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Cheap flights from Washington, D.C. to Belfast from £220

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to Belfast departing on 16/11. 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 Washington, D.C. to Belfast

Cheap return flights

Enter your travel dates to find the best prices.
British Airways Logo
18:20 - 10:20IAD-BHD
11h 00m1 stop
British Airways Logo
09:05 - 16:35BHD-IAD
11h 30m1 stop
£484British Airways
Find Deal
Thu, 5 Mar - Thu, 12 Mar
British Airways Logo
22:45 - 16:05IAD-BHD
13h 20m1 stop
British Airways Logo
20:25 - 16:35BHD-IAD
24h 10m1 stop
£493British Airways
Find Deal
Mon, 16 Mar - Sun, 22 Mar
Multiple Airlines Logo
18:05 - 16:50IAD-BHD
17h 45m1 stop
Multiple Airlines Logo
17:20 - 16:05BHD-IAD
27h 45m1 stop
£500Multiple Airlines
Find Deal
Wed, 26 Nov - Wed, 3 Dec
KLM Logo
18:05 - 21:00IAD-BHD
21h 55m1 stop
KLM Logo
17:20 - 16:05BHD-IAD
27h 45m1 stop
£501KLM
Find Deal
Sun, 23 Nov - Mon, 1 Dec
American Airlines Logo
17:23 - 10:40DCA-BHD
13h 17m2 stops
American Airlines Logo
10:40 - 22:46BHD-DCA
16h 06m2 stops
£502American Airlines
Find Deal
Mon, 16 Mar - Sun, 22 Mar
Delta Logo
15:35 - 16:50IAD-BHD
20h 15m2 stops
Delta Logo
17:20 - 16:05BHD-IAD
27h 45m1 stop
£504Delta
Find Deal
Mon, 24 Nov - Tue, 2 Dec
Multiple Airlines Logo
18:05 - 16:50IAD-BHD
17h 45m1 stop
Multiple Airlines Logo
06:30 - 17:03BHD-IAD
15h 33m2 stops
£508Multiple Airlines
Find Deal
Wed, 26 Nov - Wed, 3 Dec
KLM Logo
18:05 - 21:00IAD-BHD
21h 55m1 stop
KLM Logo
06:30 - 17:03BHD-IAD
15h 33m2 stops
£509KLM
Find Deal
Wed, 26 Nov - Wed, 3 Dec
Delta Logo
12:23 - 16:50IAD-BHD
23h 27m2 stops
Delta Logo
06:30 - 17:05BHD-IAD
14h 35m1 stop
£511Delta
Find Deal
Thu, 5 Mar - Thu, 12 Mar
American Airlines Logo
17:23 - 10:30DCA-BHD
13h 07m2 stops
American Airlines Logo
07:05 - 17:09BHD-DCA
15h 04m2 stops
£514American Airlines
Find Deal
Fri, 27 Mar - Sat, 4 Apr

KLM flights from Washington, D.C. to Belfast

Our best KLM deals on Washington, D.C. to Belfast flight tickets
KLM
23 Nov
IAD18:05Washington, D.C. Dulles Intl
21h 55m
1 stop
BHD21:00Belfast City
1 Dec
BHD17:20Belfast City
27h 45m
1 stop
IAD16:05Washington, D.C. Dulles Intl
£501
Find similar
KLM
26 Nov
IAD18:05Washington, D.C. Dulles Intl
21h 55m
1 stop
BHD21:00Belfast City
3 Dec
BHD06:30Belfast City
15h 33m
2 stops
IAD17:03Washington, D.C. Dulles Intl
£509
Find similar
KLM
1 Apr
IAD19:59Washington, D.C. Dulles Intl
20h 21m
2 stops
BHD21:20Belfast City
5 Apr
BHD06:30Belfast City
14h 05m
1 stop
IAD15:35Washington, D.C. Dulles Intl
£564
Find similar

British Airways flights from Washington, D.C. to Belfast

Our best British Airways deals on Washington, D.C. to Belfast flight tickets
British Airways
5 Mar
IAD18:20Washington, D.C. Dulles Intl
11h 00m
1 stop
BHD10:20Belfast City
12 Mar
BHD09:05Belfast City
11h 30m
1 stop
IAD16:35Washington, D.C. Dulles Intl
£484
Find similar
British Airways
16 Mar
IAD22:45Washington, D.C. Dulles Intl
13h 20m
1 stop
BHD16:05Belfast City
22 Mar
BHD20:25Belfast City
24h 10m
1 stop
IAD16:35Washington, D.C. Dulles Intl
£493
Find similar
British Airways
15 Nov
IAD17:05Washington, D.C. Dulles Intl
11h 45m
2 stops
BHD09:50Belfast City
22 Nov
BHD11:35Belfast City
17h 24m
2 stops
IAD23:59Washington, D.C. Dulles Intl
£670
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Washington, D.C. 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, momondo users made 279,928 searches. Data last updated 6 November 2025.
Use the filters below to find and compare flights from Washington, D.C. to Belfast that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Thu 5/3

18:20-10:20

1 stop11h 00m

Belfast City

Thu 12/3

09:05-16:35

1 stop11h 30m

£484

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Mon 16/3

22:45-16:05

1 stop13h 20m

Belfast City

Sun 22/3

20:25-16:35

1 stop24h 10m

£493

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Wed 26/11

18:05-16:50

1 stop17h 45m

Belfast City

Wed 3/12

17:20-16:05

1 stop27h 45m

£500

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Sun 23/11

18:05-21:00

1 stop21h 55m

Belfast City

Mon 1/12

17:20-16:05

1 stop27h 45m

£501

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Mon 16/3

17:23-10:40

2 stops13h 17m

Belfast City

Sun 22/3

10:40-22:46

2 stops16h 06m

£502

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Mon 24/11

15:35-16:50

2 stops20h 15m

Belfast City

Tue 2/12

17:20-16:05

1 stop27h 45m

£504

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Wed 26/11

18:05-16:50

1 stop17h 45m

Belfast City

Wed 3/12

06:30-17:03

2 stops15h 33m

£508

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Wed 26/11

18:05-21:00

1 stop21h 55m

Belfast City

Wed 3/12

06:30-17:03

2 stops15h 33m

£509

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Thu 5/3

12:23-16:50

2 stops23h 27m

Belfast City

Thu 12/3

06:30-17:05

1 stop14h 35m

£511

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Fri 27/3

17:23-10:30

2 stops13h 07m

Belfast City

Sat 4/4

07:05-17:09

2 stops15h 04m

£514

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Washington, D.C. to Belfast

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Washington, D.C. and Belfast?

Cheap Washington, D.C. to Belfast flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to Belfast

Direct flights

None
There are no direct flights from Washington, D.C. to Belfast. There are no popular flight routes from Washington, D.C. to Belfast.
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  • How far is Washington, D.C. to Belfast by plane?

    There are 3373.5 mi between Washington, D.C. and Belfast. Typically, this will take 10h 25m by plane in normal conditions.

  • When did momondo last update prices for flights from Washington, D.C. to Belfast?

    Prices for flights from Washington, D.C. to Belfast are refreshed on a daily basis.

  • How old do you have to be to fly from Washington, D.C. to Belfast?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. to Belfast.

  • What documentation or ID do you need to fly to Belfast?

    The travel and health documents required for your trip to Belfast can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Belfast. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Belfast?

Finding the right flight to Belfast from Washington, D.C. is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Belfast quick and easy, saving you time and money.

Can I find flights from Washington, D.C. to Belfast with flexible booking policies on momondo?

Yes. All flights to Belfast from Washington, D.C. on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Washington, D.C. to Belfast?

Once all potential Washington, D.C. to Belfast flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Washington, D.C. to Belfast right now. Can momondo alert me if prices change?

Price alerts on flights to Belfast from Washington, D.C. are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Find better results for your trip to the United Kingdom

Fly into one of these airports located in Belfast

Airports listed have a maximum distance of 12.2 mi from Belfast
Belfast Intl Airport
Belfast City Airport