Cheap flights from United Kingdom to Seattle

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

All the information you need to plan the best null to SEA flight in 2021: compare United Kingdom to Seattle flight prices with the expected peak season, weather and rainfall in Seattle.
How far in advance should I book a flight from United Kingdom to Seattle?

Find a great deal and save up to 51% by booking at least 52 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from United Kingdom to Seattle within the next two weeks, with the cheapest ticket starting at £450.

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

Due to multiple factors, expect to potentially pay more when booking in July. For low rates, February can be a great choice for travel to Seattle. Flights to Seattle from United Kingdom in February are about £398 on average during February, but can be found for as low as £262.

When is the cheapest time to fly from United Kingdom to Seattle (GB0 - SEA)?

When flying from United Kingdom to Seattle, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Cheap flights from United Kingdom to Seattle in September, October 2021

The best prices found for United Kingdom to SEA flights in September, October
17 Oct - 24 Nov
£382pp
LHR
London Heathrow
Icelandair
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Icelandair
 
1 STOP
LHR
London Heathrow
19 Oct - 26 Oct
£383pp
LHR
London Heathrow
Icelandair
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Icelandair
 
1 STOP
LHR
London Heathrow
9 Oct - 24 Oct
£393pp
LHR
London Heathrow
Multiple airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Air Canada
 
1 STOP
LHR
London Heathrow

United Kingdom to Seattle 2021 flight deals

Cheap flights to Seattle from United Kingdom found for this year
15 Nov - 25 Nov
£379pp
LHR
London Heathrow
Icelandair
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Icelandair
 
1 STOP
LHR
London Heathrow
6 Nov - 12 Nov
£380pp
LHR
London Heathrow
Multiple airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Air Canada
 
1 STOP
LHR
London Heathrow
17 Oct - 24 Nov
£382pp
LHR
London Heathrow
Icelandair
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Icelandair
 
1 STOP
LHR
London Heathrow

Direct flights to Seattle from United Kingdom

Save time with United Kingdom to Seattle direct flight deals
26 Oct - 2 Nov
£413pp
LHR
London Heathrow
Virgin Atlantic
Direct
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Virgin Atlantic
Direct
LHR
London Heathrow
15 Nov - 25 Nov
£415pp
LHR
London Heathrow
Virgin Atlantic
Direct
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Virgin Atlantic
Direct
LHR
London Heathrow
2 Nov - 14 Dec
£432pp
LHR
London Heathrow
Virgin Atlantic
Direct
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Virgin Atlantic
Direct
LHR
London Heathrow

Last-minute flights from United Kingdom to Seattle

Late deals on return flights to Seattle from United Kingdom, departing today and this week
29 Sep - 2 Nov
£460pp
LHR
London Heathrow
Multiple airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Air Canada
 
1 STOP
LHR
London Heathrow
29 Sep - 2 Nov
£464pp
LHR
London Heathrow
Icelandair
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Icelandair
 
1 STOP
LHR
London Heathrow
29 Sep - 2 Nov
£474pp
LHR
London Heathrow
Austrian Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Austrian Airlines
   
2 STOPS
LHR
London Heathrow

One-way flights to Seattle/Tacoma Intl from United Kingdom

The cheapest one-way flights from United Kingdom to Seattle
04:25 - 06:29
Multiple Airlines
2 stops
34h 04m
STN - SEA
Multiple Airlines
£206
Kiwi.com
07:55 - 05:39
Multiple Airlines
2 stops
29h 44m
LGW - SEA
Multiple Airlines
£214
Kiwi.com
09:35 - 06:29
Multiple Airlines
2 stops
27h 54m
LGW - SEA
Multiple Airlines
£228
Combigo

Related info for your journey

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

Flight FAQs

From United Kingdom to Seattle

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

For a flight from United Kingdom to Seattle, you will be flying into Seattle/Tacoma Intl. Seattle/Tacoma Intl (SEA) is just 11.4 mi from the centre of the city.

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

British Airways, Virgin Atlantic, and Aer Lingus 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.

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.

Can I find flights from United Kingdom to Seattle for under £400 on Cheapflights?

Yes, there are multiple flights from United Kingdom to Seattle for under £400. The cheapest flight booked recently is on Icelandair for just £379, but on average you can expect to pay £390.

Are there direct flights from United Kingdom to Seattle for under £500 on Cheapflights?

Cheapflights has 20 direct flights from United Kingdom to Seattle under £500. A good price for a direct flight from United Kingdom to Seattle is less than £446.

Are there last-minute flights available from United Kingdom to Seattle for under £500?

There are currently 20+ open flights from United Kingdom to Seattle within the next 7 days for less than £500.

How popular is this United Kingdom to Seattle flight route?

The United Kingdom to Seattle/Tacoma Intl flight path was viewed by 1,550 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

Related searches

Flights to Seattle (SEA) from United Kingdom
Flights to United Kingdom Flights to Seattle

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COVID Restrictions

View COVID Travel Restrictions for Seattle (SEA)

Do I need a COVID test to fly to Seattle from United Kingdom?

Information is based on travel restrictions from United Kingdom to Seattle/Tacoma Intl

Most visitors from United Kingdom will not be allowed to enter Seattle/Tacoma Intl.

COVID-19 testing requirements
Visitors from United Kingdom must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Seattle/Tacoma Intl.

Quarantine requirements
Visitors from United Kingdom are not required to quarantine after entering Seattle/Tacoma Intl.

Do I need a test to fly back to United Kingdom from Seattle?

Returning to United Kingdom from Seattle/Tacoma Intl

COVID-19 testing requirements
Visitors from Seattle/Tacoma Intl must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to United Kingdom.

Quarantine requirements
Visitors from Seattle/Tacoma Intl are not required to quarantine after entering United Kingdom.

Hide COVID Travel Restrictions for Seattle (SEA)

Departure points for flights from United Kingdom to Seattle

Select to see more specific information for flights to Seattle from all departure points in United Kingdom.

Destination information for Seattle

Things to know before you go - useful duration and weather info for your trip from United Kingdom to Seattle.
Today's exchange rate
£1 = $1.38

Airports servicing Seattle

Top 10 airlines flying from United Kingdom to Seattle/Tacoma Intl

The chart below displays the airlines Cheapflights users travelling from United Kingdom to Seattle choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
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
Malta MedAir
£456 £743 No cancel fee N/A

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

Search Malta MedAir 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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