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Cheap flights from Belfast to District of Columbia from £478

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 17/7. Fares are subject to change and may not be available on all flights or dates of travel.
BHD — IAD
8 May — 15 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Belfast to District of Columbia

Enter your travel dates to find the best prices.

Cheapest flights from Belfast to District of Columbia
Explore the most affordable flight options available from Belfast to District of Columbia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 8 April 2026.

Wed 24/611:35
BHD
-
IAD
1 stop13h 45m
British Airways
Mon 29/622:25
IAD
-
BHD
1 stop14h 05m
British Airways
Deal found 4/4£617
Wed 30/911:35
BHD
-
DCA
2 stops16h 27m
British Airways
Sun 4/1022:00
DCA
-
BHD
2 stops28h 35m
British Airways
Deal found 7/4£633
Tue 23/613:45
BHD
-
IAD
1 stop11h 35m
American Airlines
Tue 11/820:19
IAD
-
BHD
2 stops16h 16m
American Airlines
Deal found 8/4£639
Tue 23/606:30
BHD
-
DCA
2 stops15h 43m
American Airlines
Tue 11/819:17
DCA
-
BHD
2 stops15h 03m
American Airlines
Deal found 8/4£643
Wed 24/610:05
BHD
-
IAD
1 stop12h 20m
British Airways
Sun 28/620:22
IAD
-
BHD
2 stops35h 33m
British Airways
Deal found 7/4£643
Mon 4/509:10
BFS
-
IAD
2 stops35h 00m
Multiple Airlines
Mon 11/509:55
IAD
-
BFS
2 stops21h 35m
Multiple Airlines
Deal found 7/4£647
Thu 5/1106:35
BHD
-
DCA
2 stops17h 16m
British Airways
Mon 9/1117:42
DCA
-
BHD
2 stops15h 33m
British Airways
Deal found 7/4£652
Mon 6/715:20
BHD
-
IAD
1 stop31h 05m
Multiple Airlines
Mon 21/1218:20
IAD
-
BHD
1 stop11h 20m
Multiple Airlines
Deal found 6/4£652
Mon 4/519:35
BHD
-
IAD
1 stop29h 45m
Multiple Airlines
Mon 11/522:25
IAD
-
BHD
1 stop12h 05m
Multiple Airlines
Deal found 7/4£666
Thu 7/506:30
BHD
-
IAD
1 stop15h 55m
British Airways
Mon 11/522:25
IAD
-
BHD
1 stop12h 05m
British Airways
Deal found 7/4£667
Thu 3/1211:05
BHD
-
IAD
1 stop33h 30m
British Airways
Mon 7/1218:20
IAD
-
BHD
1 stop11h 20m
British Airways
Deal found 7/4£671
Wed 30/906:30
BHD
-
IAD
1 stop18h 50m
British Airways
Sun 4/1020:15
IAD
-
BHD
2 stops16h 25m
British Airways
Deal found 5/4£674

Find flight deals from Belfast to District of Columbia

Keep the following information in mind while searching for Belfast to District of Columbia flight deals. Data was last updated 8 April 2026.

Round-trip from

£617

One-way from

£478
British Airways
  • British Airways
  • 24/6-29/6
  • 2 total stops
  • 27h 50m total
  • Belfast to District of Columbia
Search Deals
17/7
  • 17/7
  • 3 total stops
  • 41h 45m total
  • Belfast to District of Columbia
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Belfast 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 8 April 2026.
Use the filters below to find and compare flights from Belfast to District of Columbia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Wed 24/6

11:35-20:20

1 stop13h 45m

Washington, D.C. Dulles Intl

Mon 29/6

22:25-17:30

1 stop14h 05m

£617

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Wed 30/9

11:35-23:02

2 stops16h 27m

Washington, D.C. Reagan-National

Sun 4/10

22:00-07:35

2 stops28h 35m

£633

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Tue 23/6

13:45-20:20

1 stop11h 35m

Washington, D.C. Dulles Intl

Tue 11/8

20:19-17:35

2 stops16h 16m

£639

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Tue 23/6

06:30-17:13

2 stops15h 43m

Washington, D.C. Reagan-National

Tue 11/8

19:17-15:20

2 stops15h 03m

£643

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Mon 4/5

09:10-15:10

2 stops35h 00m

Washington, D.C. Dulles Intl

Mon 11/5

09:55-12:30

2 stops21h 35m

£647

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Mon 4/5

19:35-20:20

1 stop29h 45m

Washington, D.C. Dulles Intl

Mon 11/5

22:25-15:30

1 stop12h 05m

£666

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Thu 7/5

06:30-17:25

1 stop15h 55m

Washington, D.C. Dulles Intl

Mon 11/5

22:25-15:30

1 stop12h 05m

£667
Fastest return journey

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Wed 30/9

10:05-19:40

1 stop14h 35m

Washington, D.C. Dulles Intl

Sun 4/10

17:40-10:30

1 stop11h 50m

£674

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Mon 4/5

06:30-16:45

2 stops15h 15m

Washington, D.C. Reagan-National

Mon 11/5

17:41-12:55

2 stops14h 14m

£686

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Thu 21/5

15:35-17:00

2 stops30h 25m

Washington, D.C. Dulles Intl

Thu 28/5

20:20-21:45

2 stops20h 25m

£716

Flights are sorted by cheapest return flights first.

Deals found on 4/4

Showing 1-10 of 15 resultsSorted by cheapest first
1
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Best time to book a flight from Belfast to District of Columbia

Have a flexible travel schedule? Discover the best time to fly to District of Columbia from Belfast 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 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 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.

  • How long is the flight from Belfast to District of Columbia?

    Airlines like British Airways and American Airlines fly from Belfast to District of Columbia in about 13h 45m. The time it takes to get you to your destination can typically vary by up to 5h 05m. The distance between Belfast and District of Columbia is about 3390 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What are the most popular routes from Belfast to District of Columbia?

    The most popular route from Belfast to District of Columbia is Belfast Intl - Washington, D.C. Dulles Intl. You may also consider Belfast City - Washington, D.C. Dulles Intl or Belfast City - Washington, D.C. Reagan-National.

  • Can I find deals for flights from Belfast to District of Columbia that include hotel bookings?

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

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

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

    Yes. Cheapflights offers flight deals from Belfast 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.

See more FAQs

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Fly with Cheapflights

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How does Cheapflights help users find flights from Belfast to District of Columbia?

Cheapflights makes it easy to find Belfast to District of Columbia 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 District of Columbia?

Cheapflights helps you find that perfect flight to District of Columbia from Belfast by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Belfast to District of Columbia with no change fees?

Yes, we can. To see specific flights from Belfast to District of Columbia 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 District of Columbia become cheaper?

Yes, Cheapflights offers price alerts on Belfast to District of Columbia flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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