What are the cheapest airlines flying from Key West to Washington, D.C. Dulles Intl Airport round-trip?

According to our current data, Delta ($225), United Airlines ($259), and American Airlines ($487) offers the cheapest pricing from Key West to Washington, D.C. Dulles Intl Airport.

What are the cheapest airlines to fly from Key West to Washington, D.C. Dulles Intl Airport one-way?

One-way options have recently been found by users for as low as $176 on American Airlines. Other airlines that offer cheap prices include United Airlines from $197 and Delta from $217 one-way.

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 $309). Flying from Key West to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $388). 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.

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 $129. While the most popular route (Key West - Washington, D.C. Dulles Intl) can be booked for $294 on average our data indicates $531 when flying from Key West to Washington, D.C. Dulles Intl Airport.

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

Wednesday is generally a great day to depart. Flying on this day could help you save up to 63%.

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

Flights from Key West to Washington, D.C. Dulles Intl Airport lean towards being more expensive in August. Prices are generally better when you fly from Key West to Washington, D.C. Dulles Intl Airport in April, with the cheapest ticket starting at $208.

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.

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.

$100+ Save on 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

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$225 (Delta)
One-way from	$139 (Trip.com)
Popular in	August
Cheapest in	April
Good round-trip deal	$414 or less
Good one-way deal	$454 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. 12% potential increase in price ($49 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).

Search Deals

Price to beat on a round-trip flight from Key West to Washington, D.C. Dulles Intl.

Search Deals

Price to beat on a one-way flight from Key West to Washington, D.C. Dulles Intl.

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 March 4, 2025.

Wed 3/196:15 pmEYW - IAD

1 stop6h 16mDelta

Tue 4/17:35 amIAD - EYW

1 stop6h 15mDelta

Deal found 3/4

$225

Tue 3/2512:45 pmEYW - IAD

Nonstop2h 40mUnited Airlines

Wed 3/268:40 amIAD - EYW

Nonstop3h 01mUnited Airlines

Deal found 3/3

$259

Fri 3/215:08 pmEYW - IAD

3 stops47h 07mMultiple Airlines

Sat 3/298:25 amIAD - EYW

3 stops25h 11mMultiple Airlines

Deal found 3/4

$446

Fri 7/47:32 pmEYW - IAD

2 stops15h 16mAmerican Airlines

Tue 7/159:13 amIAD - EYW

2 stops9h 49mAmerican Airlines

Deal found 3/2

$487

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 March 4, 2025.

Wed 3/196:15 pmEYW - IAD

1 stop6h 16mDelta

Tue 3/251:48 pmIAD - EYW

1 stop6h 42mDelta

Deal found 3/4

$225

Tue 3/2512:45 pmEYW - IAD

Nonstop2h 40mUnited Airlines

Wed 3/268:40 amIAD - EYW

Nonstop3h 01mUnited Airlines

Deal found 3/3

$259

Fri 3/215:08 pmEYW - IAD

3 stops47h 07mMultiple Airlines

Sat 3/298:25 amIAD - EYW

3 stops25h 11mMultiple Airlines

Deal found 3/4

$446

Fri 7/47:32 pmEYW - IAD

2 stops17h 06mAmerican Airlines

Tue 7/156:55 amIAD - EYW

2 stops5h 57mAmerican Airlines

Deal found 3/3

$487

Last-minute flights from Key West to Dulles Intl
Discover last-minute flight deals from Key West to Dulles Intl. Data last updated March 4, 2025 and is based on user searches.

Sun 3/910:55 amEYW - IAD

1 stop24h 37mUnited Airlines

Wed 3/128:40 amIAD - EYW

Nonstop3h 01mUnited Airlines

Deal found 3/4

$551

Sun 3/98:53 amEYW - IAD

2 stops27h 57mMultiple Airlines

Thu 3/138:25 amIAD - EYW

2 stops31h 53mMultiple Airlines

Deal found 3/4

$618

Sun 3/97:00 amEYW - IAD

2 stops12h 19mDelta

Wed 3/126:00 amIAD - EYW

2 stops11h 20mDelta

Deal found 3/4

$2,424

Wed 3/196:15 pmEYW - IAD

1 stop6h 16mDelta

Tue 3/251:48 pmIAD - EYW

1 stop6h 42mDelta

Deal found 3/4

$225

Fri 3/215:08 pmEYW - IAD

3 stops47h 07mMultiple Airlines

Sat 3/298:25 amIAD - EYW

3 stops25h 11mMultiple Airlines

Deal found 3/4

$446

Tue 3/2512:45 pmEYW - IAD

Nonstop2h 40mUnited Airlines

Wed 3/268:40 amIAD - EYW

Nonstop3h 01mUnited Airlines

Deal found 3/3

$259

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 March 4, 2025.

Mon 3/2410:00 amEYW - IAD

1 stop5h 41mMultiple Airlines

Deal found 3/3

$139

Tue 3/115:24 pmEYW - IAD

1 stop6h 34mAmerican Airlines

Deal found 3/4

$176

Fri 5/210:55 amEYW - IAD

2 stops27h 33mUnited Airlines

Deal found 3/3

$197

Fri 5/26:13 pmEYW - IAD

1 stop17h 10mDelta

Deal found 3/3

$217

Find flights from Key West to Dulles Intl within your budget

Fly from

Fly to

Route

Depart

Return

Price

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Wed 3/19

6:15 pm-12:31 am

1 stop6h 16m

Washington, D.C. Dulles Intl

Tue 3/25

1:48 pm-8:30 pm

1 stop6h 42m

$225

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Tue 3/25

12:45 pm-3:25 pm

Nonstop2h 40m

Washington, D.C. Dulles Intl

Wed 3/26

8:40 am-11:41 am

Nonstop3h 01m

$259

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Fri 3/21

5:08 pm-4:15 pm

3 stops47h 07m

Washington, D.C. Dulles Intl

Sat 3/29

8:25 am-9:36 am

3 stops25h 11m

$446

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Fri 7/4

7:32 pm-10:48 am

2 stops15h 16m

Washington, D.C. Dulles Intl

Tue 7/15

9:13 am-7:02 pm

2 stops9h 49m

$487

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Wed 4/2

6:15 pm-12:31 am

1 stop6h 16m

$100

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Mon 3/24

10:00 am-3:41 pm

1 stop5h 41m

$139

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Tue 3/11

5:24 pm-11:58 pm

1 stop6h 34m

$176

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Wed 4/2

10:55 am-2:33 pm

2 stops27h 38m

$197

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/4

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.

Travel insights for flights from Key West to Dulles Intl

Get recent, data-driven insights about flights from Key West to Dulles Intl including ideal travel times, pricing trends, and more.

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.

Rainfall in Dulles Intl by month

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.

Temperature in Dulles Intl by month

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).

Reviews of airlines servicing Dulles Intl

Get a feel of what it's like to fly with Delta, United Airlines and American Airlines from Key West to Washington, D.C. by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

8,061 reviews

Reviews

1 / 20

2.0

Mediocre

Santiago,Apr 2024

MCO - ATL

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Delta

8.0

Very good

8,061 reviews

Delta

8.0

Very good

8,061 reviews

Reviews

1 / 20

2.0

Mediocre

Santiago,Apr 2024

MCO - ATL

United Airlines

7.4

Good

8,678 reviews

Delta

8.0

Very good

8,061 reviews

Reviews

1 / 20

2.0

Mediocre

Santiago,Apr 2024

MCO - ATL

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

8,061 reviews

Reviews

1 / 20

2.0

Mediocre

Santiago,Apr 2024

MCO - 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.
What are the cheapest airlines flying from Key West to Washington, D.C. Dulles Intl Airport round-trip?
According to our current data, Delta ($225), United Airlines ($259), and American Airlines ($487) offers the cheapest pricing from Key West to Washington, D.C. Dulles Intl Airport.
What are the cheapest airlines to fly from Key West to Washington, D.C. Dulles Intl Airport one-way?
One-way options have recently been found by users for as low as $176 on American Airlines. Other airlines that offer cheap prices include United Airlines from $197 and Delta from $217 one-way.
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 $129. While the most popular route (Key West - Washington, D.C. Dulles Intl) can be booked for $294 on average our data indicates $531 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.
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 $309). Flying from Key West to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $388). 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

Arlington

Alexandria

Fairfax

Tysons

Springfield

Rockville

Gaithersburg

Fredericksburg

Silver Spring

Linthicum Heights

Woodbridge

Laurel

Falls Church

Easton

Herndon

Sterling

Bowie

Gettysburg

National Harbor

Oxon Hill

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$195	Average$302	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.

$100+ 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 4/2. 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

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Good round-trip deal

Good one-way deal

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 March 4, 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 March 4, 2025.

Find flights from Key West to Dulles Intl within your budget

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.

Travel insights for flights from Key West to Dulles Intl

Get recent, data-driven insights about flights from Key West to Dulles Intl including ideal travel times, pricing trends, and more.

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 March 4, 2025.

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

Reviews of airlines servicing Dulles Intl

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?

What are the cheapest airlines flying from Key West to Washington, D.C. Dulles Intl Airport round-trip?

What are the cheapest airlines to fly from Key West to Washington, D.C. Dulles Intl Airport one-way?

What are the cheapest flights 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?

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 Key West?

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 March 4, 2025.