When did momondo last update prices for flights from Washington to Belfast?

Prices for flights from Washington to Belfast refresh daily.

How old do you have to be to fly from Washington to Belfast?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington 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.

£300 Cheap Flights from Washington to Belfast in 2025

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Find the cheapest flights from Washington to Belfast

Round-trip

One-way

Last minute

Cheap return flights

18:45 - 14:15PDX-BHD

12h 30m1 stop

08:45 - 15:55BHD-PDX

15h 10m1 stop

£501British Airways

Find Deal

Fri, 31 Oct - Fri, 7 Nov

08:45 - 10:30PDX-BHD

18h 45m2 stops

06:45 - 15:55BHD-PDX

17h 10m1 stop

£511British Airways

Find Deal

Fri, 31 Oct - Fri, 7 Nov

07:40 - 10:30PDX-BHD

19h 50m2 stops

08:45 - 20:18BHD-PDX

19h 33m2 stops

£516American Airlines

Find Deal

Fri, 31 Oct - Fri, 7 Nov

10:11 - 11:55SEA-BHD

17h 44m2 stops

13:40 - 11:35BHD-SEA

29h 55m1 stop

£572American Airlines

Find Deal

Wed, 3 Sep - Tue, 9 Sep

17:40 - 21:15SEA-BHD

19h 35m1 stop

17:25 - 16:05BHD-SEA

30h 40m1 stop

£605KLM

Find Deal

Wed, 3 Sep - Mon, 8 Sep

17:40 - 21:15SEA-BHD

19h 35m1 stop

06:30 - 16:05BHD-SEA

17h 35m1 stop

£633KLM

Find Deal

Tue, 9 Sep - Tue, 16 Sep

14:10 - 21:15SEA-BHD

23h 05m1 stop

17:25 - 11:45BHD-SEA

26h 20m1 stop

£642Delta

Find Deal

Wed, 3 Sep - Sun, 7 Sep

07:20 - 21:00SEA-BHD

29h 40m2 stops

06:30 - 11:50BHD-SEA

13h 20m1 stop

£645Virgin Atlantic

Find Deal

Wed, 3 Dec - Sun, 7 Dec

11:15 - 16:50SEA-BHD

21h 35m2 stops

06:30 - 11:50BHD-SEA

13h 20m1 stop

£646Delta

Find Deal

Wed, 3 Dec - Sun, 7 Dec

07:20 - 21:00SEA-BHD

29h 40m2 stops

17:20 - 14:45BHD-SEA

29h 25m2 stops

£653Virgin Atlantic

Find Deal

Wed, 3 Dec - Sun, 7 Dec

Virgin Atlantic flights from State of Washington to Belfast

Our best Virgin Atlantic deals on State of Washington to Belfast flight tickets

Virgin Atlantic

3 Dec

SEA07:20Seattle/Tacoma Intl

29h 40m

2 stops

BHD21:00Belfast City

7 Dec

BHD06:30Belfast City

13h 20m

1 stop

SEA11:50Seattle/Tacoma Intl

£645

Find similar

Virgin Atlantic

3 Dec

SEA07:20Seattle/Tacoma Intl

29h 40m

2 stops

BHD21:00Belfast City

7 Dec

BHD17:20Belfast City

29h 25m

2 stops

SEA14:45Seattle/Tacoma Intl

£653

Find similar

British Airways flights from State of Washington to Belfast

Our best British Airways deals on State of Washington to Belfast flight tickets

British Airways

31 Oct

PDX18:45Portland

12h 30m

1 stop

BHD14:15Belfast City

7 Nov

BHD08:45Belfast City

15h 10m

1 stop

PDX15:55Portland

£501

Find similar

British Airways

31 Oct

PDX08:45Portland

18h 45m

2 stops

BHD10:30Belfast City

7 Nov

BHD06:45Belfast City

17h 10m

1 stop

PDX15:55Portland

£511

Find similar

British Airways

22 Sept

SEA20:20Seattle/Tacoma Intl

13h 10m

1 stop

BHD17:30Belfast City

6 Oct

BHD19:30Belfast City

23h 40m

1 stop

SEA11:10Seattle/Tacoma Intl

£537

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Fri 31/10

18:45-14:15

1 stop12h 30m

Belfast City

Fri 7/11

08:45-15:55

1 stop15h 10m

£501

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Fri 31/10

08:45-10:30

2 stops18h 45m

Belfast City

Fri 7/11

06:45-15:55

1 stop17h 10m

£511

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Fri 31/10

07:40-10:30

2 stops19h 50m

Belfast City

Fri 7/11

08:45-20:18

2 stops19h 33m

£516

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

Wed 3/9

10:11-11:55

2 stops17h 44m

Belfast City

Tue 9/9

13:40-11:35

1 stop29h 55m

£572

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

Wed 3/9

17:40-21:15

1 stop19h 35m

Belfast City

Mon 8/9

17:25-16:05

1 stop30h 40m

£605

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

Tue 9/9

17:40-21:15

1 stop19h 35m

Belfast City

Tue 16/9

06:30-16:05

1 stop17h 35m

£633

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

Wed 3/9

14:10-21:15

1 stop23h 05m

Belfast City

Sun 7/9

17:25-11:45

1 stop26h 20m

£642

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

Wed 3/12

07:20-21:00

2 stops29h 40m

Belfast City

Sun 7/12

06:30-11:50

1 stop13h 20m

£645

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

Wed 3/12

11:15-16:50

2 stops21h 35m

Belfast City

Sun 7/12

06:30-11:50

1 stop13h 20m

£646

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

Wed 3/12

07:20-21:00

2 stops29h 40m

Belfast City

Sun 7/12

17:20-14:45

2 stops29h 25m

£653

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 State of Washington 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 cheapest airline that flies from Washington to Belfast?

British Airways, American Airlines, and Delta are the most popular carriers operating from Washington to Belfast

When did momondo last update prices for flights from Washington to Belfast?
Prices for flights from Washington to Belfast refresh daily.
How old do you have to be to fly from Washington to Belfast?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington 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 to Belfast?

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

Can I find flights from Washington to Belfast with flexible booking policies on momondo?

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

How can momondo help me find flights from Washington to Belfast?

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

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

Yes momondo offers price alerts on flights to Belfast from Washington. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.