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Seattle to London: flight time and arrival time

Now in Seattle

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Now in London

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Nonstop flight: about 9h · 4,786 miles · London is 8 hours ahead of Seattle

What time will you land?

If you take off from Seattle at these local times, here's roughly when you'll arrive in London, local time, on a nonstop flight of about 9 hours:

Leave SeattleArrive London
6 AM11 PM
9 AM2 AM +1 day
12 PM5 AM +1 day
3 PM8 AM +1 day
6 PM11 AM +1 day
9 PM2 PM +1 day
11:30 PM4:30 PM +1 day

Based on today's clocks (Monday, October 12, 2026) and an estimated flight time worked out from the distance. Use your ticket's exact times for the most accurate answer.

Calculate your exact flight

Jet lag

Flying east to London means "losing" 8 hours, which is usually harder on the body than flying west. For a few days before you go, try going to bed and getting up an hour earlier. On the flight, sleep if it's night-time in London, and once you land get outside in the morning light.

Questions

How long is the flight from Seattle to London?

A nonstop flight from Seattle to London takes about 9 hours. The route covers roughly 4,786 miles (7,703 km). Flights with a stopover take longer.

If I leave Seattle at 6 PM, what time will I land in London?

On a nonstop flight of about 9 hours, leaving Seattle at 6:00 PM local time gets you to London at about 11 AM the next day local time, based on today's clocks.

What is the time difference between Seattle and London?

London is currently 8 hours ahead of Seattle.