What is the cheapest airline that flies from Washington, D.C. to Belfast?

British Airways is the most popular carrier operating from Washington, D.C. to Belfast

How long does it take to fly to Belfast?

Flight times from Washington, D.C. to Belfast vary, but if you’re flying out of Washington, D.C. and flying into Belfast Intl Airport (one of the most popular routes), then the duration is 12h 25m on average. Another popular route from Washington, D.C. to Belfast is flying from Baltimore to Belfast Intl Airport, which will take roughly 16h 20m. Keep in mind that layovers or delays could extend your travel time.

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.

£199 Cheap Flights from Washington, D.C. to Belfast in 2025

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Find the cheapest flights from Washington, D.C. to Belfast

Round-trip

One-way

Cheap return flights

18:50 - 23:10BWI-BFS

23h 20m2 stops

06:45 - 17:40BFS-BWI

15h 55m2 stops

£408

Find Deal

Tue, 16 Sep - Mon, 22 Sep

18:50 - 23:35BWI-BFS

23h 45m2 stops

06:45 - 17:40BFS-BWI

15h 55m2 stops

£424

Find Deal

Thu, 25 Sep - Mon, 6 Oct

19:25 - 13:00IAD-BHD

12h 35m1 stop

06:50 - 20:20BHD-IAD

18h 30m1 stop

£472British Airways

Find Deal

Tue, 7 Oct - Sun, 12 Oct

06:45 - 08:45DCA-BHD

21h 00m2 stops

06:40 - 17:56BHD-DCA

16h 16m2 stops

£481British Airways

Find Deal

Thu, 25 Sep - Mon, 6 Oct

17:25 - 21:15IAD-BHD

22h 50m1 stop

06:30 - 15:35BHD-IAD

14h 05m1 stop

£532KLM

Find Deal

Thu, 25 Sep - Mon, 6 Oct

06:10 - 16:50IAD-BHD

29h 40m2 stops

06:30 - 16:05BHD-IAD

14h 35m1 stop

£536Virgin Atlantic

Find Deal

Wed, 12 Nov - Sun, 16 Nov

20:23 - 21:15IAD-BHD

19h 52m2 stops

06:30 - 15:35BHD-IAD

14h 05m1 stop

£537Delta

Find Deal

Sun, 17 Aug - Sun, 24 Aug

13:00 - 16:55IAD-BHD

22h 55m2 stops

06:30 - 15:35BHD-IAD

14h 05m1 stop

£537Delta

Find Deal

Tue, 7 Oct - Sun, 12 Oct

17:25 - 21:15IAD-BHD

22h 50m1 stop

06:30 - 19:18BHD-IAD

17h 48m2 stops

£540KLM

Find Deal

Thu, 25 Sep - Mon, 6 Oct

06:10 - 16:50IAD-BHD

29h 40m2 stops

06:30 - 09:58BHD-IAD

32h 28m2 stops

£543Virgin Atlantic

Find Deal

Wed, 12 Nov - Sun, 16 Nov

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

Our best British Airways deals on Washington, D.C. to Belfast flight tickets

British Airways

7 Oct

IAD19:25Washington, D.C. Dulles Intl

12h 35m

1 stop

BHD13:00Belfast City

12 Oct

BHD06:50Belfast City

18h 30m

1 stop

IAD20:20Washington, D.C. Dulles Intl

£472

Find similar

British Airways

25 Sept

DCA06:45Washington, D.C. Reagan-National

21h 00m

2 stops

BHD08:45Belfast City

6 Oct

BHD06:40Belfast City

16h 16m

2 stops

DCA17:56Washington, D.C. Reagan-National

£481

Find similar

British Airways

17 Aug

IAD20:19Washington, D.C. Dulles Intl

17h 26m

2 stops

BHD18:45Belfast City

24 Aug

BHD06:50Belfast City

17h 59m

2 stops

IAD19:49Washington, D.C. Dulles Intl

£482

Find similar

Delta flights from Washington, D.C. to Belfast

Our best Delta deals on Washington, D.C. to Belfast flight tickets

Delta

17 Aug

IAD20:23Washington, D.C. Dulles Intl

19h 52m

2 stops

BHD21:15Belfast City

24 Aug

BHD06:30Belfast City

14h 05m

1 stop

IAD15:35Washington, D.C. Dulles Intl

£536

Find similar

Delta

7 Oct

IAD13:00Washington, D.C. Dulles Intl

22h 55m

2 stops

BHD16:55Belfast City

12 Oct

BHD06:30Belfast City

14h 05m

1 stop

IAD15:35Washington, D.C. Dulles Intl

£537

Find similar

Delta

7 Oct

IAD17:52Washington, D.C. Dulles Intl

18h 03m

2 stops

BHD16:55Belfast City

12 Oct

BHD06:30Belfast City

17h 48m

2 stops

IAD19:18Washington, D.C. Dulles Intl

£620

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BaltimoreBelfast

BWI - BFS

BWIBFS

Baltimore/Washington

Tue 16/9

18:50-23:10

2 stops23h 20m

Belfast Intl

Mon 22/9

06:45-17:40

2 stops15h 55m

£408

BaltimoreBelfast

BWI - BFS

BWIBFS

Baltimore/Washington

Thu 25/9

18:50-23:35

2 stops23h 45m

Belfast Intl

Mon 6/10

06:45-17:40

2 stops15h 55m

£424

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Tue 7/10

19:25-13:00

1 stop12h 35m

Belfast City

Sun 12/10

06:50-20:20

1 stop18h 30m

£472

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Thu 25/9

06:45-08:45

2 stops21h 00m

Belfast City

Mon 6/10

06:40-17:56

2 stops16h 16m

£481

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Thu 25/9

17:25-21:15

1 stop22h 50m

Belfast City

Mon 6/10

06:30-15:35

1 stop14h 05m

£532

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Wed 12/11

06:10-16:50

2 stops29h 40m

Belfast City

Sun 16/11

06:30-16:05

1 stop14h 35m

£536

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Sun 17/8

20:23-21:15

2 stops19h 52m

Belfast City

Sun 24/8

06:30-15:35

1 stop14h 05m

£536

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Tue 7/10

13:00-16:55

2 stops22h 55m

Belfast City

Sun 12/10

06:30-15:35

1 stop14h 05m

£537

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Thu 25/9

17:25-21:15

1 stop22h 50m

Belfast City

Mon 6/10

06:30-19:18

2 stops17h 48m

£540

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Wed 12/11

06:10-16:50

2 stops29h 40m

Belfast City

Sun 16/11

06:30-09:58

2 stops32h 28m

£543

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Other information

What is the cheapest month to fly to Belfast?

The cheapest month to fly to Belfast from Washington, D.C. is in February. Flight prices, which tend to average around £467, are often lower during this time because this is during the off-season. If you aren’t able to travel to Belfast during the month of February, then flying in August is also cheap. Prices for this month can be found on momondo for an average of £467.

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

Best price found	£199
Fastest flight time	10h 00m
Direct flights	None
Airports in Belfast	2 airports

The best one-way flight to Belfast from Washington, D.C. in the past 72 hours is £199. The best return flight deal from Washington, D.C. to Belfast found on momondo in the last 72 hours is £408.

The fastest flight from Washington, D.C. to Belfast takes 10h 00m

There are no direct flights from Washington, D.C. to Belfast. Popular non-direct routes for this connection are Washington, D.C. Dulles Intl Airport - Belfast City Airport, Baltimore/Washington Airport - Belfast Intl Airport and Washington, D.C. Dulles Intl Airport - Belfast Intl Airport.

There are 2 airports near Belfast: Belfast Intl (BFS), Belfast City (BHD)

Search flight deals

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 00m 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.