Price observed over the last 3 months for a round trip.
Cheapest flight tickets
Price observed over the last 3 months for a round trip.
Average price of a round trip
Average flight ticket price recorded over the last 3 months for a round trip.
Flight duration
A flight from Seattle to London takes on average 9h25.
Best time
According to user searches, the ideal month to go to London is December.
Check out our tips for booking your flight to London (United Kingdom) from Seattle (USA) at the cheapest possible price.
Usually, the cheapest month to pick up a ticket on this route is September, with an average flight ticket price of $608 (calculation over the last two years). The most touristic season corresponds to the months of December, August and September.
For the cheapest flights, it is advisable to buy your ticket at least 64 days before the departure date.
The airline offering the cheapest flight tickets is Air Canada. A ticket from the airline Air Canada to London costs on average $710.
The airlines that offer the most flights are .
Here is some information and tips to know before booking your flight:
Seattle is a city in the country USA, the time zone is GMT . In Seattle, it is currently {fromLocalTime}, the temperature is on average 4°C, with a minimum of 3°C and a maximum of 5°C.
The city of Seattle (SEA) has 4 airport(s): Seattle-Tacoma, Kenmore Air Harbor Spb., Renton and King County
London is in the country United Kingdom, the time zone is GMT +0. In London, it is currently {toLocalTime}, the temperature is on average 4°C, with a minimum of 3°C and a maximum of 8°C.
The city of London (LON) has 5 airport(s): London Gatwick, London-Stansted, London Heathrow, London Luton and London City
If you want to visit London during the least touristic period, choose the month of December.
In London, the most popular month is December. It is during this period that the prices offered by airlines are also the highest.
According to our data, it is recommended to book your flight 64 days before your departure. If you book your flight ticket 10 weeks before your departure, you may find a price below average. You can also choose morning flights that are 1% cheaper than afternoon and evening flights. The cheapest day to book a flight from Seattle to London is Saturday.
When you leave, you can leave from Seattle-Tacoma, and you will arrive at London Heathrow.
The airport Seattle-Tacoma is located 16 km, Kenmore Air Harbor Spb. is located 3 km, Renton is located 16 km or King County is located 8 km from the city centre. You can access it by using public transportation, taking a taxi, or renting a car.
Airplane is the only means of transportation listed on Liligo for this journey.
In summer, the average temperature is 18°C in London and 18°C in Seattle. The average rainfall in summer is 66 mm in London and 39 mm in Seattle. In summer, it is warmer in London and it rains less in Seattle. In winter, it is colder in London and it rains more in Seattle.