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Cheap flights from District of Columbia to Belfast from £184

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 22/8. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — BHD
16 Aug — 23 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from District of Columbia to Belfast

Enter your travel dates to find the best prices.

Cheapest flights from District of Columbia to Belfast
Explore the most affordable flight options available from District of Columbia to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 July 2026.

Tue 24/1119:40
IAD
-
BFS
2 stops20h 15m
Multiple Airlines
Sun 29/1122:00
BFS
-
IAD
3 stops45h 45m
Multiple Airlines
Deal found 13/7£584
Sun 6/920:30
IAD
-
BFS
2 stops20h 20m
Multiple Airlines
Sat 12/920:15
BFS
-
IAD
3 stops47h 55m
Multiple Airlines
Deal found 11/7£586
Sat 29/820:30
IAD
-
BFS
3 stops18h 50m
Multiple Airlines
Sat 5/906:20
BFS
-
IAD
2 stops20h 55m
Multiple Airlines
Deal found 15/7£591
Sat 22/809:55
IAD
-
BFS
2 stops18h 00m
Multiple Airlines
Sat 29/820:15
BFS
-
IAD
3 stops47h 55m
Multiple Airlines
Deal found 12/7£672
Tue 24/1118:05
IAD
-
BHD
1 stop12h 25m
British Airways
Sun 29/1109:10
BHD
-
IAD
1 stop11h 30m
British Airways
Deal found 13/7£680
Sat 22/806:00
DCA
-
BFS
3 stops21h 55m
Multiple Airlines
Sat 29/822:25
BFS
-
DCA
2 stops29h 06m
Multiple Airlines
Deal found 14/7£684
Tue 11/817:05
IAD
-
BFS
2 stops23h 15m
Multiple Airlines
Tue 18/822:45
BFS
-
IAD
2 stops21h 39m
Multiple Airlines
Deal found 14/7£686
Tue 1/917:05
IAD
-
BFS
2 stops17h 50m
Multiple Airlines
Mon 7/909:10
BFS
-
IAD
2 stops35h 00m
Multiple Airlines
Deal found 11/7£689
Wed 14/1022:25
IAD
-
BHD
1 stop10h 10m
British Airways
Mon 19/1018:30
BHD
-
IAD
1 stop27h 55m
British Airways
Deal found 14/7£731
Fri 21/823:20
IAD
-
BHD
2 stops16h 40m
Multiple Airlines
Sat 29/807:20
BHD
-
IAD
2 stops18h 04m
Multiple Airlines
Deal found 12/7£732
Tue 11/806:00
DCA
-
BFS
3 stops28h 15m
Multiple Airlines
Tue 18/822:45
BFS
-
DCA
2 stops28h 46m
Multiple Airlines
Deal found 14/7£740
Tue 24/1119:40
IAD
-
BHD
2 stops18h 50m
Multiple Airlines
Sun 29/1109:10
BHD
-
IAD
1 stop11h 30m
Multiple Airlines
Deal found 13/7£747

Find flight deals from District of Columbia to Belfast

Keep the following information in mind while searching for District of Columbia to Belfast flight deals. Data was last updated 17 July 2026.

Round-trip from

£584

One-way from

£184
24/11-29/11
  • 24/11-29/11
  • 5 total stops
  • 66h 00m total
  • District of Columbia to Belfast
Search Deals
22/8
  • 22/8
  • 3 total stops
  • 31h 20m total
  • District of Columbia to Belfast
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from District of Columbia to Belfast 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 17 July 2026.
Use the filters below to find and compare flights from District of Columbia to Belfast that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Tue 24/11

19:40-20:55

2 stops20h 15m

Belfast Intl

Sun 29/11

22:00-14:45

3 stops45h 45m

£584

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Sun 6/9

20:30-21:50

2 stops20h 20m

Belfast Intl

Sat 12/9

20:15-15:10

3 stops47h 55m

£586

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Sat 29/8

20:30-20:20

3 stops18h 50m

Belfast Intl

Sat 5/9

06:20-22:15

2 stops20h 55m

£591

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Tue 1/9

23:20-21:05

2 stops16h 45m

Belfast Intl

Mon 7/9

20:15-15:10

3 stops47h 55m

£591

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Sat 22/8

20:30-17:10

2 stops15h 40m

Belfast Intl

Sat 29/8

20:15-15:10

3 stops47h 55m

£680

Washington, D.C.Belfast

DCA - BFS

DCABFS

Washington, D.C. Reagan-National

Sat 22/8

06:00-08:55

3 stops21h 55m

Belfast Intl

Sat 29/8

22:25-22:31

2 stops29h 06m

£684

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Thu 3/9

11:25-22:50

3 stops30h 25m

Belfast Intl

Mon 7/9

20:15-15:10

3 stops47h 55m

£718

Washington, D.C.Belfast

DCA - BFS

DCABFS

Washington, D.C. Reagan-National

Tue 11/8

06:00-15:15

3 stops28h 15m

Belfast Intl

Tue 18/8

22:45-22:31

2 stops28h 46m

£740

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Tue 11/8

14:59-10:45

2 stops14h 46m

Belfast City

Tue 18/8

20:25-23:33

2 stops32h 08m

£758

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Fri 11/9

19:15-20:35

1 stop20h 20m

Belfast City

Wed 16/9

11:35-20:20

1 stop13h 45m

£759

Flights are sorted by cheapest return flights first.

Deals found on 13/7

Showing 1-10 of 48 resultsSorted by cheapest first
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Best time to book a flight from District of Columbia to Belfast

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

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 District of Columbia to Belfast. 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 District of Columbia to Belfast?

    There are many flights that can get you from District of Columbia to Belfast in 14h 46m. Fly via British Airways or Delta to get the fastest option. The distance between District of Columbia and Belfast is about 3378 mi. This flight may include one or multiple stops.

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

    Most travelers choose Washington, D.C. Dulles Intl - Belfast Intl, Washington, D.C. Reagan-National - Belfast Intl or Washington, D.C. Dulles Intl - Belfast City when deciding on the best route from District of Columbia to Belfast.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from District of Columbia to Belfast 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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When you search for this flight from District of Columbia to Belfast, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from District of Columbia to Belfast.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from District of Columbia to Belfast, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from District of Columbia to Belfast become cheaper?

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