Cheap flights from Seattle to London from CA$432

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1 stop
Wed, Sep 17
Seattle SEALondon LGW

CA$432
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2 stops
Tue, Sep 16
Seattle SEALondon STN

CA$510
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1 stop
Mon, Sep 15
Seattle SEALondon LHR

CA$519
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1 stop
Mon, Sep 15
Seattle SEALondon LHR

CA$519
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1 stop
Sun, Sep 14
Seattle SEALondon LHR

CA$605
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1 stop
Sun, Sep 14
Seattle SEALondon LHR

CA$605
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Prices updated:

2 stops
Tue, Sep 16 – Sat, Sep 20
Seattle SEALondon LGW

CA$909
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2 stops
Tue, Sep 16 – Sat, Sep 20
Seattle SEALondon STN

CA$912
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2 stops
Tue, Sep 16 – Sat, Sep 20
Seattle SEALondon STN

CA$917
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1 stop
Mon, Sep 15 – Sat, Sep 20
Seattle SEALondon LHR

CA$922
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1 stop
Mon, Sep 15 – Sat, Sep 20
Seattle SEALondon LHR

CA$922
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Direct
Fri, Sep 19 – Wed, Sep 24
Seattle SEALondon LHR

CA$996
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Prices updated:

How much do flights to London cost?

Key info about flying to London

Depart from
Seattle–Tacoma International
Arrive to
Heathrow
Average flights per week
400
Flight distance
7710 km
Worth visiting
St. Paul's Cathedral - Tower of London - Isle of Wight - Canterbury Cathedral - St. David's Cathedral, Cardiff - Tintern Abbey, United Kingdom - Roman Baths, Bath - British Museum - Natural History Museum - Tate Modern - Stonehenge - St Fagans: National History Museum - Avebury - Portsea Island

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 chart.

AirlineSun 24.08Mon 25.08Tue 26.08Wed 27.08Thu 28.08Fri 29.08Sat 30.08
------------------1
------------222
---------------------
Weekly flights: 7 totalDaily flights: 1 averageMost flights: Thursday 2 flights
AirlineSun 31.08Mon 01.09Tue 02.09Wed 03.09Thu 04.09Fri 05.09Sat 06.09
2---12212
2222222
1---11111
Weekly flights: 30 totalDaily flights: 4.29 averageMost flights: Sunday 2 flights
AirlineSun 07.09Mon 08.09Tue 09.09Wed 10.09Thu 11.09Fri 12.09Sat 13.09
2221211
---------------1---
11------1------
Weekly flights: 15 totalDaily flights: 2.14 averageMost flights: Sunday 2 flights
AirlineSun 14.09Mon 15.09Tue 16.09Wed 17.09Thu 18.09Fri 19.09Sat 20.09
11121---2
111---11---
11111---1
Weekly flights: 19 totalDaily flights: 2.71 averageMost flights: Wednesday 2 flights

Check-in for a flight from Seattle to London

NameCarrier codeIATA CodePassport needed during booking
RyanairRYRFRNo
Alaska AirlinesASAASNo
Hawaiian AirlinesHALHANo
Aer LingusEINEINo
easyJetEZYU2Yes

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
279
days per year
Snow days
3
days per year

14 day forecast

Saturday
23 Aug
22°C15°C
30 Aug
89%
18°C13°C
Sunday
24 Aug
26°C14°C
31 Aug
86%
19°C14°C
Monday
25 Aug
29°C16°C
1 Sep
22°C13°C
Tuesday
26 Aug
26°C19°C
2 Sep
83%
18°C15°C
Wednesday
27 Aug
74%
23°C16°C
3 Sep
89%
20°C14°C
Thursday
28 Aug
80%
22°C13°C
4 Sep
20°C12°C
Friday
29 Aug
85%
17°C14°C
5 Sep
22°C14°C
Travelers usually depart from Seattle–Tacoma International, Kenmore Air Harbor Seaplane Base, or Boeing Field 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 Ryanair, Alaska Airlines, Hawaiian Airlines, Aer Lingus, and easyJet. Seattle and London have 400 direct flights per week. When you arrive at London, consider visiting St. Paul's Cathedral, Tower of London, Isle of Wight, Canterbury Cathedral, St. David's Cathedral, Cardiff, Tintern Abbey, United Kingdom, Roman Baths, Bath, British Museum, Natural History Museum, Tate Modern, Stonehenge, St Fagans: National History Museum, Avebury, and Portsea Island.

Frequently asked questions

How long does it take to travel from Seattle to London?
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What airlines offer nonstop (direct) flights between Seattle and London?
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