Cheap flights from Belfast to Seattle-Tacoma International

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

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

Flights from Belfast to Seattle-Tacoma International 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-Tacoma International.

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

Travellers have found it’s best to book a flight 52 days in advance to save up to 51% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 52 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Belfast to Seattle-Tacoma International 1-2 weeks in advance for as low as £448, or £587 for flights within the next 24 hours.

What is the cheapest month to fly from Belfast to Seattle-Tacoma International?

Our data shows that February tends to be the cheapest month to fly to Seattle-Tacoma International from Belfast. Users have commonly found prices around £396 for the month, but tickets can be as low as £261. Due to multiple factors, prepare for potentially higher prices in July.

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

It’s optimal to fly from Belfast to Seattle-Tacoma International in the morning. By choosing this option you can save up to 19% on the cost of your flight, compared to a flight at midday.

Cheap flights from Belfast to Seattle-Tacoma International in June, July 2021

The best prices found for BHD to SEA flights in June, July
28 Jul - 18 Aug
£534pp
BHD
Belfast City
Multiple airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
BHD
Belfast City
27 Jul - 17 Aug
£570pp
BHD
Belfast City
Aer Lingus
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Aer Lingus
 
1 STOP
BHD
Belfast City
17 Jul - 19 Jul
£645pp
BHD
Belfast City
Multiple airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
BHD
Belfast City

Belfast to Seattle-Tacoma International 2021 flight deals

Cheap flights to Seattle-Tacoma International from Belfast found for this year
28 Jul - 18 Aug
£534pp
BHD
Belfast City
Multiple airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
BHD
Belfast City
7 Oct - 11 Oct
£566pp
BHD
Belfast City
Virgin Atlantic
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Virgin Atlantic
 
1 STOP
BHD
Belfast City
7 Oct - 11 Oct
£568pp
BHD
Belfast City
Delta
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Delta
 
1 STOP
BHD
Belfast City

Related info for your journey

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

Flight FAQs

From Belfast to Seattle-Tacoma International

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.

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 centre.

Can I find flights from Belfast to Seattle-Tacoma International for under £579 on Cheapflights?

Yes, there are multiple flights from Belfast to Seattle-Tacoma International for under £579. The cheapest flight booked recently is on Multiple Airlines for just £534, but on average you can expect to pay £755.

Are there direct flights from Belfast to Seattle-Tacoma International for under £507 on Cheapflights?

There are no direct flights from Belfast to Seattle-Tacoma International, 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-Tacoma International?

Aer Lingus, British Airways, and American Airlines can get you from Belfast to Seattle-Tacoma International in just under 16h 35m. Your travel time can differ by up to 50m. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

Flying on Virgin Atlantic is currently your cheapest option to Seattle-Tacoma International, with prices starting at £567. Additional return tickets that might be worth considering are offered by Delta and Aer Lingus, with the lowest prices starting at £569 and £570, respectively. Virgin Atlantic is 18% cheaper than the average price of flights available within the next 90 days to this destination.

Destination information for Seattle-Tacoma International

Things to know before you go - useful duration and weather info for your trip from Belfast to Seattle-Tacoma International.
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Airports servicing Belfast

Belfast City (BHD)

Airports servicing Seattle

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