Monday is generally a great day to depart. Flying on this day could help you save up to 18%.
To save on the cost of your flight from Seattle to London, book at least 51 days before your planned departure. Booking around this time can save you about 38% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $813 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $886.
February is one of the best times of the year to fly to London from Seattle. Prices for February average $634 per person but you can even find prices for as low as $394. The most expensive prices can be found in the month of June. Opting for a February flight can save you 66% on your journey compared to booking in February
Unlike in the evening, when flights are generally more expensive, you can save up to 9% on flights from Seattle to London by exploring options for tickets in the morning.
|Evening 6 PM to midnight||100% of SEA to LON departures|
|Early morning Midnight to 6 AM||0% of SEA to LON departures|
|Morning 6 AM to noon||0% of SEA to LON departures|
|Afternoon Noon to 6 PM||0% of SEA to LON departures|