Cheap flights from Belfast to Seattle

Know your dates, get live prices in seconds:

From
To
Depart
Return
Any month
Compare vs Cheapflights |
From
To
Leaving on
Depart
Time
Anytime
From
To
Leaving on
Depart
Time
Anytime
From
To
Leaving on
Depart
Time
Anytime
From
To
Leaving on
Depart
Time
Anytime
From
To
Leaving on
Depart
Time
Anytime
From
To
Leaving on
Depart
Time
Anytime

We work with more than 300 partners to bring you better travel deals

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

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 Saturday. 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 31% on this flight, we recommend booking at least 61 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 £430 1-2 weeks out and tickets from £521 for flights departing within the next 72 hours.

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

October can be a great time to fly to Seattle from Belfast with a flight ticket averaging about £465. Cheapflights users have found deals in the month of October for as cheap as £321. The most expensive prices can be found in the month of July.

When is the cheapest time to fly from Belfast to Seattle (BF1 - 03A)?

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 10% on your trip compared to booking a flight at midday.

Belfast to Seattle 2020 flight deals

Cheap flights to Seattle from Belfast found for this year
4 Nov - 8 Nov
£526pp
BHD
Belfast City
KLM
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
KLM
 
1 STOP
BHD
Belfast City
4 Nov - 8 Nov
£528pp
BHD
Belfast City
KLM
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
KLM
 
1 STOP
BHD
Belfast City
4 Nov - 8 Nov
£529pp
BHD
Belfast City
KLM
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
KLM
 
1 STOP
BHD
Belfast City

Related info for your journey

Useful info, stats and facts about Belfast to Seattle 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.

Can I find flights from Belfast to Seattle for under £600 on Cheapflights?

Yes, there are multiple flights from Belfast to Seattle for under £600. The cheapest flight booked recently is on KLM for just £526, but on average you can expect to pay £1,004.

Are there direct flights from Belfast to Seattle for under £500 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?

Our data indicates that the weather will be 25 °C on average in the month of July. The temperature in Seattle is typically hotter than in Belfast. If you're traveling when the temperature is at its warmest, push to plan early, as flight price and availability will have an impact on your travels. For the best results, search for flights well in advance or after peak season.

How long does is the flight from Belfast to Seattle?

For as low as £438, British Airways can have you in Seattle from Belfast in 17h 15m. Both multi-stop and direct flights can be found to your destination and back.

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

Currently priced at £409, KLM will fly you from Belfast to Seattle and back. In addition to KLM, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and British Airways - these airlines can fly you to your destination from £412 and £438, respectively.

Destination information for Seattle

Things to know before you go. Useful info for your trip from Belfast to Seattle
Today's exchange rate
£1 = $1.29
Average temperature for September in Seattle
23.0 °C
Avg rainfall for September in Seattle
26.0 mm

Airports servicing Belfast

Belfast International (BFS)

Airports servicing Seattle

Seattle King County/Boeing (BFI)
Seattle Lake Union Spb (LKE)
Home North America USA Washington Seattle Cheap flights from Belfast to Seattle