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Cheap flights from Washington to Belfast from £303

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 to Belfast departing on 7/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags
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Cheap return flights

Logo
19:00 - 20:25SEA-BHD
17h 25m2 stops
Logo
07:25 - 18:00BHD-SEA
17h 35m2 stops
£478
Find Deal
dim., 19 oct. - jeu., 30 oct.
British Airways Logo
18:45 - 16:35PDX-BHD
14h 50m1 stop
British Airways Logo
20:00 - 15:55BHD-PDX
27h 55m1 stop
£489British Airways
Find Deal
mer., 29 oct. - jeu., 6 nov.
British Airways Logo
10:29 - 14:15PDX-BHD
20h 46m2 stops
British Airways Logo
20:00 - 15:55BHD-PDX
27h 55m1 stop
£492British Airways
Find Deal
mer., 29 oct. - jeu., 6 nov.
British Airways Logo
10:29 - 14:15PDX-BHD
20h 46m2 stops
British Airways Logo
06:35 - 21:20BHD-PDX
22h 45m2 stops
£501British Airways
Find Deal
mer., 29 oct. - jeu., 6 nov.
Logo
19:00 - 20:25SEA-BHD
17h 25m2 stops
Logo
07:00 - 20:40BHD-SEA
21h 40m2 stops
£517
Find Deal
sam., 4 oct. - sam., 11 oct.
British Airways Logo
20:20 - 17:40SEA-BHD
13h 20m1 stop
British Airways Logo
09:05 - 17:55BHD-SEA
15h 50m1 stop
£540British Airways
Find Deal
dim., 19 oct. - jeu., 30 oct.
American Airlines Logo
01:23 - 10:15SEA-BHD
24h 52m2 stops
American Airlines Logo
06:30 - 18:20BHD-SEA
19h 50m2 stops
£737American Airlines
Find Deal
mar., 2 déc. - dim., 7 déc.
American Airlines Logo
01:23 - 10:15SEA-BHD
24h 52m2 stops
American Airlines Logo
09:10 - 18:20BHD-SEA
17h 10m2 stops
£738American Airlines
Find Deal
mar., 2 déc. - dim., 7 déc.
KLM Logo
11:15 - 16:50SEA-BHD
21h 35m2 stops
KLM Logo
06:30 - 11:50BHD-SEA
13h 20m1 stop
£745KLM
Find Deal
mer., 3 déc. - dim., 7 déc.
KLM Logo
11:15 - 16:50SEA-BHD
21h 35m2 stops
KLM Logo
06:30 - 11:50BHD-SEA
13h 20m1 stop
£746KLM
Find Deal
mer., 3 déc. - dim., 7 déc.

British Airways flights from State of Washington to Belfast City Airport

Our best British Airways deals on State of Washington to Belfast City Airport flight tickets
British Airways
29 Oct
PDX18:45Portland
14h 50m
1 stop
BHD16:35Belfast City
6 Nov
BHD20:00Belfast City
27h 55m
1 stop
PDX15:55Portland
£488
Find similar
British Airways
29 Oct
PDX10:29Portland
20h 46m
2 stops
BHD14:15Belfast City
6 Nov
BHD20:00Belfast City
27h 55m
1 stop
PDX15:55Portland
£492
Find similar
British Airways
29 Oct
PDX10:29Portland
20h 46m
2 stops
BHD14:15Belfast City
6 Nov
BHD06:35Belfast City
22h 45m
2 stops
PDX21:20Portland
£501
Find similar

American Airlines flights from State of Washington to Belfast City Airport

Our best American Airlines deals on State of Washington to Belfast City Airport flight tickets
American Airlines
2 Dec
SEA01:23Seattle/Tacoma Intl
24h 52m
2 stops
BHD10:15Belfast City
7 Dec
BHD06:30Belfast City
19h 50m
2 stops
SEA18:20Seattle/Tacoma Intl
£737
Find similar
American Airlines
2 Dec
SEA01:23Seattle/Tacoma Intl
24h 52m
2 stops
BHD10:15Belfast City
7 Dec
BHD09:10Belfast City
17h 10m
2 stops
SEA18:20Seattle/Tacoma Intl
£738
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from State of Washington to Belfast City Airport 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 7 août 2025.
Use the filters below to find and compare flights from Washington to Belfast City Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

dim. 19/10

19:00-20:25

2 stops17h 25m

Belfast City

jeu. 30/10

07:25-18:00

2 stops17h 35m

£478

PortlandBelfast

PDX - BHD

PDXBHD

Portland

mer. 29/10

18:45-16:35

1 stop14h 50m

Belfast City

jeu. 6/11

20:00-15:55

1 stop27h 55m

£488

PortlandBelfast

PDX - BHD

PDXBHD

Portland

mer. 29/10

10:29-14:15

2 stops20h 46m

Belfast City

jeu. 6/11

20:00-15:55

1 stop27h 55m

£492

PortlandBelfast

PDX - BHD

PDXBHD

Portland

mer. 29/10

10:29-14:15

2 stops20h 46m

Belfast City

jeu. 6/11

06:35-21:20

2 stops22h 45m

£501

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

sam. 4/10

19:00-20:25

2 stops17h 25m

Belfast City

sam. 11/10

07:00-20:40

2 stops21h 40m

£517

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

dim. 19/10

20:20-17:40

1 stop13h 20m

Belfast City

jeu. 30/10

09:05-17:55

1 stop15h 50m

£540

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

mar. 2/12

01:23-10:15

2 stops24h 52m

Belfast City

dim. 7/12

06:30-18:20

2 stops19h 50m

£737

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

mar. 2/12

01:23-10:15

2 stops24h 52m

Belfast City

dim. 7/12

09:10-18:20

2 stops17h 10m

£738

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

mer. 3/12

11:15-16:50

2 stops21h 35m

Belfast City

dim. 7/12

06:30-11:50

1 stop13h 20m

£745

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

mer. 3/12

11:15-16:50

2 stops21h 35m

Belfast City

dim. 7/12

06:30-11:50

1 stop13h 20m

£746

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 State of Washington to Belfast City Airport

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 City?

British Airways is the most popular carrier operating from Washington to Belfast City

Cheap State of Washington to Belfast City Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to Belfast City Airport

Best price found

£303

Fastest flight time

12h 55m

Direct flights

None
The best one-way flight to Belfast City Airport from State of Washington in the past 72 hours is £303. The best return flight deal from State of Washington to Belfast City Airport found on momondo in the last 72 hours is £478.
The fastest flight from State of Washington to Belfast City Airport takes 12h 55m
There are no direct flights from State of Washington to Belfast City Airport. Popular non-direct routes for this connection are Portland Airport - Belfast City Airport and Seattle/Tacoma Intl Airport - Belfast City Airport.
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  • When did momondo last update prices for flights from Washington to Belfast City Airport?

    Prices for flights from Washington to Belfast City Airport refresh daily.

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

    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 City Airport.

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

    The travel and health documents required for your trip to Belfast City Airport 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 City Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Travelling to a place near Belfast?

Book flights to Belfast if you plan to visit one of these locations
Newcastle
Bangor
Carrickfergus

Why use momondo?

Why should I use momondo to find a flight deal from Washington to Belfast?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Belfast from Washington.

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

All flight searches from Washington to Belfast on momondo can be filtered to show those which offer flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Washington to Belfast.

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

If you are simply researching potential flights to Belfast, momondo offers a useful price alert feature which will track prices for flights to Belfast from Washington and alert you when they change.

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