Flights from Seattle Airport SEA to London Airport LHR

We've found the cheapest flights to London

Returns from £512.16

One-way from £353.71

You have a choice of 11 airline companies when flying from Seattle-Tacoma International to London Heathrow. The flight time from Seattle-Tacoma International to London Heathrow is around 9 Hours 52 Minutes and you will cover 7,702 Km (4,786 Miles). The airport code for Seattle-Tacoma International is SEA and for London Heathrow it is LHR.

The cost of your trip (flights) can change at weekends and at certain times of the day (if there is a choice of flights to your chosen destination. If you are looking to get the cheapest flights possible then we recommend you travel mid week or in the late evening. On occasions, airliners may have special offers so look out for these. We recommend booking your flights to London Heathrow United Kingdom in advance as prices normally increase the nearer the departure date.

Please note that the time difference at London Heathrow is 0.0 GMT. So remember to change your watch before arriving at London Heathrow.

The table below displays the numbers of daily flights from Seattle-Tacoma International (SEA) to London Heathrow (LHR) and the relevant airlines that fly.

Flights Chart
AirlinerMoTuWeThFrSaSuFirst FlightLast FlightFlights
Virgin Atlantic222222116:3019:35VIEW FLIGHTS
Delta Air Lines222222116:3019:35VIEW FLIGHTS
KLM222222016:3019:35VIEW FLIGHTS
British Airways112222213:3019:40VIEW FLIGHTS
Air France222222016:3019:35VIEW FLIGHTS
Iberia112222113:0019:40VIEW FLIGHTS
Finnair112222113:0019:40VIEW FLIGHTS
American Airlines112222113:0019:40VIEW FLIGHTS
Aer Lingus112222113:0019:40VIEW FLIGHTS
Singapore Airlines111111016:3016:30VIEW FLIGHTS
Aeromexico111111016:3016:30VIEW FLIGHTS

Currently Virgin Atlantic offer the most direct flights from to London Heathrow from Seattle-Tacoma International with only 1 flight weekly. The time of the departure is 16:30

When travelling with Virgin Atlantic it would be worth visiting their website www.google.com/search?q=Virgin Atlantic for further information on bookings and special offers.

Below you can see the times of all flights. These flight times do vary so we recommend you look on the appropriate airline website for accurate information for the dates you are departing.

Flights Time In WeekDays
DayFlight TimesFlights
Monday
16:30
AirlineFlightNo
AeromexicoAM7671
Singapore AirlinesSQ2516
Air FranceAF9905
KLMKL4819
Delta Air LinesDL5974
Virgin AtlanticVS106
19:30
AirlineFlightNo
Air FranceAF3603
KLMKL6021
Delta Air LinesDL20
Virgin AtlanticVS4037
19:40
AirlineFlightNo
FinnairAY5448
Aer LingusEI8748
American AirlinesAA6907
British AirwaysBA48
IberiaIB7312
VIEW FLIGHTS
Tuesday
16:30
AirlineFlightNo
AeromexicoAM7671
Singapore AirlinesSQ2516
Air FranceAF9905
KLMKL4819
Delta Air LinesDL5974
Virgin AtlanticVS106
19:30
AirlineFlightNo
Air FranceAF3603
KLMKL6021
Delta Air LinesDL20
Virgin AtlanticVS4037
19:40
AirlineFlightNo
FinnairAY5448
Aer LingusEI8748
American AirlinesAA6907
British AirwaysBA48
IberiaIB7312
VIEW FLIGHTS
Wednesday
13:30
AirlineFlightNo
FinnairAY5450
Aer LingusEI8752
American AirlinesAA6909
British AirwaysBA52
IberiaIB7314
16:30
AirlineFlightNo
AeromexicoAM7671
Singapore AirlinesSQ2516
Air FranceAF9905
KLMKL4819
Delta Air LinesDL5974
Virgin AtlanticVS106
19:35
AirlineFlightNo
Air FranceAF3603
KLMKL6021
Delta Air LinesDL20
Virgin AtlanticVS4037
19:40
AirlineFlightNo
FinnairAY5448
Aer LingusEI8748
American AirlinesAA6907
British AirwaysBA48
IberiaIB7312
VIEW FLIGHTS
Thursday
13:30
AirlineFlightNo
FinnairAY5450
Aer LingusEI8752
American AirlinesAA6909
British AirwaysBA52
IberiaIB7314
16:30
AirlineFlightNo
AeromexicoAM7671
Singapore AirlinesSQ2516
Air FranceAF9905
KLMKL4819
Delta Air LinesDL5974
Virgin AtlanticVS106
19:35
AirlineFlightNo
Air FranceAF3603
KLMKL6021
Delta Air LinesDL20
Virgin AtlanticVS4037
19:40
AirlineFlightNo
FinnairAY5448
Aer LingusEI8748
American AirlinesAA6907
British AirwaysBA48
IberiaIB7312
VIEW FLIGHTS
Friday
13:30
AirlineFlightNo
FinnairAY5450
Aer LingusEI8752
American AirlinesAA6909
British AirwaysBA52
IberiaIB7314
16:30
AirlineFlightNo
AeromexicoAM7671
Singapore AirlinesSQ2516
Air FranceAF9905
KLMKL4819
Delta Air LinesDL5974
Virgin AtlanticVS106
19:35
AirlineFlightNo
Air FranceAF3603
KLMKL6021
Delta Air LinesDL20
Virgin AtlanticVS4037
19:40
AirlineFlightNo
FinnairAY5448
Aer LingusEI8748
American AirlinesAA6907
British AirwaysBA48
IberiaIB7312
VIEW FLIGHTS
Saturday
13:50
AirlineFlightNo
FinnairAY5450
Aer LingusEI8752
American AirlinesAA6909
British AirwaysBA52
IberiaIB7314
16:30
AirlineFlightNo
AeromexicoAM7671
Singapore AirlinesSQ2516
Air FranceAF9905
KLMKL4819
Delta Air LinesDL5974
Virgin AtlanticVS106
19:35
AirlineFlightNo
Air FranceAF3603
KLMKL6021
Delta Air LinesDL20
Virgin AtlanticVS4037
19:40
AirlineFlightNo
FinnairAY5448
Aer LingusEI8748
American AirlinesAA6907
British AirwaysBA48
IberiaIB7312
VIEW FLIGHTS
Sunday
13:00
AirlineFlightNo
FinnairAY5448
Aer LingusEI8748
American AirlinesAA6907
IberiaIB7312
13:40
AirlineFlightNo
British AirwaysBA52
16:30
AirlineFlightNo
Virgin AtlanticVS106
19:35
AirlineFlightNo
Delta Air LinesDL20
19:40
AirlineFlightNo
British AirwaysBA48
VIEW FLIGHTS

Instead of flying directly from Seattle-Tacoma International and arrive at London Heathrow, you may arrive London Heathrow by another airport. Please see chart below for a list of these.

Alternative Direct Routes
RouteStopsDistanceFlying Time
Richmond Vancouver to Heathrow07,579 km (4,709 miles)9 Hours 43 Minutes

Remember to have some local currency before travelling to London Heathrow as there may not be a bureau de change open upon your arrival.

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Flight Price FAQ - Seattle (SEA) to London (LHR)

DIRECT British Airways
What is the cheapest direct flight one way from Seattle SEA to London LHR?
The cheapest direct flight one way from Seattle SEA to London LHR is £353.71 ($442 €411.17)
£353.71
$442 | €411.17
Check Latest Price
DIRECT British Airways
What is the cheapest direct return flight from Seattle SEA to London LHR?
The cheapest direct return flight from Seattle SEA to London LHR is £512.16 ($640 €595.35)
£512.16
$640 | €595.35
Check Latest Price
1+ STOP(S)
What is the cheapest flight one way from Seattle SEA to London LHR?
The cheapest flight one way from Seattle SEA to London LHR is £251.28 ($314 €292.10)
£251.28
$314 | €292.10
Check Latest Price
1+ STOP(S)
What is the cheapest return flight from Seattle SEA to London LHR?
The cheapest return flight from Seattle SEA to London LHR is £511.36 ($639 €594.42)
£511.36
$639 | €594.42
Check Latest Price
Important Note: Prices shown are taken from searches performed for flights operating during the current month. Please use the "Latest Price" buttons to get the most up to date airfares.

Compare Flight Prices from SEA to LHR

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Flight Info FAQ - Seattle (SEA) to London (LHR)

Who flies from Seattle to London?
The following airlines fly from Seattle (SEA) to London (LHR): Aer Lingus, Aeromexico, Air France, American Airlines, British Airways, Delta Air Lines, Finnair, Iberia, KLM, Singapore Airlines, Virgin Atlantic.
How far is the flight from Seattle to London?
The flight from Seattle to London is 7,702KM or 4,786 miles.
How long does the flight from Seattle to London to take?
The flight from Seattle to London takes 9 Hours 52 Minutes.

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