Cheap flights from Seattle, WA to London, United Kingdom

Flights starting at £166. Choose between Alaska Airlines, Ryanair, or Icelandair to find the best price.

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Travelers usually depart from Seattle–Tacoma International, or Kenmore Air Harbor Seaplane Base when they travel from Seattle to London. Book your trip to arrive at Heathrow, Gatwick, London Stansted, Luton, or London City. The distance between Seattle and London is 7710 km. The most popular airlines for this route are Alaska Airlines, Ryanair, Icelandair, easyJet, and WestJet. Seattle and London have 320 direct flights per week. When you arrive at London, consider visiting Tintern Abbey, United Kingdom, St. David's Cathedral, Cardiff, Tower of London, Portsea Island, Natural History Museum, Roman Baths, Bath, British Museum, Avebury, St. Paul's Cathedral, St Fagans: National History Museum, Tate Modern, Stonehenge, Isle of Wight, and Canterbury Cathedral.

Weekly direct flights

Discover the top airlines offering direct flights from Seattle to London in the next month. You’ll find the number of daily direct flights per airline in the table.

Weekly direct flights for Mon 04.11 - Sun 10.11

AirlineMon 04.11Tue 05.11Wed 06.11Thu 07.11Fri 08.11Sat 09.11Sun 10.11
2111211
---31---111
1------1111
---12---1---2
---12---------2

Weekly direct flights for Mon 11.11 - Sun 17.11

AirlineMon 11.11Tue 12.11Wed 13.11Thu 14.11Fri 15.11Sat 16.11Sun 17.11
1111211
121---111
121211---
112------------
112------------

Weekly direct flights for Mon 18.11 - Sun 24.11

AirlineMon 18.11Tue 19.11Wed 20.11Thu 21.11Fri 22.11Sat 23.11Sun 24.11
1121222
11---1------1
---11------------
------1------------
---------------------

Weekly direct flights for Mon 25.11 - Sun 01.12

AirlineMon 25.11Tue 26.11Wed 27.11Thu 28.11Fri 29.11Sat 30.11Sun 01.12
2222122
111---11---
---1---1111
---------------------
------------1------

Check-in for a flight from Seattle to London

NameCarrier codeIATA CodePassport needed during booking
Alaska AirlinesASAASNo
RyanairRYRFRNo
IcelandairICEFIYes
easyJetEZYU2Yes
WestJetWJAWSNo

Weather in London

Average Weather

MonthAverage monthly max temperatureAverage monthly min temperature
January7°C2°C
February8°C3°C
March11°C4°C
April14°C5°C
May17°C8°C
June20°C11°C
July22°C14°C
August22°C14°C
September19°C12°C
October15°C9°C
November10°C6°C
December8°C3°C
Hottest Month
22°C
July
Coldest month
2°C
January
Sunny days
277
days per year
Snow days
3
days per year

14 day forecast

Saturday
2 Nov
15°C10°C
9 Nov
14°C10°C
Sunday
3 Nov
14°C9°C
10 Nov
13°C11°C
Monday
4 Nov
14°C9°C
11 Nov
11°C8°C
Tuesday
5 Nov
15°C9°C
12 Nov
75%
13°C9°C
Wednesday
6 Nov
15°C10°C
13 Nov
82%
11°C9°C
Thursday
7 Nov
16°C11°C
14 Nov
85%
11°C10°C
Friday
8 Nov
16°C11°C
15 Nov
89%
11°C8°C

Frequently asked questions

How long does it take to travel from Seattle to London?
What is the flight distance between Seattle and London?
What airlines offer nonstop (direct) flights between Seattle and London?
What are the most popular routes to and from Seattle?
What are the most popular routes to and from London?
What airports are near Seattle?
Which airlines fly between Seattle and London?
When's the best time to travel between Seattle and London?
What flights operate between Seattle and London?
How many airports are there near Seattle?
What time do nonstop (direct) flights between Seattle and London depart?
What time do nonstop (direct) flights between Seattle and London arrive?
What time do flights between Seattle and London depart?
What time do flights between Seattle and London arrive?

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