When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Belfast City Airport?

Prices for flights from Seattle/Tacoma Intl Airport to Belfast City Airport are refreshed on a daily basis.

How old do you have to be to fly from Seattle/Tacoma Intl Airport to Belfast City Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Belfast City Airport.

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

The necessary travel and health documents for your Belfast City Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

£199 Cheap Flights from Seattle to Belfast City Airport in 2026

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Find the cheapest flights from Seattle to Belfast

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

20:20 - 18:45

SEA

BHD

14h 25m

1 stop

19:35 - 11:35

BHD

SEA

24h 00m

1 stop

£643British Airways

월, 11 5월 - 월, 18 5월

20:20 - 17:35

SEA

BHD

13h 15m

1 stop

11:35 - 18:25

BHD

SEA

14h 50m

1 stop

£643British Airways

화, 14 4월 - 수, 22 4월

20:20 - 17:40

SEA

BHD

13h 20m

1 stop

18:20 - 11:35

BHD

SEA

25h 15m

1 stop

£655British Airways

일, 10 5월 - 화, 19 5월

15:17 - 15:20

SEA

BHD

16h 03m

2 stops

10:05 - 18:25

BHD

SEA

16h 20m

1 stop

£658American Airlines

화, 14 4월 - 수, 22 4월

13:30 - 17:35

SEA

BHD

20h 05m

1 stop

16:25 - 11:35

BHD

SEA

27h 10m

1 stop

£664British Airways

화, 12 5월 - 화, 19 5월

15:17 - 15:20

SEA

BHD

16h 03m

2 stops

11:35 - 22:38

BHD

SEA

19h 03m

2 stops

£665American Airlines

화, 14 4월 - 수, 22 4월

20:20 - 18:45

SEA

BHD

14h 25m

1 stop

20:35 - 11:35

BHD

SEA

23h 00m

1 stop

£668British Airways

일, 10 5월 - 수, 20 5월

07:25 - 16:55

SEA

BHD

25h 30m

2 stops

17:30 - 11:42

BHD

SEA

26h 12m

1 stop

£673Delta

일, 10 5월 - 수, 20 5월

13:30 - 18:55

SEA

BHD

21h 25m

1 stop

20:35 - 11:35

BHD

SEA

23h 00m

1 stop

£677British Airways

화, 12 5월 - 수, 20 5월

20:20 - 20:35

SEA

BHD

16h 15m

1 stop

20:10 - 11:35

BHD

SEA

23h 25m

1 stop

£679British Airways

일, 12 4월 - 일, 19 4월

British Airways flights from Seattle to Belfast City Airport

Our best British Airways deals on Seattle to Belfast City Airport flight tickets

British Airways

14 Apr

SEA20:20Seattle/Tacoma Intl

13h 15m

1 stop

BHD17:35Belfast City

22 Apr

BHD11:35Belfast City

14h 50m

1 stop

SEA18:25Seattle/Tacoma Intl

£643

British Airways

12 Apr

SEA20:20Seattle/Tacoma Intl

16h 15m

1 stop

BHD20:35Belfast City

19 Apr

BHD20:10Belfast City

23h 25m

1 stop

SEA11:35Seattle/Tacoma Intl

£679

British Airways

16 Apr

SEA13:30Seattle/Tacoma Intl

21h 15m

1 stop

BHD18:45Belfast City

18 May

BHD19:35Belfast City

24h 00m

1 stop

SEA11:35Seattle/Tacoma Intl

£687

American Airlines flights from Seattle to Belfast City Airport

Our best American Airlines deals on Seattle to Belfast City Airport flight tickets

American Airlines

14 Apr

SEA15:17Seattle/Tacoma Intl

16h 03m

2 stops

BHD15:20Belfast City

22 Apr

BHD10:05Belfast City

16h 20m

1 stop

SEA18:25Seattle/Tacoma Intl

£658

American Airlines

14 Apr

SEA15:17Seattle/Tacoma Intl

16h 03m

2 stops

BHD15:20Belfast City

22 Apr

BHD11:35Belfast City

19h 03m

2 stops

SEA22:38Seattle/Tacoma Intl

£665

American Airlines

17 Apr

SEA20:20Seattle/Tacoma Intl

13h 50m

1 stop

BHD18:10Belfast City

3 May

BHD11:00Belfast City

19h 38m

2 stops

SEA22:38Seattle/Tacoma Intl

£738

momondo Fare Finder

Use the filters below to find and compare flights from Seattle to Belfast City Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

월 11/5

20:20-18:45

1 stop14h 25m

Belfast City

월 18/5

19:35-11:35

1 stop24h 00m

£643

Fastest return journey

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

화 14/4

20:20-17:35

1 stop13h 15m

Belfast City

수 22/4

11:35-18:25

1 stop14h 50m

£643

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

일 10/5

20:20-17:40

1 stop13h 20m

Belfast City

화 19/5

18:20-11:35

1 stop25h 15m

£655

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

화 14/4

15:17-15:20

2 stops16h 03m

Belfast City

수 22/4

10:05-18:25

1 stop16h 20m

£658

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

화 12/5

13:30-17:35

1 stop20h 05m

Belfast City

화 19/5

16:25-11:35

1 stop27h 10m

£664

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

화 14/4

15:17-15:20

2 stops16h 03m

Belfast City

수 22/4

11:35-22:38

2 stops19h 03m

£665

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

일 10/5

20:20-18:45

1 stop14h 25m

Belfast City

수 20/5

20:35-11:35

1 stop23h 00m

£668

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

일 10/5

07:25-16:55

2 stops25h 30m

Belfast City

수 20/5

17:30-11:42

1 stop26h 12m

£673

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

화 12/5

13:30-18:55

1 stop21h 25m

Belfast City

수 20/5

20:35-11:35

1 stop23h 00m

£677

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

일 12/4

20:20-20:35

1 stop16h 15m

Belfast City

일 19/4

20:10-11:35

1 stop23h 25m

£679

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 Seattle 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 Seattle/Tacoma Intl to Belfast City?

British Airways is the most popular carrier operating from Seattle/Tacoma Intl to Belfast City

When to book flights from Seattle to Belfast City Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Belfast City Airport according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap Seattle to Belfast City Airport (SEA to BHD) flight deals and tips

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

Fastest flight time	16h 15m
Direct flights	None

The fastest flight from Seattle to Belfast City Airport takes 16h 15m

There are no direct flights from Seattle to Belfast City Airport. There are no popular flight routes from Seattle to Belfast City Airport.

Search flight deals

How far is Seattle/Tacoma Intl to Belfast City by plane?
A flight from Seattle/Tacoma Intl to Belfast City will travel around 4463.4 mi. By plane, this route typically takes 16h 15m.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Belfast City Airport?
Prices for flights from Seattle/Tacoma Intl Airport to Belfast City Airport are refreshed on a daily basis.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Belfast City Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Belfast City Airport.
What documentation or ID do you need to fly to Belfast City Airport?
The necessary travel and health documents for your Belfast City Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Newcastle

Bangor

Carrickfergus

Why use momondo?

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

It is quick and easy to find Seattle to Belfast flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Belfast that suits you.

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

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

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Belfast from Seattle.

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

Yes momondo offers price alerts on flights to Belfast from Seattle. 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.