Seattle Tacoma International to London Heathrow Flights

If it is your first time travelling to London Heathrow then check out the airliners AlphaSky, Singapore Airlines, Aeromexico, Iberia, Finnair, American Airlines, Alaska Airlines, Aer Lingus, Virgin Atlantic, KLM, Air France, British Airways and Delta Air Lines. These airliners all offer direct flights that depart from Seattle-Tacoma International, so you will find flying to London Heathrow is quite easy. The flight time is approximately 9 Hours 52 Minutes.

The exact cost of the flight we vary quite significantly base on the dates you travel, the time of day you will depart and how long in advance you pre book the flights. The cheapest flights available will generally be mid week or late in the evening, so if you are on a budget then these are the flight times you should consider. Alternatively, you could book well in advance and you flight could be up to 50% cheaper, especially with budget airliners. The ticket prices for most airliners will increase the close you get the departure date, so as soon as you know the date you will travel you should book your flights.

When arriving at London Heathrow don’t forget to set your watch to the local time!

For a full summary of all the airliners that fly from Seattle-Tacoma International to London Heathrow, please see the table below.

AirlinerMoTuWeThFrSaSuFirst FlightLast Flight
Delta Air Lines212222212:4019:25
British Airways122122207:0018:50
Virgin Atlantic112222112:4019:25
KLM112222112:4019:25
Air France112222112:4019:25
Iberia121122013:3518:50
Finnair121122013:3518:50
American Airlines121122013:3518:50
Alaska Airlines121122013:3518:50
Aer Lingus121122013:3518:50
Singapore Airlines111111117:4517:45
Aeromexico111111117:4517:45
AlphaSky110001012:1512:15

Flights from Seattle-Tacoma International to London Heathrow are very limited. Only Delta Air Lines operate flights, of which there is only 1 per week. The time of the departure for this flight is 12:40

You can find the latest flight availability and prices from Delta Air Lines at delta.com. You can also book direct and get their latest discounts.

Flight times for Delta Air Lines 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.

DayFlying Time
Monday12:40 and 17:45
Tuesday17:45
Wednesday17:45 and 19:00
Thursday12:40 and 17:45
Friday17:45 and 19:25
Saturday13:10 and 17:45
Sunday17:45 and 18:55

Please remember to leave plenty of time to get though customers when you are departing form the airports. Flights regulations are getting very strict these days so getting through customs can take in excess of 1 hour in some cases.

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