Washington, D.C.

$673+ Cheap flights from Belfast Intl (BFS) to Washington, D.C. (WAS)

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 8/1. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — WAS
Jul 30 — Aug 61
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Find flight deals from Belfast Intl to Washington, D.C.

One-way flights from Belfast Intl to Washington, D.C.
Search for one-way flight options from Belfast Intl to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated July 25, 2025.

This Kiwi.com deal was found by Cheapflights users on 7/24. 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.
Fri 8/18:35 amBFS - BWI
2 stops38h 05mMultiple Airlines
Deal found 7/24$673
This Kiwi.com deal was found by Cheapflights users on 7/24. 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.
Fri 8/110:10 pmBFS - IAD
3 stops50h 10mMultiple Airlines
Deal found 7/24$820
This Kiwi.com deal was found by Cheapflights users on 7/24. 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.
Fri 8/18:35 amBFS - DCA
3 stops44h 00mMultiple Airlines
Deal found 7/24$1,039

Cheapflights Fare Finder

 
Customize your flight search to find flights from Belfast Intl to Washington, D.C. 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 July 25, 2025.
Use the filters below to find and compare flights from Belfast Intl Airport to Washington, D.C. that are best for you.

Fly from

Belfast Intl

Fly to

Washington, D.C.

Route

Depart

Return

Price

BelfastBaltimore

BFS - BWI

BFSBWI

Belfast Intl

Fri 8/1

8:35 am-5:40 pm

2 stops38h 05m

$673

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Fri 8/1

10:10 pm-7:20 pm

3 stops50h 10m

$820

BelfastWashington, D.C.

BFS - DCA

BFSDCA

Belfast Intl

Fri 8/1

8:35 am-11:35 pm

3 stops44h 00m

$1,039

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/24

Best time to book a flight from Belfast Intl to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Belfast Intl 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 Belfast Intl Airport to Washington, D.C.
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Related info for your journey

Find useful and relevant information for your journey from Belfast Intl to Washington, D.C.. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What are the most popular routes from Belfast Intl Airport to Washington, D.C.?

  • Can I find deals for flights from Belfast Intl to Washington, D.C. that include hotel bookings?

    Yes. In addition to deals on Belfast Intl to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Belfast Intl to Washington, D.C.?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Belfast Intl to Washington, D.C..

  • Can I find deals for business class flights from Belfast Intl to Washington, D.C.?

    Yes. Cheapflights offers flight deals from Belfast Intl to Washington, D.C. 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 Belfast Intl Airport to Washington, D.C.?

    Currently, August is the cheapest month in which you can book a flight from Belfast Intl Airport to Washington, D.C. (average of $309). Flying from Belfast Intl Airport to Washington, D.C. 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

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Woodbridge
Arlington
Alexandria
Tysons
Silver Spring
Fredericksburg
Gaithersburg
Easton
Towson
Linthicum Heights
Fairfax
Manassas
Falls Church
Waldorf
Laurel
Rockville
Oxon Hill
Springfield
National Harbor
Dundalk

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