Cheap flights from Belfast to Seattle

BHD — SEA
17 Aug — 24 Aug1
Return
1 adult
Economy
From?
To?
Wed 17/8
Wed 24/8

How to find the cheapest flight from Belfast to Seattle (SEA)

All the information you need to plan the best BF1 to SEA flight in 2022: compare Belfast to Seattle flight prices with the expected peak season, weather and rainfall in Seattle.

BFS - SEA

Price

£589 - £1,077

SEA

Temperature

5 - 19 °C

SEA

Rainfall

18 - 168 mm

Popular inAugustHigh demand for flights, 24% potential price rise
Cheapest inJulyBest time to find cheap flights, 28% potential price drop
Average price£882Average for round-trip flights in August 2022
Round-trip from£482From Belfast to Seattle/Tacoma Intl

What is the cheapest month to fly from Belfast to Seattle?

Our data shows that July tends to be the cheapest month to fly to Seattle from Belfast. Users have commonly found prices around £672 for the month, but tickets can be as low as £482. Due to multiple factors, prepare for potentially higher prices in August.

When is the cheapest time to fly from Belfast to Seattle (BFS - SEA)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Belfast to Seattle as you normally would.

Cheap flights from Belfast to Seattle in August, September 2022

The best prices found for Belfast to SEA flights in August, September
26 Aug - 2 Sep
BHD

Belfast City

SEA

Seattle/Tacoma Intl

2 stops

18h 43m
SEA

Seattle/Tacoma Intl

BHD

Belfast City

1 stop

14h 55m
£1,101

British Airways

Pick Dates

Deal found 10/8/22

26 Aug - 2 Sep
BHD

Belfast City

SEA

Seattle/Tacoma Intl

2 stops

18h 43m
SEA

Seattle/Tacoma Intl

BHD

Belfast City

2 stops

15h 55m
£1,129

British Airways

Pick Dates

Deal found 10/8/22

26 Aug - 2 Sep
BFS

Belfast Intl

SEA

Seattle/Tacoma Intl

3 stops

36h 30m
SEA

Seattle/Tacoma Intl

BFS

Belfast Intl

2 stops

27h 00m
£1,371

Multiple Airlines

Pick Dates

Deal found 10/8/22

Belfast to Seattle 2022 flight deals

Cheap flights to Seattle from Belfast found for this year
26 Aug - 2 Sep
BHD

Belfast City

SEA

Seattle/Tacoma Intl

2 stops

18h 43m
SEA

Seattle/Tacoma Intl

BHD

Belfast City

1 stop

14h 55m
£1,101

British Airways

Pick Dates

Deal found 10/8/22

26 Aug - 2 Sep
BHD

Belfast City

SEA

Seattle/Tacoma Intl

2 stops

18h 43m
SEA

Seattle/Tacoma Intl

BHD

Belfast City

2 stops

15h 55m
£1,129

British Airways

Pick Dates

Deal found 10/8/22

26 Aug - 2 Sep
BFS

Belfast Intl

SEA

Seattle/Tacoma Intl

3 stops

36h 30m
SEA

Seattle/Tacoma Intl

BFS

Belfast Intl

2 stops

27h 00m
£1,371

Multiple Airlines

Pick Dates

Deal found 10/8/22

Cheap British Airways flights from Belfast to Seattle

26 Aug - 2 Sep
BHD

Belfast City

SEA

Seattle/Tacoma Intl

2 stops

18h 43m
SEA

Seattle/Tacoma Intl

BHD

Belfast City

1 stop

14h 55m
£1,101

British Airways

Pick Dates

Deal found 10/8/22

26 Aug - 2 Sep
BHD

Belfast City

SEA

Seattle/Tacoma Intl

2 stops

18h 43m
SEA

Seattle/Tacoma Intl

BHD

Belfast City

2 stops

15h 55m
£1,129

British Airways

Pick Dates

Deal found 10/8/22

26 Aug - 2 Sep
BHD

Belfast City

SEA

Seattle/Tacoma Intl

1 stop

33h 45m
SEA

Seattle/Tacoma Intl

BHD

Belfast City

2 stops

37h 13m
£4,970

British Airways

Pick Dates

Deal found 10/8/22

Related info for your journey

Useful info, stats and facts about Belfast to Seattle flights.

What airport do you fly into for flights to Seattle from Belfast?

Most people fly into Seattle/Tacoma Intl (SEA) if they book a flight to Seattle from Belfast. On average, Seattle/Tacoma Intl has 0 inbound flights from Belfast per day from 2 airlines. Seattle/Tacoma Intl is conveniently located just 11.4 mi from Seattle’s city center.

Which airlines flying from Belfast to Seattle/Tacoma Intl have flexible cancellations due to COVID-19?

British Airways and United Airlines are some of the carriers that may have flexible cancellation policies. You can use our site to filter for other airlines that may also have this kind of flexibility.

Can I find flights from Belfast to Seattle for under £1,100 on Cheapflights?

Yes, there are multiple flights from Belfast to Seattle for under £1,100. The cheapest flight booked recently is on British Airways for just £1,101, but on average you can expect to pay £4,916.

What are the cheapest airlines flying from Belfast to Seattle round-trip?

British Airways, at £1,101, was found to be the cheapest airline from Belfast to Seattle. An alternate airline flying to your destination would be KLM.

What are the cheapest flights from Belfast to Seattle?

Looking for the cheapest flight from Belfast to Seattle? While on average our users pay £634, our data indicates the cheapest price to be £634. The most popular route (Belfast Intl - Seattle/Tacoma Intl), is priced around £1,371.

Top 2 airlines flying from Belfast to Seattle

The chart below displays the airlines Cheapflights users travelling from Belfast to Seattle choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-timeCOVID-19 safety
United AirlinesCheapest£601Average£621FlexibilityNo cancel feeOn-time69%COVID-19 safety
Search United Airlines flights
British AirwaysCheapest£669Average£804FlexibilityNo cancel feeOn-time70%COVID-19 safety
Search British Airways flights