HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Dulles Intl

$90+ 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 2/26. Fares are subject to change and may not be available on all flights or dates of travel.
EYW — IAD
Feb 4 — Feb 111
Tue 2/4
Tue 2/11
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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

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 January 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$234
(Delta)

One-way from

$100
(Delta)

Popular in

August

Cheapest in

April

Average price

$372

Good one-way deal

$289 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
Average for round-trip flights in January 2025
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 January 30, 2025.

This Delta deal was found by Cheapflights users on 1/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/206:14 pmEYW - IAD
1 stop6h 06mDelta
Tue 2/256:00 amIAD - EYW
1 stop5h 38mDelta
Deal found 1/30$234
This United Airlines deal was found by Cheapflights users on 1/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/1912:12 pmEYW - IAD
Nonstop2h 40mUnited Airlines
Tue 2/258:15 amIAD - EYW
Nonstop3h 01mUnited Airlines
Deal found 1/30$259
This American Airlines deal was found by Cheapflights users on 1/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/193:57 pmEYW - IAD
2 stops7h 56mAmerican Airlines
Tue 2/251:48 pmIAD - EYW
1 stop4h 58mAmerican Airlines
Deal found 1/30$324

Find flights from Key West to Dulles Intl within your budget

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 January 30, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Thu 2/20

6:14 pm-12:20 am

1 stop6h 06m

Washington, D.C. Dulles Intl

Tue 2/25

6:00 am-11:38 am

1 stop5h 38m

$234

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Wed 2/19

12:12 pm-2:52 pm

Nonstop2h 40m

Washington, D.C. Dulles Intl

Tue 2/25

8:15 am-11:16 am

Nonstop3h 01m

$259

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Wed 2/19

3:57 pm-11:53 pm

2 stops7h 56m

Washington, D.C. Dulles Intl

Tue 2/25

1:48 pm-6:46 pm

1 stop4h 58m

$324

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Wed 2/26

12:12 pm-2:52 pm

Nonstop2h 40m

$90

Key WestWashington, D.C.

EYW - IAD

EYWIAD

Key West

Wed 3/12

6:15 pm-12:31 am

1 stop6h 16m

$100

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/30

  • 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?

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 January 30, 2025.

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

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

Plan your trip to Dulles Intl by taking into account the average temperature totals 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 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 January 30, 2025.
Delta
8.0
Very good
8,454 reviews

Overall

8.0

Crew

8.5

Boarding

8.2

Food

7.3

Comfort

8.0

Entertainment

7.9

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
8,454 reviews
Delta
8.0
Very good
8,454 reviews

Overall

8.0

Crew

8.5

Boarding

8.2

Food

7.3

Comfort

8.0

Entertainment

7.9

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.

United Airlines
7.4
Good
8,913 reviews
Delta
8.0
Very good
8,454 reviews

Overall

8.0

Crew

8.5

Boarding

8.2

Food

7.3

Comfort

8.0

Entertainment

7.9

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.

American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
8,454 reviews

Overall

8.0

Crew

8.5

Boarding

8.2

Food

7.3

Comfort

8.0

Entertainment

7.9

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.

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.

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

    According to our current data, Delta ($234), United Airlines ($259), and American Airlines ($324) 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 $100 on Delta. Other airlines that offer cheap prices include United Airlines from $130 and American Airlines from $414 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 $273. While the most popular route (Key West - Washington, D.C. Dulles Intl) can be booked for $234 on average our data indicates $337 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 $389). 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

Traveling to a place near Key West?

Book flights to Key West if you plan to visit one of these locations
Fairfax
Arlington
Alexandria
Springfield
Silver Spring
Rockville
Tysons
Gaithersburg
Fredericksburg
Linthicum Heights
Laurel
Falls Church
Sterling
Easton
Oxon Hill
Herndon
Woodbridge
Bowie
Reston
National Harbor

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.
Orlando to Dulles Intl flights
Tampa to Dulles Intl flights
Orlando to Baltimore flights
Miami to Reagan-National flights
Fort Lauderdale to Baltimore flights
Tampa to Reagan-National flights
Orlando to Reagan-National flights
Miami to Dulles Intl flights
Miami to Baltimore flights
Fort Lauderdale to Dulles Intl flights
Fort Lauderdale to Reagan-National flights
Tampa to Baltimore flights
Jacksonville to Dulles Intl flights
Jacksonville to Reagan-National flights
Fort Myers to Dulles Intl flights
West Palm Beach to Dulles Intl flights
West Palm Beach to Reagan-National flights
Fort Myers to Reagan-National flights
Jacksonville to Baltimore flights
Fort Myers to Baltimore flights
Sarasota to Reagan-National flights
West Palm Beach to Baltimore flights
Pensacola to Reagan-National flights
Pensacola to Dulles Intl flights
Sarasota to Baltimore flights
Pensacola to Baltimore flights
Valparaiso to Dulles Intl flights
Gainesville to Dulles Intl flights
Sarasota to Dulles Intl flights
Tallahassee to Reagan-National flights
Gainesville to Reagan-National flights
Panama City to Reagan-National flights
Panama City to Dulles Intl flights
Tallahassee to Dulles Intl flights
Gainesville to Baltimore flights
Valparaiso to Reagan-National flights
Panama City to Baltimore flights
Melbourne to Dulles Intl flights
Valparaiso to Baltimore flights
Melbourne to Reagan-National flights
Daytona Beach to Dulles Intl flights
Daytona Beach to Reagan-National flights
Daytona Beach to Baltimore flights
Tallahassee to Baltimore flights
Melbourne to Baltimore flights
Key West to Reagan-National flights
Key West to Baltimore flights
Valdosta to Baltimore flights
Valdosta to Reagan-National flights

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 January 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$195Average$302FlexibilityNo cancel feeOn-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.