Cheap flights from Belfast to Washington, D.C. from £444
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 7/8. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from Belfast to Washington, D.C.
Discover tips and strategies to find the most affordable flight options for your journey from Belfast (BF1) to Washington, D.C. (WAS). 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 11 July 2025.
Round-trip from | £556 |
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One-way from | £444 |
Find flight deals from Belfast to Washington, D.C.
Cheapest flights from Belfast to Washington, D.C.Explore the most affordable flight options available from Belfast to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 July 2025.
Explore the most affordable flight options available from Belfast to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 July 2025.
Cheapflights Fare Finder
Customise your flight search to find flights from Belfast 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 858,174 searches. Data last updated 11 July 2025.
Use the filters below to find and compare flights from Belfast to Washington, D.C. that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
BelfastWashington, D.C.
BHD - IAD
BHDIAD
Belfast City
Thu 20/11
15:05-19:45
1 stop33h 40m
Washington, D.C. Dulles Intl
Mon 24/11
10:52-10:30
2 stops18h 38m
BelfastWashington, D.C.
BHD - DCA
BHDDCA
Belfast City
Thu 20/11
09:00-22:15
2 stops18h 15m
Washington, D.C. Reagan-National
Mon 24/11
14:54-10:30
2 stops14h 36m
BelfastWashington, D.C.
BFS - IAD
BFSIAD
Belfast Intl
Thu 7/8
06:10-22:10
2 stops21h 00m
Washington, D.C. Dulles Intl
Mon 11/8
20:30-22:25
2 stops20h 55m
BelfastWashington, D.C.
BHD - IAD
BHDIAD
Belfast City
Thu 7/8
07:05-22:10
2 stops20h 05m
Washington, D.C. Dulles Intl
Mon 11/8
20:30-20:25
2 stops18h 55m
BelfastWashington, D.C.
BHD - DCA
BHDDCA
Belfast City
Thu 7/8
06:30-16:33
2 stops15h 03m
Washington, D.C. Reagan-National
Mon 11/8
17:00-16:55
2 stops18h 55m
BelfastWashington, D.C.
BHD - IAD
BHDIAD
Belfast City
Thu 7/8
06:30-19:51
2 stops18h 21m
Washington, D.C. Dulles Intl
Mon 11/8
17:25-16:55
1 stop18h 30m
BelfastBaltimore
BFS - BWI
BFSBWI
Belfast Intl
Sun 24/8
23:30-17:40
2 stops23h 10m
Baltimore/Washington
Sun 31/8
10:04-23:05
3 stops32h 01m
BelfastWashington, D.C.
BHD - IAD
BHDIAD
Belfast City
Thu 7/8
17:25-15:35
1 stop27h 10m
Washington, D.C. Dulles Intl
Mon 11/8
17:25-21:15
1 stop22h 50m
BelfastBaltimore
BHD - BWI
BHDBWI
Belfast City
Thu 7/8
09:35-19:35
1 stop15h 00m
Baltimore/Washington
Mon 11/8
17:38-12:55
2 stops14h 17m
BelfastBaltimore
BHD - BWI
BHDBWI
Belfast City
Thu 7/8
07:05-19:25
2 stops17h 20m
Baltimore/Washington
Mon 11/8
20:30-20:25
2 stops18h 55m
Best time to book a flight from Belfast to Washington, D.C.
Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Belfast with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Belfast to Washington, D.C.
What is the cheapest time of day to fly from BFS to WAS?
Find hourly flight availability from Belfast to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 11 July 2025.
When flying from Belfast to Washington, D.C., the time of day you fly usually plays a role in the price. Save by searching for a flight at midday, which can drop the price by up to 18% versus a flight in the morning.
Reviews of airlines servicing Washington, D.C.
Get insights into the airlines that provide service to Washington, D.C.. 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 Washington, D.C.. Reviews last updated 11 July 2025.
Get a feel of what it's like to fly with Delta, KLM, andAmerican Airlines from Belfast to Washington, D.C. by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
Overall
Entertainment
Crew
Comfort
Boarding
Reviews
Michael,Jul 2025
AMS - ATL
Food
Overall
Entertainment
Crew
Comfort
Boarding
Reviews
Michael,Jul 2025
AMS - ATL
Food
Overall
Entertainment
Crew
Comfort
Boarding
Reviews
Michael,Jul 2025
AMS - ATL
Food
Overall
Entertainment
Crew
Comfort
Boarding
Reviews
Michael,Jul 2025
AMS - ATL
Related info for your journey
Find useful and relevant information for your journey from Belfast 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.
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Alternative routes for Belfast to Washington, D.C.
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How does Cheapflights help users find flights from Belfast to Washington, D.C.?
Cheapflights makes it easy to find Belfast to Washington, D.C. flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.
Why should you use Cheapflights to find cheap flight tickets from Belfast to Washington, D.C.?
By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Washington, D.C. from Belfast.
Can Cheapflights find flights from Belfast to Washington, D.C. with no change fees?
Yes, we can. To see specific flights from Belfast to Washington, D.C. with no change fees, users can toggle flexible booking options after using the search form above to find flights.
Can Cheapflights notify me if prices for flights from Belfast to Washington, D.C. become cheaper?
Not ready to book yet? You can track prices for flights from Belfast to Washington, D.C. on Cheapflights with our Price Alert feature and get notified when better prices are available.