Cheap flights from Belfast to District of Columbia from £584

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Belfast to District of Columbia departing on 28/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Find the cheapest flights from Belfast to District of Columbia

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
22:10 - 15:10
BFS
-
IAD
46h 00m
3 stops
Multiple Airlines Logo
17:15 - 18:50
IAD
-
BFS
20h 35m
2 stops
£618Multiple Airlines
Sun, 7 Jun - Sun, 14 Jun
Multiple Airlines Logo
09:55 - 22:15
BFS
-
IAD
17h 20m
2 stops
Multiple Airlines Logo
23:20 - 20:15
IAD
-
BFS
15h 55m
2 stops
£625Multiple Airlines
Sun, 7 Jun - Sun, 14 Jun
Multiple Airlines Logo
07:35 - 19:00
BFS
-
IAD
40h 25m
3 stops
Multiple Airlines Logo
08:18 - 16:20
IAD
-
BFS
27h 02m
3 stops
£672Multiple Airlines
Fri, 5 Jun - Tue, 16 Jun
Multiple Airlines Logo
22:30 - 20:35
BFS
-
IAD
27h 05m
3 stops
Multiple Airlines Logo
08:18 - 16:20
IAD
-
BFS
27h 02m
3 stops
£682Multiple Airlines
Tue, 9 Jun - Tue, 16 Jun
British Airways Logo
06:30 - 17:30
BHD
-
IAD
16h 00m
1 stop
British Airways Logo
19:20 - 10:45
IAD
-
BHD
10h 25m
1 stop
£709British Airways
Fri, 5 Jun - Tue, 16 Jun
American Airlines Logo
09:40 - 20:20
BHD
-
IAD
15h 40m
1 stop
American Airlines Logo
17:34 - 15:20
IAD
-
BHD
16h 46m
2 stops
£712American Airlines
Tue, 23 Jun - Tue, 11 Aug
British Airways Logo
09:35 - 00:13
BHD
-
IAD
19h 38m
2 stops
British Airways Logo
19:20 - 10:45
IAD
-
BHD
10h 25m
1 stop
£716British Airways
Fri, 5 Jun - Tue, 16 Jun
American Airlines Logo
13:45 - 20:20
BHD
-
IAD
11h 35m
1 stop
American Airlines Logo
17:34 - 15:20
IAD
-
BHD
16h 46m
2 stops
£723American Airlines
Tue, 23 Jun - Tue, 11 Aug
Aer Lingus Logo
06:50 - 19:10
BHD
-
IAD
17h 20m
2 stops
Aer Lingus Logo
17:15 - 17:50
IAD
-
BHD
19h 35m
2 stops
£802Aer Lingus
Thu, 21 May - Thu, 28 May
Delta Logo
09:50 - 23:24
BHD
-
DCA
18h 34m
2 stops
Delta Logo
10:00 - 09:20
DCA
-
BHD
18h 20m
2 stops
£959Delta
Thu, 21 May - Thu, 28 May

British Airways flights from Belfast to District of Columbia

Our best British Airways deals on Belfast to District of Columbia flight tickets
British Airways
5 Jun
BHD06:30Belfast City
16h 00m
1 stop
IAD17:30Washington, D.C. Dulles Intl
16 Jun
IAD19:20Washington, D.C. Dulles Intl
10h 25m
1 stop
BHD10:45Belfast City
£709
British Airways
5 Jun
BHD09:35Belfast City
19h 38m
2 stops
IAD00:13Washington, D.C. Dulles Intl
16 Jun
IAD19:20Washington, D.C. Dulles Intl
10h 25m
1 stop
BHD10:45Belfast City
£716
British Airways
1 Oct
BHD09:35Belfast City
19h 24m
2 stops
DCA23:59Washington, D.C. Reagan-National
5 Oct
DCA19:06Washington, D.C. Reagan-National
12h 49m
2 stops
BHD12:55Belfast City
£733

American Airlines flights from Belfast to District of Columbia

Our best American Airlines deals on Belfast to District of Columbia flight tickets
American Airlines
23 Jun
BHD09:40Belfast City
15h 40m
1 stop
IAD20:20Washington, D.C. Dulles Intl
11 Aug
IAD17:34Washington, D.C. Dulles Intl
16h 46m
2 stops
BHD15:20Belfast City
£712
American Airlines
23 Jun
BHD13:45Belfast City
11h 35m
1 stop
IAD20:20Washington, D.C. Dulles Intl
11 Aug
IAD17:34Washington, D.C. Dulles Intl
16h 46m
2 stops
BHD15:20Belfast City
£723
American Airlines
23 Jun
BHD16:25Belfast City
30h 05m
1 stop
IAD17:30Washington, D.C. Dulles Intl
11 Aug
IAD17:34Washington, D.C. Dulles Intl
16h 46m
2 stops
BHD15:20Belfast City
£723

momondo 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, momondo users made 279,928 searches. Data last updated 27 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.

BFS - IAD

BFSIAD

Belfast Intl

Sun 7/6

22:10-15:10

3 stops46h 00m

Washington, D.C. Dulles Intl

Sun 14/6

17:15-18:50

2 stops20h 35m

£618

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Sun 7/6

09:55-22:15

2 stops17h 20m

Washington, D.C. Dulles Intl

Sun 14/6

23:20-20:15

2 stops15h 55m

£625

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Fri 5/6

07:35-19:00

3 stops40h 25m

Washington, D.C. Dulles Intl

Tue 16/6

08:18-16:20

3 stops27h 02m

£672

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Tue 9/6

22:30-20:35

3 stops27h 05m

Washington, D.C. Dulles Intl

Tue 16/6

08:18-16:20

3 stops27h 02m

£682
Fastest return journey

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Fri 5/6

06:30-17:30

1 stop16h 00m

Washington, D.C. Dulles Intl

Tue 16/6

19:20-10:45

1 stop10h 25m

£709

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Tue 23/6

09:40-20:20

1 stop15h 40m

Washington, D.C. Dulles Intl

Tue 11/8

17:34-15:20

2 stops16h 46m

£712

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Fri 5/6

09:35-00:13

2 stops19h 38m

Washington, D.C. Dulles Intl

Tue 16/6

19:20-10:45

1 stop10h 25m

£716

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

17:34-15:20

2 stops16h 46m

£723

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Thu 21/5

06:50-19:10

2 stops17h 20m

Washington, D.C. Dulles Intl

Thu 28/5

17:15-17:50

2 stops19h 35m

£802

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Thu 21/5

09:50-23:24

2 stops18h 34m

Washington, D.C. Reagan-National

Thu 28/5

10:00-09:20

2 stops18h 20m

£959

Flights are sorted by cheapest return flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
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Cheap Belfast to District of Columbia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Belfast to District of Columbia

Fastest flight time

14h 29m

Direct flights

None
The fastest flight from Belfast to District of Columbia takes 14h 29m
There are no direct flights from Belfast to District of Columbia. There are no popular flight routes from Belfast to District of Columbia.

Frequently asked questions about flying from Belfast to District of Columbia

  • When did momondo last update prices for flights from Belfast to District of Columbia?

    Prices for flights from Belfast to District of Columbia were last updated today.

  • How old do you have to be to fly from Belfast to District of Columbia?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Belfast to District of Columbia.

  • What documentation or ID do you need to fly to District of Columbia?

    The necessary travel and health documents for your District of Columbia trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Frequently asked questions about flying from Belfast to District of Columbia

  • How do I get Price Alerts for flights from Belfast to District of Columbia?

    Confirm your travel details to search for the latest offers for flights from Belfast to District of Columbia. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

  • How can I save money on flights from Belfast to District of Columbia with momondo?

    By using tools like our “Price Calendar”, you can see the best days for return flights on your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

Why use momondo?

Why should I use momondo to find a flight deal from Belfast to District of Columbia?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Belfast to District of Columbia. momondo saves you time and could save you money on your trip.

Can I find flights from Belfast to District of Columbia with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to District of Columbia from Belfast with this policy.

How can momondo help me find flights from Belfast to District of Columbia?

momondo provides multiple filters to help you find the best flight to District of Columbia from Belfast. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Belfast to District of Columbia right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Belfast to District of Columbia flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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1 adult
Wed 27/5
Wed 3/6

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