:20 pm - 3:01 pm
EYW
-
IAD
26h 41m2 stops
Multiple Airlines Logo
3:21 pm - 9:09 am
IAD
-
EYW
17h 48m1 stop
$294Multiple Airlines
Sun, Jan 4 - Thu, Jan 8
Delta Logo
5:56 pm - 12:21 am
EYW
-
IAD
6h 25m1 stop
Delta Logo
12:47 pm - 7:41 pm
IAD
-
EYW
6h 54m1 stop
$331Delta
Wed, Mar 4 - Sun, Mar 8
United Airlines Logo
6:05 pm - 8:53 pm
EYW
-
IAD
2h 48mnonstop
United Airlines Logo
1:00 pm - 4:22 pm
IAD
-
EYW
3h 22mnonstop
$334United Airlines
Thu, Jan 8 - Sun, Jan 11

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 30
EYW6:05 pmKey West
2h 48m
IAD8:53 pmWashington, D.C. Dulles Intl
Feb 3
IAD1:00 pmWashington, D.C. Dulles Intl
3h 22m
EYW4:22 pmKey West
$229
Find similar
United Airlines
Jan 30
EYW2:25 pmKey West
6h 48m
1 stop
IAD9:13 pmWashington, D.C. Dulles Intl
Feb 3
IAD1:00 pmWashington, D.C. Dulles Intl
3h 22m
EYW4:22 pmKey West
$239
Find similar
United Airlines
Jan 17
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
$241
Find similar

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 30
EYW6:06 pmKey West
6h 18m
1 stop
IAD12:24 amWashington, D.C. Dulles Intl
Feb 3
IAD12:40 pmWashington, D.C. Dulles Intl
7h 00m
1 stop
EYW7:40 pmKey West
$249
Find similar
Delta
May 1
EYW2:40 pmKey West
6h 06m
1 stop
IAD8:46 pmWashington, D.C. Dulles Intl
May 3
IAD6:00 amWashington, D.C. Dulles Intl
4h 52m
1 stop
EYW10:52 amKey West
$274
Find similar
Delta
Jan 7
EYW6:06 pmKey West
5h 31m
1 stop
IAD11:37 pmWashington, D.C. Dulles Intl
Jan 10
IAD12:33 pmWashington, D.C. Dulles Intl
7h 07m
1 stop
EYW7:40 pmKey West
$299
Find similar

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 December 21, 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

Fri 1/30

6:05 pm-8:53 pm

Nonstop2h 48m

Washington, D.C. Dulles Intl

Tue 2/3

1:00 pm-4:22 pm

Nonstop3h 22m

$229

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Fri 1/30

2:25 pm-9:13 pm

1 stop6h 48m

Washington, D.C. Dulles Intl

Mon 2/2

1:00 pm-4:22 pm

Nonstop3h 22m

$239

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Sat 1/17

6:05 pm-8:53 pm

Nonstop2h 48m

Washington, D.C. Dulles Intl

Tue 1/20

1:00 pm-4:22 pm

Nonstop3h 22m

$241

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Fri 1/30

2:25 pm-9:13 pm

1 stop6h 48m

Washington, D.C. Dulles Intl

Mon 2/2

6:00 am-1:03 pm

1 stop7h 03m

$249

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Sat 1/17

6:05 pm-8:53 pm

Nonstop2h 48m

Washington, D.C. Dulles Intl

Wed 1/21

6:00 am-1:03 pm

1 stop7h 03m

$251

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Sat 1/17

2:05 pm-9:22 pm

1 stop7h 17m

Washington, D.C. Dulles Intl

Tue 1/20

6:00 am-1:03 pm

1 stop7h 03m

$264

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Fri 5/1

2:40 pm-8:46 pm

1 stop6h 06m

Washington, D.C. Dulles Intl

Sun 5/3

6:00 am-10:52 am

1 stop4h 52m

$274

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Sun 1/4

12:20 pm-3:01 pm

2 stops26h 41m

Washington, D.C. Dulles Intl

Thu 1/8

3:21 pm-9:09 am

1 stop17h 48m

$294

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Wed 3/4

5:56 pm-12:21 am

1 stop6h 25m

Washington, D.C. Dulles Intl

Sun 3/8

12:47 pm-7:41 pm

1 stop6h 54m

$331

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Thu 1/8

6:05 pm-8:53 pm

Nonstop2h 48m

Washington, D.C. Dulles Intl

Sun 1/11

1:00 pm-4:22 pm

Nonstop3h 22m

$334

Flights are sorted by cheapest round-trip flights 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. 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 $357. 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 at noon is the least expensive time of day to depart. momondo users have found prices as low as $565 when looking at flights departing at noon. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $584 on average. Flights to Washington, D.C. Dulles Intl Airport from Key West in the morning 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?

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

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

Best Price Found

$233

Fastest flight time

2h 48m

Direct flights

Every day
The best one-way flight to Washington, D.C. Dulles Intl Airport from Key West in the past 72 hours is $233. The best round-trip flight deal from Key West to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is $279.
The fastest flight from Key West to Washington, D.C. Dulles Intl Airport takes 2h 48m
Direct flights go from Key West to Washington, D.C. Dulles Intl Airport every day.
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 48m 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
8,014 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
Towson
Harpers Ferry
Rockville
Gaithersburg
Reston
Manassas
Sterling
Fairfax

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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