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Dulles Intl

$127+ 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 12/7. Fares are subject to change and may not be available on all flights or dates of travel.
EYW — IAD
Dec 5 — Dec 121
Fri 12/5
Fri 12/12
1 adult, Economy
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Cheap 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 November 5, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$198
(Kiwi.com)

One-way from

$127
(Kiwi.com)

Popular in

March

Cheapest in

September

Average price

$441
Provider with most accurate pricing for Key West-Washington, D.C. Dulles Intl flight deals.
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Provider most trusted by Cheapflights users for Key West-Washington, D.C. Dulles Intl flights.
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From Key West to Washington, D.C. Dulles Intl
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One-way flight from Key West to Washington, D.C. Dulles Intl
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Highest demand for flights based on searches. 26% potential increase in price ($155 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($28 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find 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 November 5, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/5. 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.
Thu 11/205:40 pmEYW - IAD
1 stop20h 30mAllegiant Air
Sun 11/238:23 pmIAD - EYW
1 stop18h 00mAllegiant Air
Deal found 11/5$198
This Kiwi.com deal was found by Cheapflights users on 11/5. 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.
Thu 11/205:40 pmEYW - IAD
1 stop20h 30mMultiple Airlines
Mon 11/242:11 pmIAD - EYW
1 stop20h 08mMultiple Airlines
Deal found 11/5$202
This Kiwi.com deal was found by Cheapflights users on 11/5. 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.
Thu 11/208:55 amEYW - IAD
2 stops8h 51mMultiple Airlines
Sun 11/238:23 pmIAD - EYW
1 stop18h 00mMultiple Airlines
Deal found 11/5$232
This Kiwi.com deal was found by Cheapflights users on 11/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/310:47 amEYW - IAD
1 stop21h 39mMultiple Airlines
Wed 12/109:00 amIAD - EYW
2 stops23h 15mMultiple Airlines
Deal found 11/3$236
This United Airlines deal was found by Cheapflights users on 11/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/32:47 pmEYW - IAD
1 stop6h 38mUnited Airlines
Wed 12/106:00 amIAD - EYW
1 stop7h 51mUnited Airlines
Deal found 11/3$262
This Delta deal was found by Cheapflights users on 11/3. 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.
Wed 11/266:18 pmEYW - IAD
1 stop5h 58mDelta
Wed 12/312:30 pmIAD - EYW
1 stop7h 36mDelta
Deal found 11/3$275
This Kiwi.com deal was found by Cheapflights users on 11/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/18:55 amEYW - IAD
2 stops29h 34mMultiple Airlines
Sat 12/69:20 pmIAD - EYW
1 stop10h 55mMultiple Airlines
Deal found 11/3$283
This Delta deal was found by Cheapflights users on 11/4. 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 12/166:10 pmEYW - IAD
1 stop6h 02mDelta
Wed 4/296:00 amIAD - EYW
1 stop4h 58mDelta
Deal found 11/4$304
This Kiwi.com deal was found by Cheapflights users on 11/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/267:47 amEYW - IAD
1 stop8h 44mMultiple Airlines
Wed 12/39:00 amIAD - EYW
2 stops26h 20mMultiple Airlines
Deal found 11/3$311
This Kiwi.com deal was found by Cheapflights users on 11/4. 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 11/68:55 amEYW - IAD
2 stops31h 03mMultiple Airlines
Sat 11/158:36 pmIAD - EYW
1 stop11h 39mMultiple Airlines
Deal found 11/4$313

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 November 5, 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

Key West

Fly to

Dulles Intl

Route

Depart

Return

Price

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

Wed 12/3

2:47 pm-9:25 pm

1 stop6h 38m

Washington, D.C. Dulles Intl

Wed 12/10

6:00 am-1:51 pm

1 stop7h 51m

$262

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

Wed 11/26

6:18 pm-12:16 am

1 stop5h 58m

Washington, D.C. Dulles Intl

Wed 12/3

12:30 pm-8:06 pm

1 stop7h 36m

$275

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Mon 12/1

8:55 am-2:29 pm

2 stops29h 34m

Washington, D.C. Dulles Intl

Sat 12/6

9:20 pm-8:15 am

1 stop10h 55m

$283

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Fri 3/6

6:07 pm-12:24 am

1 stop6h 17m

Washington, D.C. Dulles Intl

Tue 3/10

6:00 am-11:03 am

1 stop5h 03m

$304

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Sun 2/1

10:06 am-2:42 pm

1 stop28h 36m

$128

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/4

Showing 1-10 of 18 results
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 November.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Key West-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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.

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dulles Intl. Reviews last updated November 5, 2025.
Read reviews from past customers who have flown Delta from Key West to Washington, D.C. Dulles Intl Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,004 reviews

Crew

8.5

Comfort

7.9

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

7.9

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
Delta
7.9
Good
8,004 reviews
Delta
7.9
Good
8,004 reviews

Crew

8.5

Comfort

7.9

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

7.9

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.

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 1 airline. 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 $249, Delta can have you in Washington, D.C. Dulles Intl Airport from Key West in 5h 29m. 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 is the cheapest airline to fly from Key West to Washington, D.C. Dulles Intl Airport round-trip?

    According to our current data, Delta ($223), offers the cheapest pricing 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
Tysons
Woodbridge
Arlington
Owings Mills
Springfield
Hanover
Silver Spring
Fairfax
Fredericksburg
Falls Church
Linthicum Heights
Manassas
Laurel
Towson
National Harbor
Waldorf
Bowie
Largo
McLean

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Top airline flying from Key West to Dulles Intl

Discover the top airline that operate flights from Key West to Dulles Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 5, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$223Average$268FlexibilityNo cancel feeOn-timeN/A

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