Cheap flights from United Kingdom to Seattle-Tacoma International

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How to find the cheapest flight from
United Kingdom to Seattle-Tacoma International (SEA)

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

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 United Kingdom to Seattle-Tacoma International from £444 1-2 weeks out and tickets from £582 for flights departing within the next 72 hours.

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

February can be a great time to fly to Seattle-Tacoma International from United Kingdom with a flight ticket averaging about £392. Cheapflights users have found deals in the month of February for as cheap as £258. The most expensive prices can be found in the month of July.

Cheap flights from United Kingdom to Seattle-Tacoma International in March, April 2021

19 Apr - 25 Apr
£358pp
STN
London Stansted
Multiple airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
STN
London Stansted
26 Apr - 14 May
£379pp
LGW
London Gatwick
Icelandair
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Icelandair
 
1 STOP
LGW
London Gatwick
30 Mar - 15 Apr
£398pp
LHR
London Heathrow
Multiple airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Lufthansa
 
1 STOP
LHR
London Heathrow

United Kingdom to Seattle-Tacoma International 2021 flight deals

19 Apr - 25 Apr
£358pp
STN
London Stansted
Multiple airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
STN
London Stansted
20 Sep - 3 Oct
£376pp
LHR
London Heathrow
Multiple airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Air Canada
   
2 STOPS
LHR
London Heathrow
23 Aug - 6 Sep
£378pp
LHR
London Heathrow
Multiple airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Air Canada
   
2 STOPS
LHR
London Heathrow

Direct flights to Seattle-Tacoma International from United Kingdom

28 Apr - 12 May
£410pp
LHR
London Heathrow
Virgin Atlantic
Direct
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Virgin Atlantic
Direct
LHR
London Heathrow
26 Apr - 14 May
£443pp
LHR
London Heathrow
Virgin Atlantic
Direct
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Virgin Atlantic
Direct
LHR
London Heathrow
26 Apr - 13 May
£449pp
LHR
London Heathrow
British Airways
Direct
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
British Airways
Direct
LHR
London Heathrow

Last-minute flights from United Kingdom to Seattle-Tacoma International

8 Mar - 22 Mar
£492pp
LHR
London Heathrow
Lufthansa
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Lufthansa
 
1 STOP
LHR
London Heathrow
8 Mar - 22 Mar
£507pp
LHR
London Heathrow
Brussels Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Brussels Airlines
 
1 STOP
LHR
London Heathrow
8 Mar - 22 Mar
£540pp
LHR
London Heathrow
Brussels Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Brussels Airlines
   
2 STOPS
LHR
London Heathrow

One-way flights to Seattle-Tacoma International from United Kingdom

10:10 - 05:30
Air Canada
1 stop
27h 20m
LHR - SEA
Air Canada
£288
Seat24
07:30 - 09:10
Virgin Atlantic
Direct
9h 40m
LHR - SEA
Virgin Atlantic
£294
Travel2Be
13:35 - 06:37
Multiple Airlines
3 stops
49h 02m
LHR - SEA
Multiple Airlines
£296
Combigo

Related info for your journey

Flight FAQs

From United Kingdom to Seattle-Tacoma International

Are flight prices decreasing from United Kingdom 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 United Kingdom 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.

What safety measures are being taken by airlines flying from United Kingdom to Seattle/Tacoma Intl to control the spread of COVID-19?

Delta is one of the many airlines that have implemented additional safety measures to control the spread of COVID-19. New policies for travellers booking flights from United Kingdom to Seattle/Tacoma Intl include masks being provided and required on board, daily cleaning and sanitisation, use of HEPA filters, pre-flight testing for antibodies and symptoms, and socially-distanced seating (for a limited time). Keep in mind that policies will vary by airline.

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

British Airways, Virgin Atlantic, and Icelandair 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 United Kingdom to Seattle-Tacoma International for under £359 on Cheapflights?

Yes, there are multiple flights from United Kingdom to Seattle-Tacoma International for under £359. The cheapest flight booked recently is on Multiple Airlines for just £358, but on average you can expect to pay £385.

Are there direct flights from United Kingdom to Seattle-Tacoma International for under £431 on Cheapflights?

Cheapflights has 20 direct flights from United Kingdom to Seattle-Tacoma International under £431. A good price for a direct flight from United Kingdom to Seattle-Tacoma International is less than £469.

Are there last-minute flights available from United Kingdom to Seattle-Tacoma International for under £502?

There are currently 20+ open flights from United Kingdom to Seattle-Tacoma International within the next 7 days for less than £502.

What are the most popular airlines that fly from United Kingdom to Seattle?

When booking a flight from United Kingdom to Seattle, you may want to consider flying on American Airlines, Air Canada or Air France as they are the most popular for this route.

What are the most popular routes from United Kingdom to Seattle?

When deciding which route to take from United Kingdom to Seattle, consider London Heathrow - Seattle/Tacoma Intl, London City - Seattle/Tacoma Intl or London Gatwick - Seattle/Tacoma Intl, as they are the most popular.

What are the cheapest flights from United Kingdom to Seattle?

Looking at all options, your cheapest flight can be booked for £262. While the most popular route (London Heathrow - Seattle/Tacoma Intl) can be booked for £376 on average our data indicates £994 when flying from United Kingdom to Seattle

How long does is the flight from United Kingdom to Seattle-Tacoma International?

For as low as £393, Air Canada can have you in Seattle-Tacoma International from United Kingdom in 11h 45m. Both multi-stop and direct flights can be found to your destination and back.

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

According to our current data, Icelandair (£379), Aer Lingus (£390), and Air Canada (£391) offers the cheapest pricing from United Kingdom to Seattle-Tacoma International.

What are the cheapest airlines to fly from United Kingdom to Seattle-Tacoma International one-way?

To fly one-way, consider booking your trip with Virgin Atlantic, which is currently one of the cheapest options available, starting at £280. Air Canada flights start at £284 while deals on Lufthansa start at £289 one-way.

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Airports servicing Seattle

Top 10 airlines flying from United Kingdom to Seattle-Tacoma International

Airline Cheapest Average Flexibility On-time COVID-19 safety
Austrian Airlines
£311 £439 No cancel fee 78%
Search Austrian Airlines flights
Norwegian
£426 £582 No cancel fee 74%
Search Norwegian flights
Iberia
£402 £690 No cancel fee 77%
Search Iberia flights
Norwegian Air UK
£386 £707 No cancel fee N/A
Search Norwegian Air UK flights
Thomas Cook Airlines
£456 £743 No cancel fee N/A

We couldn't confirm the COVID-19 safety measures taken by Thomas Cook Airlines. Please check directly on their website for additional information.

Search Thomas Cook Airlines flights
Condor
£516 £747 No cancel fee 76%
Search Condor flights
Delta
£396 £762 No cancel fee N/A
Search Delta flights
SWISS
£510 £767 No cancel fee 79%
Search SWISS flights
Air France
£415 £811 No cancel fee 77%
Search Air France flights
Finnair
£454 £820 No cancel fee 76%
Search Finnair flights
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