Cheap flights from Seattle, WA to London, United Kingdom
Flights starting at $345. Choose between WestJet, Alaska Airlines, or easyJet to find the best price.
Make your travel wishlist, we'll do the rest
Hidden deals
Kiwi-Code uncovers prices airlines don't want you to see.
Effortless booking
Use our flexible filters to tailor your search.
Travel hacking
Look out for the travel hack star icon for even cheaper fares.
Tips to know when travelling to London
Cheapest one-way trip | $345 |
---|---|
Cheapest round-trip | $989 |
Average round-trip | $1,063 |
Includes rare itinerary | |
Nonstop flights in June | $1,015 – $3,911 |
Receive exclusive deals by email
By subscribing you agree to receive offers according to the conditions described in our Privacy Policy.
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 Gatwick, Heathrow, London Stansted, Luton, or London City. The distance between Seattle and London is 7710 km. The most popular airlines for this route are WestJet, Alaska Airlines, easyJet, British Airways, and Aer Lingus. Seattle and London have 401 direct flights per week. When you arrive at London, consider visiting Avebury, Natural History Museum, Roman Baths, Bath, Stonehenge, Portsea Island, Tower of London, Tate Modern, British Museum, Canterbury Cathedral, St. Paul's Cathedral, and Isle of Wight.
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 Sun 02.06 - Sat 08.06
Airline | Sun 02.06 | Mon 03.06 | Tue 04.06 | Wed 05.06 | Thu 06.06 | Fri 07.06 | Sat 08.06 |
---|---|---|---|---|---|---|---|
1 | 3 | 2 | 2 | 2 | --- | 3 | |
3 | 3 | 3 | 3 | 2 | 2 | 1 | |
2 | 2 | 2 | 2 | 2 | 1 | 2 | |
2 | 1 | 1 | 1 | 1 | 1 | 1 | |
2 | 2 | 2 | 1 | --- | --- | --- |
Weekly direct flights for Sun 09.06 - Sat 15.06
Airline | Sun 09.06 | Mon 10.06 | Tue 11.06 | Wed 12.06 | Thu 13.06 | Fri 14.06 | Sat 15.06 |
---|---|---|---|---|---|---|---|
3 | 3 | 3 | 2 | 1 | 1 | 2 | |
2 | 2 | 2 | 2 | 2 | --- | 1 | |
2 | 2 | 2 | 2 | 1 | 1 | 2 | |
2 | 2 | 2 | 1 | --- | --- | --- | |
2 | 1 | 1 | --- | --- | --- | --- |
Weekly direct flights for Sun 16.06 - Sat 22.06
Airline | Sun 16.06 | Mon 17.06 | Tue 18.06 | Wed 19.06 | Thu 20.06 | Fri 21.06 | Sat 22.06 |
---|---|---|---|---|---|---|---|
3 | 3 | 2 | 2 | 3 | 1 | 2 | |
1 | 1 | 2 | 1 | --- | --- | 1 | |
2 | 1 | 1 | --- | 2 | --- | --- | |
1 | --- | 2 | --- | --- | --- | --- | |
--- | --- | --- | --- | --- | --- | --- |
Weekly direct flights for Sun 23.06 - Sat 29.06
Airline | Sun 23.06 | Mon 24.06 | Tue 25.06 | Wed 26.06 | Thu 27.06 | Fri 28.06 | Sat 29.06 |
---|---|---|---|---|---|---|---|
1 | 2 | 3 | 2 | 1 | 2 | 2 | |
--- | 1 | 1 | 1 | 1 | --- | 1 | |
1 | 1 | 1 | 1 | 1 | 2 | 1 | |
--- | 1 | 1 | 1 | --- | 1 | 2 | |
--- | --- | --- | --- | --- | --- | --- |
Check-in for a flight from Seattle to London
Name | Carrier code | IATA Code | Passport needed during booking | Online check-in available |
---|---|---|---|---|
WestJet | WJA | WS | No | Opens 24 days before flight Closes 1 hours before flight |
Alaska Airlines | ASA | AS | No | Opens 24 days before flight Closes 1 hours before flight |
easyJet | EZY | U2 | No | Opens 720 days before flight Closes 2 hours before flight |
British Airways | BAW | BA | No | Opens 24 days before flight Closes 2 hours before flight |
Aer Lingus | EIN | EI | No | Opens 48 days before flight Closes 5 hours before flight |
Weather in London
Average Weather
Month | Average monthly max temperature | Average monthly min temperature |
January | 7°C | 2°C |
February | 8°C | 3°C |
March | 11°C | 4°C |
April | 14°C | 5°C |
May | 17°C | 8°C |
June | 20°C | 11°C |
July | 22°C | 14°C |
August | 22°C | 14°C |
September | 19°C | 12°C |
October | 15°C | 9°C |
November | 10°C | 6°C |
December | 8°C | 3°C |
14 day forecast
Frequently asked questions
Planning a trip? Thanks to our Virtual Interlining algorithm, we offer billions of route combinations between any A and any B in the world by plane, train, and bus. Find the cheapest routes and best deals for you, as well as the best dates on which to travel.
Explore alternative trips
Flights from Seattle
- Flights from Seattle to Denver
- Flights from Seattle to Las Vegas
- Flights from Seattle to Mexico City
- Flights from Seattle to Orlando
- Flights from Seattle to Atlanta
- Flights from Seattle to Austin
- Flights from Seattle to Houston
- Flights from Seattle to Paris
- Flights from Seattle to Barcelona
- Flights from Seattle to Rome
- Flights from Seattle to Los Angeles
- Flights from Seattle to Phoenix
- Flights from Seattle to Washington, D.C.
- Flights from Seattle to Detroit
- Flights from Seattle to Madrid
- Flights from Seattle to Dublin
- Flights from Seattle to Minneapolis
- Flights from Seattle to Cleveland
- Flights from Seattle to Guadalajara
- Flights from Seattle to Salt Lake City
Flights to London
- Flights from New York to London
- Flights from Los Angeles to London
- Flights from Boston to London
- Flights from Atlanta to London
- Flights from Tel Aviv to London
- Flights from San Francisco to London
- Flights from Chicago to London
- Flights from Dallas to London
- Flights from Raleigh to London
- Flights from Denver to London
- Flights from Miami to London
- Flights from Washington, D.C. to London
- Flights from Orlando to London
- Flights from Paris to London
- Flights from Houston to London
- Flights from Minneapolis to London
- Flights from Dublin to London
- Flights from Athens to London
- Flights from Austin to London
- Flights from Charlotte to London
Popular routes
- Flights from Dublin to London
- Flights from Barcelona to San Francisco
- Flights from Manila to Singapore
- Flights from New York to Bucharest
- Flights from Manila to Panglao
- Flights from Manila to Tagbilaran
- Flights from Orlando to Indianapolis
- Flights from Chicago to Las Vegas
- Flights from Chicago to Denver
- Flights from Washington, D.C. to Denver
- Flights from Denver to Indianapolis
- Flights from Fort Myers to Chicago
- Flights from Milwaukee to Denver