Cheap flights from Belfast to Seattle

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

All the information you need to plan the best BHD to SEA flight in 2021: compare Belfast to Seattle flight prices with the expected peak season, weather and rainfall in Seattle.
What is the cheapest day to fly return from Belfast to Seattle?

Flights from Belfast to Seattle are generally found to be more expensive on Friday. This shouldn't discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Seattle.

How far in advance should I book a flight from Belfast to Seattle?

To save up to 51% on this flight, we recommend booking at least 52 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Belfast to Seattle from £450 1-2 weeks out and tickets from £590 for flights departing within the next 72 hours.

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

February can be a great time to fly to Seattle from Belfast with a flight ticket averaging about £398. Cheapflights users have found deals in the month of February for as cheap as £262. The most expensive prices can be found in the month of July.

When is the cheapest time to fly from Belfast to Seattle (BF1 - SEA)?

A simple way to save on the total cost of your ticket is to fly from Belfast to Seattle in the morning. If you’re flexible enough to do this you can expect to save up to 19% on your trip compared to booking a flight at midday.

Cheap flights from Belfast to Seattle in April, May 2021

The best prices found for BHD to SEA flights in April, May
16 Apr - 23 Apr
£870pp
BHD
Belfast City
Multiple airlines
     
3 STOPS
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Multiple Airlines
     
3 STOPS
BHD
Belfast City
16 Apr - 23 Apr
£930pp
BFS
Belfast Intl
Multiple airlines
     
3 STOPS
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Multiple Airlines
     
3 STOPS
BFS
Belfast Intl
16 Apr - 23 Apr
£958pp
BHD
Belfast City
Multiple airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Multiple Airlines
 
1 STOP
BHD
Belfast City

Belfast to Seattle 2021 flight deals

Cheap flights to Seattle from Belfast found for this year
1 Dec - 5 Dec
£375pp
BHD
Belfast City
Virgin Atlantic
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Virgin Atlantic
 
1 STOP
BHD
Belfast City
18 Jun - 22 Jun
£402pp
BHD
Belfast City
Virgin Atlantic
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Virgin Atlantic
 
1 STOP
BHD
Belfast City
1 Dec - 5 Dec
£556pp
BHD
Belfast City
Virgin Atlantic
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Virgin Atlantic
 
1 STOP
BHD
Belfast City

One-way flights to Seattle from Belfast

The cheapest one-way flights from Belfast to Seattle
13:15 - 07:20
KLM
1 stop
26h 05m
BHD - SEA
KLM
07:30 - 08:30
Multiple Airlines
2 stops
33h 00m
BFS - SEA
Multiple Airlines
£1,661
FlyFar
10:50 - 15:23
Multiple Airlines
3 stops
36h 33m
BFS - SEA
Multiple Airlines
£308
Kiwi.com

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Belfast</span> to <span class="emphasized">Seattle</span> flights.

Flight FAQs

From Belfast to Seattle

Are flight prices decreasing from Belfast to Seattle due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Belfast and Seattle for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

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

United Airlines and British Airways 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 £437 on Cheapflights?

Yes, there are multiple flights from Belfast to Seattle for under £437. The cheapest flight booked recently is on Virgin Atlantic for just £402, but on average you can expect to pay £600.

Are there direct flights from Belfast to Seattle for under £437 on Cheapflights?

There are no direct flights from Belfast to Seattle, but Cheapflights can provide you with all the information you need to find the fastest route with the fewest stops.

Is Belfast weather warmer or cooler than Seattle?

We forecast the temperature to be around the 25 °Cs in July, on average. The temperature in Seattle is generally hotter than in Belfast. Book flights in a timely manner in correlation to your departure date.

How long does is the flight from Belfast to Seattle?

For as low as £668, Virgin Atlantic can have you in Seattle from Belfast in 26h 06m.

What are the cheapest airlines to flying from Belfast to Seattle return?

Currently priced at £402, Virgin Atlantic will fly you from Belfast to Seattle and back. In addition to Virgin Atlantic, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Delta for as low as £754. Virgin Atlantic is priced at 42% lower than the current average price of a flight leaving 3 months from now.

What are the cheapest airlines to fly from Belfast to Seattle one-way?

For one-way options, check prices for KLM. According to our data, you can fly for as low as £248.

Destination information for Seattle

Things to know before you go - useful duration and weather info for your trip from Belfast to Seattle.
Today's exchange rate
£1 = $1.38
Average temperature for April in Seattle
16.0 °C
Avg rainfall for April in Seattle
75.0 mm

Airports servicing Belfast

Belfast City (BHD)

Airports servicing Seattle

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