Seattle to London flights
Seattle-Tacoma International (SEA), United States → Heathrow (LHR), United Kingdom
Set a price watch there and get an email or notification when the fare drops.
Cheapest dates in the next few weeks
| Tue 8 Dec | $381 |
| Wed 2 Dec | $400 |
| Tue 1 Dec | $412 |
| Mon 4 Jan | $421 |
| Sat 12 Dec | $430 |
One-way economy, estimated by Flight Wiki's fare model; typical day about $531. Prices change often, so check live prices before booking.
Questions
How long is the flight from Seattle to London?
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 Seattle to London?
One-way economy fares are estimated between $381 and $781 over the coming weeks, about $531 on a typical day. Check live prices before you book.
What is the cheapest day to fly from Seattle to London?
In our estimates Wednesday is usually the cheapest day. The cheapest dates right now are Tue 8 Dec, Wed 2 Dec, Tue 1 Dec.
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