London to Seattle flights
Heathrow (LHR), United Kingdom → Seattle-Tacoma International (SEA), United States
Set a price watch there and get an email or notification when the fare drops.
Cheapest dates in the next few weeks
| Sat 12 Dec | $406 |
| Tue 5 Jan | $407 |
| Tue 1 Dec | $413 |
| Thu 7 Jan | $415 |
| Wed 2 Dec | $419 |
One-way economy, estimated by Flight Wiki's fare model; typical day about $547. Prices change often, so check live prices before booking.
Questions
How long is the flight from London to Seattle?
About 9h 53m nonstop. The distance is 7,702 km (4,786 miles). Flights with a stop take longer.
How much is a flight from London to Seattle?
One-way economy fares are estimated between $406 and $757 over the coming weeks, about $547 on a typical day. Check live prices before you book.
What is the cheapest day to fly from London to Seattle?
In our estimates Tuesday is usually the cheapest day. The cheapest dates right now are Sat 12 Dec, Tue 5 Jan, Tue 1 Dec.
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