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Dulles Intl

$95+ Cheap flights from Key West (EYW) to Dulles Intl (IAD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/26. Fares are subject to change and may not be available on all flights or dates of travel.
EYW — IAD
May 18 — May 251
Mon 5/18
Mon 5/25
1 adult, Economy
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Cheap flight deals from Key West to Dulles Intl

Cheapest flights from Key West to Dulles Intl
Explore the most affordable flight options available from Key West to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 18, 2026.

This Kiwi.com deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/1111:04 am
EYW
-
IAD
1 stop24h 43m
Multiple Airlines
Tue 6/1611:24 am
IAD
-
EYW
2 stops23h 42m
Multiple Airlines
Deal found 4/16$230
This Kiwi.com deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/179:58 am
EYW
-
IAD
1 stop23h 01m
Multiple Airlines
Sun 5/247:27 pm
IAD
-
EYW
1 stop16h 00m
Multiple Airlines
Deal found 4/17$238
This Kiwi.com deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/309:58 am
EYW
-
IAD
1 stop27h 35m
Allegiant Air
Mon 5/48:51 pm
IAD
-
EYW
2 stops36h 58m
Allegiant Air
Deal found 4/15$252
This Kiwi.com deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/1111:04 am
EYW
-
IAD
1 stop24h 43m
Multiple Airlines
Mon 6/158:25 am
IAD
-
EYW
2 stops10h 02m
Multiple Airlines
Deal found 4/16$281
This Kiwi.com deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/111:11 pm
EYW
-
IAD
2 stops21h 01m
Multiple Airlines
Mon 5/183:59 pm
IAD
-
EYW
1 stop20h 35m
Multiple Airlines
Deal found 4/13$303
This Delta deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/86:00 pm
EYW
-
IAD
1 stop6h 05m
Delta
Sun 10/116:00 am
IAD
-
EYW
1 stop4h 58m
Delta
Deal found 4/13$309
This Kiwi.com deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/191:14 pm
EYW
-
IAD
2 stops9h 55m
Multiple Airlines
Wed 5/205:07 pm
IAD
-
EYW
1 stop18h 18m
Multiple Airlines
Deal found 4/15$310
This American Airlines deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/72:01 pm
EYW
-
IAD
1 stop5h 24m
American Airlines
Sun 5/106:25 am
IAD
-
EYW
1 stop4h 51m
American Airlines
Deal found 4/13$311
This Delta deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/266:24 pm
EYW
-
IAD
1 stop6h 20m
Delta
Sun 7/126:00 am
IAD
-
EYW
1 stop5h 00m
Delta
Deal found 4/17$334
This United Airlines deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/152:49 pm
EYW
-
IAD
1 stop8h 36m
United Airlines
Wed 5/206:00 am
IAD
-
EYW
1 stop7h 45m
United Airlines
Deal found 4/16$344

Find flight deals from Key West to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Key West (EYW) to Dulles Intl (IAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 18, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$230
(Kiwi.com)

One-way from

$95
(Kiwi.com)

Popular in

January

Cheapest in

September

Average price

$722

Good one-way deal

$368 or less
Provider with most accurate pricing for Key West-Washington, D.C. Dulles Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Key West-Washington, D.C. Dulles Intl flights.
Search Deals
From Key West to Washington, D.C. Dulles Intl
Search Deals
One-way flight from Key West to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 34% potential increase in price ($243 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 26% potential price decrease ($100 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals
Price to beat on a one-way flight from Key West to Washington, D.C. Dulles Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Key West to Dulles Intl 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, Cheapflights users made 2,558,603 searches. Data last updated April 18, 2026.
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

Cheapest round-trip

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Thu 5/7

1:57 pm-8:59 am

2 stops19h 02m

Washington, D.C. Dulles Intl

Sun 5/10

2:01 pm-10:11 am

1 stop20h 10m

$220

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Fri 6/26

6:24 pm-12:44 am

1 stop6h 20m

Washington, D.C. Dulles Intl

Sun 7/12

6:00 am-11:00 am

1 stop5h 00m

$309

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Fri 6/19

6:24 pm-12:44 am

1 stop6h 20m

Washington, D.C. Dulles Intl

Tue 6/23

10:16 am-5:29 pm

1 stop7h 13m

$309

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Thu 10/8

6:00 pm-12:05 am

1 stop6h 05m

Washington, D.C. Dulles Intl

Sun 10/11

6:00 am-10:58 am

1 stop4h 58m

$309

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Thu 6/11

6:24 pm-12:44 am

1 stop6h 20m

Washington, D.C. Dulles Intl

Tue 6/16

12:37 pm-7:53 pm

1 stop7h 16m

$309
Quickest round-trip

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Thu 5/7

2:01 pm-7:25 pm

1 stop5h 24m

Washington, D.C. Dulles Intl

Sun 5/10

6:25 am-11:16 am

1 stop4h 51m

$311

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Fri 5/1

2:01 pm-7:25 pm

1 stop5h 24m

Washington, D.C. Dulles Intl

Sun 5/3

9:19 am-3:40 pm

1 stop6h 21m

$359

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Mon 5/11

6:19 pm-12:51 am

1 stop6h 32m

Washington, D.C. Dulles Intl

Mon 5/18

6:08 am-10:53 am

1 stop4h 45m

$364

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Thu 4/30

3:58 pm-11:59 pm

2 stops8h 01m

Washington, D.C. Dulles Intl

Mon 5/4

3:26 pm-10:58 pm

2 stops7h 32m

$369
Cheapest one-way

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Mon 8/31

12:07 pm-12:53 pm

1 stop24h 46m

$103

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/13

Showing 1-10 of 19 resultsSorted by cheapest first
1
2
  • Most accurate provider: When it comes to deals on Key West-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Key West-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Key West-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Key West-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Key West-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Key West to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Key West with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Key West to Washington, D.C. Dulles Intl Airport

What is the cheapest time of day to fly from EYW to IAD?

Find hourly flight availability from Key West to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 18, 2026.

When flying from Key West to Washington, D.C. Dulles Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Related info for your journey

Find useful and relevant information for your journey from Key West to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Key West to Washington, D.C. Dulles Intl?

    Most people fly from Key West (EYW) if they book a flight from Key West to Washington, D.C. Dulles Intl. On average, Key West has 0 outbound flights to Washington, D.C. Dulles Intl per day from 0 airlines. Key West is conveniently located just 2.6 mi from Key West’s city center.

  • How long is the flight from Key West to Washington, D.C. Dulles Intl Airport?

    For as low as $309, Allegiant Air can have you in Washington, D.C. Dulles Intl Airport from Key West in 6h 20m. Airlines will cover a distance of 1025 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest flights from Key West to Washington, D.C. Dulles Intl Airport?

    Looking at all options, your cheapest flight can be booked for $218. While the most popular route (Key West - Washington, D.C. Dulles Intl) can be booked for $230 on average, our data indicates $397 when flying from Key West to Washington, D.C. Dulles Intl Airport.

  • Can I find deals for flights from Key West to Dulles Intl that include hotel bookings?

    Yes. In addition to deals on Key West to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Key West to Dulles Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Key West to Dulles Intl.

  • Can I find deals for business class flights from Key West to Dulles Intl?

    Yes. Cheapflights offers flight deals from Key West to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Alexandria
Woodbridge
Tysons
Owings Mills
Springfield
Arlington
Silver Spring
Herndon
Hyattsville
Hanover
Laurel
Rockville
Largo
Upper Marlboro
Waldorf
Bowie
Clinton
Towson
Hunt Valley
Cordova

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