Flights from London Airport LHR to Seattle Airport SEA

Q: How long does the flight from London to Seattle to take?

The flight from London to Seattle takes9 Hours 52 Minutes.

We've found the cheapest flights to Seattle

Returns from £469.82

One-way from £511.50

Flying from London Heathrow to Seattle-Tacoma International is relatively easy as there are 13 who offer direct flights. These airliners include AlphaSky, SAS, Aeromexico, KLM, Iberia, Finnair, American Airlines, Alaska Airlines, Aer Lingus, Virgin Atlantic, Air France, Delta Air Lines and British Airways. When travelling from London Heathrow you will cover about 4,786 miles before you reach Seattle-Tacoma International. This journey will take 9 Hours 52 Minutes.

The price of the flight is dependent on the time of the day you fly and the day of the week with weekends being normally a higher price. If you are on a tight budget then you should avoid flying at peak hours as the prices are more expensive. The cheapest flights are in the evenings and in mid week. We advise all our viewers to book well in advance. This way you will get the low priced tickets available.

The time zone at Seattle-Tacoma International is different from London Heathrow, so please be aware of this when making travel arrangements.

If you plan on flying to Seattle-Tacoma International Airport from London Heathrow Airport you can pre-arrange your long or short term parking at London Heathrow Airport.

If you rented a vehicle at Seattle-Tacoma International Airport and have to return it with a full tank of fuel, avoid excess fees by refilling at the nearest fuel station to Seattle-Tacoma International Airport.

Organise and book your choice of transport to London Heathrow Airport:

Pre-booking your transportation requirements at Seattle-Tacoma International Airport can save a lot of time, hassle and money when arriving at the airport. Research and book your preferred choice of ground transportation at Seattle-Tacoma International Airport:

You can also research and pre-book a hotel near Seattle-Tacoma International Airport

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

Flights Chart

Airliner	Mo	Tu	We	Th	Fr	Sa	Su	First Flight	Last Flight	Flights
Delta Air Lines	2	2	2	2	2	2	2	13:25	18:30	VIEW FLIGHTS
British Airways	2	2	2	2	2	2	2	09:25	16:30	VIEW FLIGHTS
Virgin Atlantic	2	2	2	2	2	2	1	13:25	18:00	VIEW FLIGHTS
Air France	2	2	2	2	2	2	1	13:25	18:00	VIEW FLIGHTS
KLM	2	2	2	2	2	2	0	13:25	18:00	VIEW FLIGHTS
Iberia	2	2	2	2	2	2	0	09:25	16:30	VIEW FLIGHTS
Finnair	2	2	2	2	2	2	0	09:25	16:30	VIEW FLIGHTS
American Airlines	2	2	2	2	2	2	0	09:25	16:30	VIEW FLIGHTS
Alaska Airlines	2	2	2	2	2	2	0	11:10	18:20	VIEW FLIGHTS
Aer Lingus	2	2	2	2	2	2	0	09:25	16:30	VIEW FLIGHTS
Aeromexico	1	1	1	1	1	1	1	13:25	15:45	VIEW FLIGHTS
SAS	1	1	1	1	1	1	0	17:25	18:00	VIEW FLIGHTS
AlphaSky	1	1	0	0	0	0	0	09:25	16:30	VIEW FLIGHTS

Most people choose to fly with Delta Air Lines. They offer the largest number of flights so they have times which are most likely to suite you. The flights they offer will go by the flight numbers DL21 and DL5975 with times between 13:25 and 18:30.

If you would like more information on this flight the please visit the website for Delta Air Lines at delta.com. You will be able to find the latest availability, prices and make your booking online.

Flight times for the route are summarised in the table below. These time were correct at the time of writing, but please be aware that times may vary from time to time so please check their website for exact times and the dates you wish to fly.

Flights Time In WeekDays

Day

Flight Times

Flights

Monday