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Cheap flights from Seattle (SEA) to United Kingdom

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

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

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 51 days in advance, which can save you up to 38% on flights from Seattle to United Kingdom compared to booking the week you need them. Waiting 51 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $813. For sooner than that we have options available in the next 3 days from $886.

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

Due to multiple factors, expect to potentially pay more when booking in June. For low rates, February can be a great choice for travel to United Kingdom. Flights to United Kingdom from Seattle in February are about $634 on average during February, but can be found for as low as $394.

Cheap flights from Seattle to United Kingdom in August, September 2020

The best prices found for SEA to United Kingdom flights for August, September
23 Aug - 2 Sep
$507pp
SEA
Seattle/Tacoma Intl
Icelandair
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
Icelandair
 
1 STOP
SEA
Seattle/Tacoma Intl
23 Aug - 30 Aug
$511pp
SEA
Seattle/Tacoma Intl
Icelandair
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
Icelandair
 
1 STOP
SEA
Seattle/Tacoma Intl
27 Aug - 23 Sep
$538pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
     
3 STOPS
LHR
London Heathrow
LHR
London Heathrow
Icelandair
 
1 STOP
SEA
Seattle/Tacoma Intl

Seattle to United Kingdom 2020 flight deals

Cheap flights to United Kingdom from Seattle found for this year
1 Nov - 18 Nov
$402pp
SEA
Seattle/Tacoma Intl
Icelandair
 
1 STOP
LGW
London Gatwick
LGW
London Gatwick
Icelandair
 
1 STOP
SEA
Seattle/Tacoma Intl
21 Oct - 28 Oct
$407pp
SEA
Seattle/Tacoma Intl
Icelandair
 
1 STOP
LGW
London Gatwick
LGW
London Gatwick
Icelandair
 
1 STOP
SEA
Seattle/Tacoma Intl
28 Oct - 4 Nov
$408pp
SEA
Seattle/Tacoma Intl
Icelandair
 
1 STOP
LGW
London Gatwick
LGW
London Gatwick
Icelandair
 
1 STOP
SEA
Seattle/Tacoma Intl

Non-stop flights to United Kingdom from Seattle

Save time with Seattle to United Kingdom direct flight deals
14 Sep - 28 Oct
$672pp
SEA
Seattle/Tacoma Intl
Finnair
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
Finnair
Non-Stop
SEA
Seattle/Tacoma Intl
17 Nov - 8 Dec
$682pp
SEA
Seattle/Tacoma Intl
British Airways
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
British Airways
Non-Stop
SEA
Seattle/Tacoma Intl
5 Oct - 4 Nov
$692pp
SEA
Seattle/Tacoma Intl
Finnair
Non-Stop
LHR
London Heathrow
LHR
London Heathrow
Finnair
Non-Stop
SEA
Seattle/Tacoma Intl

Last minute flights from Seattle to United Kingdom

Late deals on round-trip flights to United Kingdom from Seattle, departing today and this week
27 Jul - 7 Aug
$924pp
SEA
Seattle/Tacoma Intl
Major Airline
 
1 STOP
LHR
London Heathrow
LHR
London Heathrow
Major Airline
 
1 STOP
SEA
Seattle/Tacoma Intl
24 Jul - 21 Aug
$1002pp
SEA
Seattle/Tacoma Intl
SWISS
   
2 STOPS
LHR
London Heathrow
LHR
London Heathrow
SWISS
   
2 STOPS
SEA
Seattle/Tacoma Intl
28 Jul - 29 Aug
$1026pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
LHR
London Heathrow
LHR
London Heathrow
Multiple Airlines
     
3 STOPS
SEA
Seattle/Tacoma Intl

One-way flights to United Kingdom from Seattle

The cheapest one-way flights from Seattle to United Kingdom
7:16 am - 8:45 am
TAP AIR PORTUGAL
3 Stops
41h 29m
SEA - LHR
TAP AIR PORTUGAL
3:15 pm - 12:00 pm
Aer Lingus
1 Stop
12h 45m
SEA - LHR
Aer Lingus
$277
lastminute.com
3:56 pm - 8:45 am
Multiple Airlines
3 Stops
32h 49m
SEA - LHR
Multiple Airlines
$278
Kiwi.com

Related info for your journey

Useful info, stats and facts about Seattle to United Kingdom flights.

Flight FAQs

From Seattle to United Kingdom

Are flight prices decreasing from Seattle to United Kingdom 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 Seattle and United Kingdom 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 Seattle to United Kingdom for under $500 on Cheapflights?

Yes, there are multiple flights from Seattle to United Kingdom for under $500. The cheapest flight booked recently is on Icelandair for just $402, but on average you can expect to pay $419.

Are there nonstop flights from Seattle to United Kingdom for under $700 on Cheapflights?

Cheapflights has at least 20 direct flights from Seattle to United Kingdom under $700. A good price for a nonstop flight from Seattle to United Kingdom is less than $719.

Are there last-minute flights available from Seattle to United Kingdom for under $1000?

There are currently 20+ open flights from Seattle to United Kingdom within the next 7 days for less than $1000.

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

American Airlines, Air Canada and Air France are the most popular airlines when flying from Seattle to United Kingdom.

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

The most popular route from Seattle to United Kingdom is Seattle/Tacoma Intl - London Heathrow. You may also consider Seattle/Tacoma Intl - London Gatwick or Seattle/Tacoma Intl - London City.

What are the cheapest Flights from Seattle to United Kingdom?

While on average a flight from Seattle to United Kingdom is generally $661, our data shows the cheapest flight currently is $433. When looking at the most popular route, (Seattle/Tacoma Intl - London Heathrow), you can expect to pay $450 for that flight.

How long is the flight from Seattle to United Kingdom?

For as low as $789, British Airways can have you in United Kingdom from Seattle in 11h 40m. This flight may include one or multiple stops.

What is the cheapest airline to fly from Seattle to United Kingdom round-trip?

According to our current data, Icelandair ($402), offers the cheapest pricing from Seattle to United Kingdom.

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

The cheapest airlines for a one-way flight from Seattle to United Kingdom are TAP AIR PORTUGAL ($245) and Aer Lingus ($277).

Arrival points for flights from Seattle to United Kingdom

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Destination information for United Kingdom

Things to know before you go. Useful info for your trip from Seattle to United Kingdom
Today's exchange rate
$1 = £0.77

Airports servicing Seattle

Seattle King County/Boeing (BFI)
Seattle Lake Union Spb (LKE)
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