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Dulles Intl

$94+ 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 5/14. Fares are subject to change and may not be available on all flights or dates of travel.
EYW — IAD
May 1 — May 81
Fri 5/1
Fri 5/8
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 1, 2026.

This Kiwi.com deal was found by Cheapflights users on 3/28. 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 4/239:58 am
EYW
-
IAD
1 stop27h 35m
Allegiant Air
Sun 4/262:01 pm
IAD
-
EYW
1 stop20h 10m
Allegiant Air
Deal found 3/28$173
This Kiwi.com deal was found by Cheapflights users on 3/28. 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 4/211:01 pm
EYW
-
IAD
2 stops11h 35m
Multiple Airlines
Sun 4/262:01 pm
IAD
-
EYW
1 stop20h 10m
Multiple Airlines
Deal found 3/28$227
This Kiwi.com deal was found by Cheapflights users on 3/30. 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 7/167:56 pm
EYW
-
IAD
1 stop15h 51m
Multiple Airlines
Mon 7/208:25 am
IAD
-
EYW
2 stops10h 03m
Multiple Airlines
Deal found 3/30$272
This United Airlines deal was found by Cheapflights users on 3/31. 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 4/246:22 pm
EYW
-
IAD
Nonstop3h 03m
United Airlines
Sat 4/251:15 pm
IAD
-
EYW
Nonstop3h 27m
United Airlines
Deal found 3/31$289
This Delta deal was found by Cheapflights users on 3/31. 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 4/247:33 am
EYW
-
IAD
1 stop6h 31m
Delta
Sat 4/251:00 pm
IAD
-
EYW
1 stop6h 40m
Delta
Deal found 3/31$309
This American Airlines deal was found by Cheapflights users on 3/31. 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.
Fri 4/242:01 pm
EYW
-
IAD
1 stop5h 24m
American Airlines
Sat 4/253:26 pm
IAD
-
EYW
2 stops7h 32m
American Airlines
Deal found 3/31$314
This Delta deal was found by Cheapflights users on 3/31. 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 6/106:24 pm
EYW
-
IAD
1 stop6h 20m
Delta
Sat 6/133:02 pm
IAD
-
EYW
1 stop4h 51m
Delta
Deal found 3/31$334
This United Airlines deal was found by Cheapflights users on 3/29. 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.
Tue 4/146:22 pm
EYW
-
IAD
Nonstop3h 03m
United Airlines
Sat 4/181:15 pm
IAD
-
EYW
Nonstop3h 27m
United Airlines
Deal found 3/29$339
This Delta deal was found by Cheapflights users on 3/31. 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 6/262:24 pm
EYW
-
IAD
1 stop6h 40m
Delta
Sun 7/126:00 am
IAD
-
EYW
1 stop5h 00m
Delta
Deal found 3/31$359

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 1, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$173
(Kiwi.com)

One-way from

$94
(Kiwi.com)

Popular in

January

Cheapest in

September

Average price

$541

Good one-way deal

$371 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. 37% potential increase in price ($268 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 34% potential price decrease ($114 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 1, 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
Quickest round-trip

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Fri 4/24

6:22 pm-9:25 pm

Nonstop3h 03m

Washington, D.C. Dulles Intl

Sat 4/25

1:15 pm-4:42 pm

Nonstop3h 27m

$289

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Fri 5/1

11:56 am-7:25 pm

1 stop7h 29m

Washington, D.C. Dulles Intl

Sun 5/3

6:25 am-11:16 am

1 stop4h 51m

$309

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Wed 6/10

2:24 pm-9:04 pm

1 stop6h 40m

Washington, D.C. Dulles Intl

Sat 6/13

3:02 pm-7:53 pm

1 stop4h 51m

$334

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Tue 4/14

6:22 pm-9:25 pm

Nonstop3h 03m

Washington, D.C. Dulles Intl

Sat 4/18

8:23 am-5:39 pm

1 stop9h 16m

$349

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Fri 5/29

6:19 pm-12:51 am

1 stop6h 32m

Washington, D.C. Dulles Intl

Sun 5/31

6:08 am-10:53 am

1 stop4h 45m

$359

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

$359
Cheapest one-way

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Mon 6/8

9:01 am-2:16 pm

1 stop5h 15m

$97

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Sat 9/19

1:28 pm-7:39 pm

1 stop6h 11m

$234

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Sat 5/16

6:19 pm-12:51 am

1 stop6h 32m

$274

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Tue 4/7

5:23 pm-11:25 pm

1 stop6h 02m

$297

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/31

Showing 1-10 of 11 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 1, 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.

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 April 1, 2026.
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
8,368 reviews

Entertainment

7.8

Boarding

8.1

Comfort

7.9

Food

7.2

Overall

7.9

Crew

8.5

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
8,368 reviews
Delta
7.9
Good
8,368 reviews

Entertainment

7.8

Boarding

8.1

Comfort

7.9

Food

7.2

Overall

7.9

Crew

8.5

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 1 outbound flight 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 $289, United Airlines can have you in Washington, D.C. Dulles Intl Airport from Key West in 3h 03m. 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. Delta is priced at 49% lower than the current average price of a flight leaving 3 months from now.

  • What are the most reliable airlines from Key West to Washington, D.C. Dulles Intl Airport?

    The top 3 most reliable airlines when flying from Key West to Washington, D.C. Dulles Intl Airport are Mesa Airlines (93%), United Airlines (73%) and Republic Airways (72%).

  • 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 $272 on average, our data indicates $413 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
Arlington
Springfield
Silver Spring
Herndon
Hyattsville
Hanover
Laurel
Rockville
Upper Marlboro
Fredericksburg
Largo
Bowie
Clinton
Towson
Cordova
Manassas

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Key West to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
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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 April 1, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$223Average$268FlexibilityNo cancel feeOn-timeN/A

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