Cheap flights from Belfast Intl Airport to District of Columbia from £724

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 24/8. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — IAD
3 Jun — 10 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Belfast Intl to District of Columbia

Enter your travel dates to find the best prices.

Cheapest flights from Belfast Intl to District of Columbia
Explore the most affordable flight options available from Belfast Intl to District of Columbia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 May 2026.

Mon 24/820:15
BFS
-
IAD
3 stops47h 55m
Multiple Airlines
Sat 29/820:30
IAD
-
BFS
2 stops18h 45m
Multiple Airlines
Deal found 4/5£724
Thu 18/620:05
BFS
-
DCA
2 stops24h 33m
Multiple Airlines
Thu 25/606:59
DCA
-
BFS
3 stops30h 56m
Multiple Airlines
Deal found 4/5£763
Tue 16/620:10
BFS
-
IAD
3 stops29h 19m
Multiple Airlines
Tue 23/608:18
IAD
-
BFS
3 stops25h 57m
Multiple Airlines
Deal found 2/5£807
Fri 15/521:00
BFS
-
IAD
2 stops23h 45m
Multiple Airlines
Sun 17/517:15
IAD
-
BFS
2 stops15h 00m
Multiple Airlines
Deal found 2/5£836
Thu 18/620:05
BFS
-
IAD
2 stops29h 35m
Multiple Airlines
Thu 25/617:15
IAD
-
BFS
2 stops17h 40m
Multiple Airlines
Deal found 4/5£923
Mon 24/810:05
BFS
-
DCA
2 stops16h 58m
Multiple Airlines
Sat 29/817:00
DCA
-
BFS
2 stops19h 10m
Multiple Airlines
Deal found 4/5£1,619

Find flight deals from Belfast Intl to District of Columbia

Keep the following information in mind while searching for Belfast Intl to District of Columbia flight deals. Data was last updated 4 May 2026.

Round-trip from

£724
24/8-29/8
  • 24/8-29/8
  • 5 total stops
  • 66h 40m total
  • Belfast to District of Columbia

Cheapflights Fare Finder

 
Customise your flight search to find flights from Belfast Intl to District of Columbia 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 4 May 2026.
Use the filters below to find and compare flights from Belfast Intl Airport to District of Columbia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Mon 24/8

20:15-15:10

3 stops47h 55m

Washington, D.C. Dulles Intl

Sat 29/8

20:30-20:15

2 stops18h 45m

£724

BelfastWashington, D.C.

BFS - DCA

BFSDCA

Belfast Intl

Thu 18/6

20:05-15:38

2 stops24h 33m

Washington, D.C. Reagan-National

Thu 25/6

06:59-18:55

3 stops30h 56m

£763

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Tue 16/6

20:10-20:29

3 stops29h 19m

Washington, D.C. Dulles Intl

Tue 23/6

08:18-15:15

3 stops25h 57m

£807

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Fri 15/5

21:00-15:45

2 stops23h 45m

Washington, D.C. Dulles Intl

Sun 17/5

17:15-13:15

2 stops15h 00m

£836

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Thu 18/6

20:05-19:00

3 stops27h 55m

Washington, D.C. Dulles Intl

Thu 25/6

17:15-15:55

2 stops17h 40m

£949
Fastest return journey

BelfastWashington, D.C.

BFS - DCA

BFSDCA

Belfast Intl

Mon 24/8

10:05-22:03

2 stops16h 58m

Washington, D.C. Reagan-National

Sat 29/8

17:00-17:10

2 stops19h 10m

£1,619

Flights are sorted by cheapest return flights first.

Deals found on 4/5

Sorted by cheapest first

Best time to book a flight from Belfast Intl to District of Columbia

Have a flexible travel schedule? Discover the best time to fly to District of Columbia from Belfast Intl with our price prediction graph.
Estimated return 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 District of Columbia
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Belfast Intl to District of Columbia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • Can I find deals for flights from Belfast Intl to District of Columbia that include hotel bookings?

    Yes. In addition to deals on Belfast Intl to District of Columbia flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Belfast Intl to District of Columbia?

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

  • Can I find deals for business class flights from Belfast Intl to District of Columbia?

    Yes. Cheapflights offers flight deals from Belfast Intl to District of Columbia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Alternative routes for Belfast Intl to District of Columbia

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Why should you use Cheapflights to find cheap flight tickets from Belfast Intl to District of Columbia?

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