Flights from Seattle to London
Pick a departure date to see flights and seller prices
We search agencies and airlines for your day: nonstop and connecting flights, baggage, departure and arrival times.
Prices by day: Seattle to London
Lowest one-way price in dollars from recent searches, cheap days in green. Press a day to see flights and exact prices.
Best fares from Seattle to London
Lowest one-way prices found by recent searches for the next 120 days; press a card to search that date
Seattle to London at a glance
- flight time, from 9h 15m to 9h 50m
- 9h 33m
- straight-line distance
- 4,785 mi (7,700 km)
- flights a week
- 24
- flights today
- 4
- first and last departure
- 13:30 - 18:45
- lowest price, with a connection, 17 March
- $272
- lowest nonstop price
- $651
- airlines
- 4
Seattle to London ticket prices by month
Lowest one-way fare found by recent searches
Cheapest month: November 2026, tickets from $240. Prices come from searches over the last few days; check the search for your exact date.
The most expensive month is January 2027: from $468. The average across months is $307.
Seattle to London flight schedule
24 flights a week, 4 today, 15 seasonal or one-off. Departure and arrival times are local.
Seasonal and one-off flights
Not operating in the next two weeks. The first of them is on 17 December.
Days of the week are taken from the schedule for the next 14 days; schedules change by season. London is 8 hours ahead of Seattle. The search shows seat availability and the price for your date.
Airlines flying Seattle to London
Flights a week by schedule and the cheapest nonstop fare of each airline found by recent searches
British Airways
Alaska Airlines
Delta
Virgin Atlantic
British Airways: 2 flights, first departure at 13:30, last at 18:45
MTWTFSS
British Airways Seattle to London
Alaska Airlines: 1 flight, departs at 18:45, tickets from $651 on 3 January
MTWTFSS
Alaska Airlines Seattle to London
Delta: 1 flight, departs at 16:50
MTWTFSS
Delta Seattle to London
Virgin Atlantic: 1 flight, departs at 15:00
MTWTFSS
Airports
Where flights from Seattle to London depart and land
Departure from Seattle
24 flights a week, 11 mi (18 km) from the city centre
Arrival in London
24 flights a week, terminals 3, 5, 14 mi (23 km) from the city centre
When to visit London
Weather by month
Best time to visit: May, June, July, August and September, +18° to +23° by day. In November it is +11° by day and +6° at night, with 11 rainy days.
Daytime and night temperatures in °C, rainy days. Months with the most comfortable weather are in green. Long-term averages.