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.

£265 Cheap Flights from Washington to Belfast in 2025/26

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Find the cheapest flights from Washington to Belfast

Round-trip

One-way

Cheap return flights

Enter your travel dates to find the best prices.

17:45 - 14:15PDX-BHD

12h 30m1 stop

11:05 - 23:32BHD-PDX

20h 27m2 stops

£483Multiple Airlines

Find Deal

Mon, 19 Jan - Thu, 29 Jan

17:45 - 18:35PDX-BHD

16h 50m1 stop

11:05 - 23:32BHD-PDX

20h 27m2 stops

£484British Airways

Find Deal

Mon, 19 Jan - Thu, 29 Jan

15:05 - 16:50SEA-BHD

17h 45m1 stop

17:20 - 11:50BHD-SEA

26h 30m1 stop

£485Virgin Atlantic

Find Deal

Wed, 3 Dec - Sun, 7 Dec

11:35 - 21:00PDX-BHD

25h 25m2 stops

06:30 - 11:25BHD-PDX

12h 55m1 stop

£488Delta

Find Deal

Wed, 3 Dec - Wed, 10 Dec

10:05 - 16:50PDX-BHD

22h 45m2 stops

06:30 - 11:25BHD-PDX

12h 55m1 stop

£489KLM

Find Deal

Thu, 4 Dec - Mon, 15 Dec

15:05 - 16:50SEA-BHD

17h 45m1 stop

17:20 - 20:13BHD-SEA

34h 53m2 stops

£493Virgin Atlantic

Find Deal

Wed, 3 Dec - Sun, 7 Dec

11:35 - 21:00PDX-BHD

25h 25m2 stops

06:30 - 15:33BHD-PDX

17h 03m2 stops

£496Delta

Find Deal

Wed, 3 Dec - Wed, 10 Dec

15:05 - 21:00SEA-BHD

21h 55m1 stop

17:20 - 11:50BHD-SEA

26h 30m1 stop

£526KLM

Find Deal

Wed, 3 Dec - Sun, 7 Dec

15:00 - 16:45SEA-BHD

17h 45m2 stops

09:15 - 23:08BHD-SEA

20h 53m2 stops

£609American Airlines

Find Deal

Sat, 7 Mar - Wed, 18 Mar

19:50 - 17:15SEA-BHD

14h 25m1 stop

06:35 - 23:08BHD-SEA

24h 33m2 stops

£751American Airlines

Find Deal

Fri, 27 Mar - Tue, 31 Mar

American Airlines flights from State of Washington to Belfast

Our best American Airlines deals on State of Washington to Belfast flight tickets

American Airlines

7 Mar

SEA15:00Seattle/Tacoma Intl

17h 45m

2 stops

BHD16:45Belfast City

18 Mar

BHD09:15Belfast City

20h 53m

2 stops

SEA23:08Seattle/Tacoma Intl

£609

Find similar

American Airlines

27 Mar

SEA19:50Seattle/Tacoma Intl

14h 25m

1 stop

BHD17:15Belfast City

31 Mar

BHD06:35Belfast City

24h 33m

2 stops

SEA23:08Seattle/Tacoma Intl

£751

Find similar

American Airlines

27 Mar

SEA10:01Seattle/Tacoma Intl

17h 29m

2 stops

BHD10:30Belfast City

31 Mar

BHD06:35Belfast City

24h 33m

2 stops

SEA23:08Seattle/Tacoma Intl

£769

Find similar

KLM flights from State of Washington to Belfast

Our best KLM deals on State of Washington to Belfast flight tickets

KLM

4 Dec

PDX10:05Portland

22h 45m

2 stops

BHD16:50Belfast City

15 Dec

BHD06:30Belfast City

12h 55m

1 stop

PDX11:25Portland

£489

Find similar

KLM

3 Dec

SEA15:05Seattle/Tacoma Intl

21h 55m

1 stop

BHD21:00Belfast City

7 Dec

BHD17:20Belfast City

26h 30m

1 stop

SEA11:50Seattle/Tacoma Intl

£526

Find similar

KLM

3 Dec

SEA15:05Seattle/Tacoma Intl

21h 55m

1 stop

BHD21:00Belfast City

7 Dec

BHD17:20Belfast City

37h 03m

2 stops

SEA22:23Seattle/Tacoma Intl

£533

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Mon 19/1

17:45-14:15

1 stop12h 30m

Belfast City

Thu 29/1

11:05-23:32

2 stops20h 27m

£483

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Mon 19/1

17:45-18:35

1 stop16h 50m

Belfast City

Thu 29/1

11:05-23:32

2 stops20h 27m

£484

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

Wed 3/12

15:05-16:50

1 stop17h 45m

Belfast City

Sun 7/12

17:20-11:50

1 stop26h 30m

£485

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Wed 3/12

11:35-21:00

2 stops25h 25m

Belfast City

Wed 10/12

06:30-11:25

1 stop12h 55m

£488

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Thu 4/12

10:05-16:50

2 stops22h 45m

Belfast City

Mon 15/12

06:30-11:25

1 stop12h 55m

£489

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

Wed 3/12

15:05-16:50

1 stop17h 45m

Belfast City

Sun 7/12

17:20-20:13

2 stops34h 53m

£493

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Wed 3/12

11:35-21:00

2 stops25h 25m

Belfast City

Wed 10/12

06:30-15:33

2 stops17h 03m

£496

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

Wed 3/12

15:05-21:00

1 stop21h 55m

Belfast City

Sun 7/12

17:20-11:50

1 stop26h 30m

£526

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

Sat 7/3

15:00-16:45

2 stops17h 45m

Belfast City

Wed 18/3

09:15-23:08

2 stops20h 53m

£609

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

Fri 27/3

19:50-17:15

1 stop14h 25m

Belfast City

Tue 31/3

06:35-23:08

2 stops24h 33m

£751

Flights are sorted by cheapest return flights first.

Showing 1-10 of 15 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 is the most popular carrier operating from Washington to Belfast

Cheap State of Washington to Belfast flight deals and tips

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

Direct flights	None

There are no direct flights from State of Washington to Belfast. There are no popular flight routes from State of Washington to Belfast.

Search flight deals

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.