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Dulles Intl

$133+ 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 8/2. Fares are subject to change and may not be available on all flights or dates of travel.
EYW — IAD
Aug 7 — Aug 141
Fri 8/7
Fri 8/14
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 July 8, 2026.

This Kiwi.com deal was found by Cheapflights users on 7/8. 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.
Sat 8/84:35 pm
EYW
-
IAD
2 stops24h 05m
Multiple Airlines
Mon 8/1712:28 pm
IAD
-
EYW
1 stop24h 06m
Multiple Airlines
Deal found 7/8$267
This Delta deal was found by Cheapflights users on 7/5. 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 8/77:40 am
EYW
-
IAD
1 stop6h 25m
Delta
Sun 8/1610:16 am
IAD
-
EYW
1 stop7h 04m
Delta
Deal found 7/5$309
This Kiwi.com deal was found by Cheapflights users on 7/5. 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 8/212:05 pm
EYW
-
IAD
1 stop22h 20m
Multiple Airlines
Sat 8/85:29 pm
IAD
-
EYW
2 stops16h 55m
Multiple Airlines
Deal found 7/5$310
This Kiwi.com deal was found by Cheapflights users on 7/6. 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.
Wed 10/2110:04 am
EYW
-
IAD
2 stops7h 32m
Multiple Airlines
Sat 10/248:00 pm
IAD
-
EYW
1 stop16h 38m
Multiple Airlines
Deal found 7/6$340
This Kiwi.com deal was found by Cheapflights users on 7/7. 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 8/312:07 pm
EYW
-
IAD
1 stop6h 26m
Multiple Airlines
Thu 8/138:33 pm
IAD
-
EYW
2 stops18h 04m
Multiple Airlines
Deal found 7/7$348
This Delta deal was found by Cheapflights users on 7/8. 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 7/237:50 am
EYW
-
IAD
1 stop6h 11m
Delta
Mon 7/276:00 am
IAD
-
EYW
1 stop5h 00m
Delta
Deal found 7/8$359
This Delta deal was found by Cheapflights users on 7/3. 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 10/82:00 pm
EYW
-
IAD
1 stop4h 43m
Delta
Sun 10/116:00 am
IAD
-
EYW
1 stop4h 48m
Delta
Deal found 7/3$364
This Delta deal was found by Cheapflights users on 7/3. 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.
Tue 7/146:18 pm
EYW
-
IAD
1 stop6h 23m
Delta
Sun 7/196:00 am
IAD
-
EYW
1 stop5h 00m
Delta
Deal found 7/3$410
This Delta deal was found by Cheapflights users on 7/3. 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 7/166:18 pm
EYW
-
IAD
1 stop6h 23m
Delta
Sun 7/198:27 am
IAD
-
EYW
1 stop4h 56m
Delta
Deal found 7/3$419
This Delta deal was found by Cheapflights users on 7/5. 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.
Mon 8/37:40 am
EYW
-
IAD
1 stop6h 25m
Delta
Thu 8/1312:30 pm
IAD
-
EYW
1 stop7h 27m
Delta
Deal found 7/5$449
This American Airlines deal was found by Cheapflights users on 7/6. 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.
Wed 10/217:19 pm
EYW
-
IAD
1 stop4h 39m
American Airlines
Sat 10/249:15 am
IAD
-
EYW
2 stops10h 18m
American Airlines
Deal found 7/6$455

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 July 8, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$267
(Kiwi.com)

One-way from

$133
(Kiwi.com)

Popular in

September

Cheapest in

February

Average price

$453
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. 28% potential increase in price ($177 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($32 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
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 July 8, 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

Wed 10/21

7:40 am-2:09 pm

1 stop6h 29m

Washington, D.C. Dulles Intl

Sat 10/24

3:05 pm-7:51 pm

1 stop4h 46m

$309

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Thu 7/23

7:50 am-2:01 pm

1 stop6h 11m

Washington, D.C. Dulles Intl

Mon 7/27

6:00 am-11:00 am

1 stop5h 00m

$359

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Mon 8/3

7:40 am-2:05 pm

1 stop6h 25m

Washington, D.C. Dulles Intl

Fri 8/14

12:30 pm-7:57 pm

1 stop7h 27m

$364
Quickest round-trip

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Thu 10/8

2:00 pm-6:43 pm

1 stop4h 43m

Washington, D.C. Dulles Intl

Sun 10/11

6:00 am-10:48 am

1 stop4h 48m

$364

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Thu 7/23

12:05 pm-11:20 am

2 stops23h 15m

Washington, D.C. Dulles Intl

Mon 7/27

12:28 pm-12:34 pm

1 stop24h 06m

$419

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Mon 8/3

7:40 am-2:05 pm

1 stop6h 25m

Washington, D.C. Dulles Intl

Thu 8/13

12:30 pm-7:57 pm

1 stop7h 27m

$449

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Wed 10/21

10:24 am-6:45 pm

2 stops8h 21m

Washington, D.C. Dulles Intl

Sat 10/24

9:15 am-7:33 pm

2 stops10h 18m

$507

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Sat 8/1

2:44 pm-2:26 pm

2 stops23h 42m

Washington, D.C. Dulles Intl

Thu 8/6

1:32 pm-11:27 am

1 stop21h 55m

$526

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Tue 11/3

6:11 pm-12:31 am

1 stop6h 20m

Washington, D.C. Dulles Intl

Thu 11/5

12:31 pm-7:51 pm

1 stop7h 20m

$547

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Wed 8/19

2:15 pm-10:59 pm

1 stop8h 44m

Washington, D.C. Dulles Intl

Sun 8/23

6:15 am-1:29 pm

1 stop7h 14m

$563

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/4

Showing 1-10 of 17 resultsSorted by cheapest first
1
2

Compare providers for flights from Key West to Dulles Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Key West to Dulles Intl in July.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • 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.

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, Delta can have you in Washington, D.C. Dulles Intl Airport from Key West in 6h 29m. Airlines will cover a distance of 1025 mi.

  • 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
Arlington
Tysons
Owings Mills
Springfield
Lanham
Reston
Herndon
Rockville
Hyattsville
Manassas
Falls Church
Fredericksburg
Hanover
Chantilly
Laurel
Sterling
Silver Spring
Clinton
Hunt Valley

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