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

For as low as $249, United Airlines can have you in Washington, D.C. Dulles Intl Airport from Key West in 8h 19m. Airlines will cover a distance of 1025 mi.

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.

What is the cheapest month to book a flight from Key West to Washington, D.C. Dulles Intl Airport?

Currently, August is the cheapest month in which you can book a flight from Key West to Washington, D.C. Dulles Intl Airport (average of $292). Flying from Key West to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest day to fly from Key West to Washington, D.C. Dulles Intl Airport?

Travelers seeking maximum savings on their Key West to Washington, D.C. Dulles Intl Airport flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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

Unlike at noon, when flights are generally more expensive, you can save up to 68% on flights from Key West to Washington, D.C. Dulles Intl Airport by exploring options for tickets in the afternoon.

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.

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.

$113+ Cheap Flights from Key West to Washington, D.C. Dulles Intl Airport

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Key West to Dulles Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Key West to Dulles Intl

Round-trip from	$217 (Kiwi.com)
One-way from	$113 (Kiwi.com)
Popular in	March
Cheapest in	September
Average price	$249

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. 25% potential increase in price ($137 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 7% potential price decrease ($29 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 2025

Search Deals

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 September 17, 2025.

Fri 10/318:55 amEYW - IAD

1 stop10h 56mMultiple Airlines

Sun 11/28:36 pmIAD - EYW

1 stop11h 39mMultiple Airlines

Deal found 9/17

$217

Thu 10/28:55 amEYW - IAD

1 stop9h 29mMultiple Airlines

Sun 10/57:14 pmIAD - EYW

1 stop13h 01mMultiple Airlines

Deal found 9/17

$219

Thu 10/28:55 amEYW - IAD

1 stop9h 29mMultiple Airlines

Mon 10/64:29 pmIAD - EYW

1 stop18h 36mMultiple Airlines

Deal found 9/17

$246

Thu 12/43:02 pmEYW - IAD

1 stop8h 19mUnited Airlines

Tue 12/96:00 amIAD - EYW

1 stop8h 06mUnited Airlines

Deal found 9/15

$249

Thu 12/48:55 amEYW - IAD

1 stop22h 40mMultiple Airlines

Tue 12/98:00 amIAD - EYW

2 stops26h 07mMultiple Airlines

Deal found 9/15

$253

Tue 9/309:47 amEYW - IAD

2 stops34h 08mMultiple Airlines

Sat 10/47:14 pmIAD - EYW

1 stop13h 01mMultiple Airlines

Deal found 9/15

$267

Fri 10/38:55 amEYW - IAD

1 stop9h 24mMultiple Airlines

Sun 10/51:55 pmIAD - EYW

2 stops19h 22mMultiple Airlines

Deal found 9/17

$281

Fri 12/59:57 amEYW - IAD

1 stop4h 54mMultiple Airlines

Wed 12/108:00 amIAD - EYW

2 stops24h 15mMultiple Airlines

Deal found 9/15

$301

Mon 9/2912:32 pmEYW - IAD

1 stop7h 37mMultiple Airlines

Thu 10/27:14 pmIAD - EYW

1 stop13h 01mMultiple Airlines

Deal found 9/15

$302

Best flights from Key West to Dulles Intl
Discover carefully curated flight deals from Key West to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 17, 2025.

Thu 10/28:55 amEYW - IAD

1 stop9h 29mMultiple Airlines

Sun 10/57:14 pmIAD - EYW

1 stop13h 01mMultiple Airlines

Deal found 9/17

$219

Thu 12/43:02 pmEYW - IAD

1 stop8h 19mUnited Airlines

Tue 12/96:00 amIAD - EYW

1 stop8h 06mUnited Airlines

Deal found 9/15

$249

Fri 3/66:00 pmEYW - IAD

1 stop6h 07mDelta

Tue 3/101:00 pmIAD - EYW

1 stop6h 44mDelta

Deal found 9/14

$324

Fri 10/38:55 amEYW - IAD

1 stop9h 24mMultiple Airlines

Sun 10/57:14 pmIAD - EYW

1 stop13h 01mMultiple Airlines

Deal found 9/17

$219

Fri 12/53:02 pmEYW - IAD

1 stop8h 19mUnited Airlines

Wed 12/106:00 amIAD - EYW

1 stop8h 06mUnited Airlines

Deal found 9/15

$249

Thu 12/48:55 amEYW - IAD

1 stop22h 40mMultiple Airlines

Tue 12/98:00 amIAD - EYW

2 stops26h 07mMultiple Airlines

Deal found 9/15

$253

Fri 12/59:57 amEYW - IAD

1 stop4h 54mMultiple Airlines

Wed 12/108:00 amIAD - EYW

2 stops24h 15mMultiple Airlines

Deal found 9/15

$301

Mon 9/2912:32 pmEYW - IAD

1 stop7h 37mMultiple Airlines

Thu 10/27:14 pmIAD - EYW

1 stop13h 01mMultiple Airlines

Deal found 9/15

$302

Fri 3/612:30 pmEYW - IAD

Nonstop2h 43mUnited Airlines

Tue 3/108:45 amIAD - EYW

Nonstop3h 20mUnited Airlines

Deal found 9/14

$369

Last-minute flights from Key West to Dulles Intl
Discover last-minute flight deals from Key West to Dulles Intl. Data last updated September 17, 2025 and is based on user searches.

Thu 9/1811:50 amEYW - IAD

1 stop4h 37mDelta

Mon 9/223:31 pmIAD - EYW

1 stop4h 36mDelta

Deal found 9/15

$424

Mon 9/2912:32 pmEYW - IAD

1 stop7h 37mMultiple Airlines

Thu 10/27:14 pmIAD - EYW

1 stop13h 01mMultiple Airlines

Deal found 9/15

$302

Tue 9/309:47 amEYW - IAD

2 stops34h 08mMultiple Airlines

Sat 10/47:14 pmIAD - EYW

1 stop13h 01mMultiple Airlines

Deal found 9/15

$267

Tue 9/3012:00 pmEYW - IAD

1 stop6h 51mAmerican Airlines

Sat 10/412:48 pmIAD - EYW

1 stop4h 58mAmerican Airlines

Deal found 9/15

$379

Thu 10/28:55 amEYW - IAD

1 stop9h 29mMultiple Airlines

Sun 10/57:14 pmIAD - EYW

1 stop13h 01mMultiple Airlines

Deal found 9/17

$219

Thu 10/28:55 amEYW - IAD

1 stop9h 29mMultiple Airlines

Mon 10/64:29 pmIAD - EYW

1 stop18h 36mMultiple Airlines

Deal found 9/17

$246

Fri 10/38:55 amEYW - IAD

1 stop9h 24mMultiple Airlines

Sun 10/51:55 pmIAD - EYW

2 stops19h 22mMultiple Airlines

Deal found 9/17

$281

Fri 10/318:55 amEYW - IAD

1 stop10h 56mMultiple Airlines

Sun 11/28:36 pmIAD - EYW

1 stop11h 39mMultiple Airlines

Deal found 9/17

$217

One-way flights from Key West to Dulles Intl
Search for one-way flight options from Key West to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated September 17, 2025.

Thu 9/2512:29 pmEYW - IAD

1 stop27h 24mAllegiant Air

Deal found 9/16

$113

Fri 10/38:55 amEYW - IAD

1 stop9h 24mMultiple Airlines

Deal found 9/17

$115

Wed 10/1510:02 amEYW - IAD

1 stop26h 20mMultiple Airlines

Deal found 9/16

$134

Tue 10/1411:45 amEYW - IAD

2 stops8h 01mMultiple Airlines

Deal found 9/16

$144

Sat 9/279:52 amEYW - IAD

2 stops27h 03mMultiple Airlines

Deal found 9/15

$154

Thu 9/2510:59 amEYW - IAD

2 stops25h 56mMultiple Airlines

Deal found 9/16

$172

Mon 10/133:56 pmEYW - IAD

2 stops27h 50mMultiple Airlines

Deal found 9/16

$182

Mon 10/139:50 amEYW - IAD

1 stop10h 56mAllegiant Air

Deal found 9/16

$190

Cheapflights Fare Finder

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

Thu 10/2

8:55 am-6:24 pm

1 stop9h 29m

Washington, D.C. Dulles Intl

Sun 10/5

7:14 pm-8:15 am

1 stop13h 01m

$219

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Fri 10/3

8:55 am-6:19 pm

1 stop9h 24m

Washington, D.C. Dulles Intl

Sun 10/5

7:14 pm-8:15 am

1 stop13h 01m

$219

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Thu 12/4

3:02 pm-11:21 pm

1 stop8h 19m

Washington, D.C. Dulles Intl

Tue 12/9

6:00 am-2:06 pm

1 stop8h 06m

$249

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Fri 12/5

3:02 pm-11:21 pm

1 stop8h 19m

Washington, D.C. Dulles Intl

Wed 12/10

6:00 am-2:06 pm

1 stop8h 06m

$249

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Thu 12/4

8:55 am-7:35 am

1 stop22h 40m

Washington, D.C. Dulles Intl

Tue 12/9

8:00 am-10:07 am

2 stops26h 07m

$253

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Fri 12/5

9:57 am-2:51 pm

1 stop4h 54m

Washington, D.C. Dulles Intl

Wed 12/10

8:00 am-8:15 am

2 stops24h 15m

$301

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Mon 9/29

12:32 pm-8:09 pm

1 stop7h 37m

Washington, D.C. Dulles Intl

Thu 10/2

7:14 pm-8:15 am

1 stop13h 01m

$302

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Fri 3/6

6:00 pm-12:07 am

1 stop6h 07m

Washington, D.C. Dulles Intl

Tue 3/10

1:00 pm-7:44 pm

1 stop6h 44m

$324

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Fri 3/6

12:30 pm-3:13 pm

Nonstop2h 43m

Washington, D.C. Dulles Intl

Tue 3/10

8:45 am-12:05 pm

Nonstop3h 20m

$369

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Thu 9/25

12:29 pm-3:53 pm

1 stop27h 24m

$113

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 17 results

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

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

8.0

Very good

7,961 reviews

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

8.0

Very good

7,961 reviews

Delta

8.0

Very good

7,961 reviews

Reviews

1 / 20

6.0

Good

pilar,May 2025

RSW - ATL

Related info for your journey

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, United Airlines can have you in Washington, D.C. Dulles Intl Airport from Key West in 8h 19m. Airlines will cover a distance of 1025 mi.
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.
What is the cheapest month to book a flight from Key West to Washington, D.C. Dulles Intl Airport?
Currently, August is the cheapest month in which you can book a flight from Key West to Washington, D.C. Dulles Intl Airport (average of $292). Flying from Key West to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Woodbridge

Arlington

Alexandria

Tysons

Silver Spring

Springfield

Gaithersburg

Fredericksburg

Linthicum Heights

Fairfax

Falls Church

Owings Mills

Manassas

Rockville

Hanover

Oxon Hill

Laurel

Towson

National Harbor

Dundalk

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from Key West to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$223	Average$268	FlexibilityNo cancel fee	On-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$113+ 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 9/25. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Key West to Dulles Intl with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Key West to Dulles Intl

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Key West to Dulles Intl

Cheapest flights from Key West to Dulles IntlExplore 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 September 17, 2025.

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 September 17, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Key West to Washington, D.C. Dulles Intl Airport that are best for you.

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.

Reviews of airlines servicing Dulles Intl

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.

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?

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

What is the cheapest airline to fly from Key West to Washington, D.C. Dulles Intl Airport round-trip?

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

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

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

What is the cheapest month to book a flight from Key West to Washington, D.C. Dulles Intl Airport?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Key West to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Key West to Dulles Intl

100% Free

Book with Flexibility

Travel Smart

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 September 17, 2025.