Flights from London to Seattle

London to Seattle is a route covering 7,701 km (4,785 miles), with a typical flight time of 9h 33m. 5 airport combinations currently serve this route, giving travelers flexibility on departure and arrival points. Seattle is located in United States, in Americas. This page brings together real route data, current fares where available, and links to more specific planning tools — flight duration, distance, direct-flight availability, and seasonal patterns — so you can plan the trip itself rather than piece it together from separate searches. Fares and availability change constantly; the figures below reflect what's actually on file for this route today, not an estimate.

Why visit Seattle

Seattle is in United States (Northern America). The capital of United States is Washington. The main languages are Chinese, English, French. The local currency is the United States dollar ($).

Airport information

Best time to book

As a general industry pattern, mid-week departures (Tuesday and Wednesday) and booking 4–8 weeks ahead tend to run cheaper than weekend or last-minute fares. We don't have a live fare history for this specific route yet — use the search box to see current prices.

Best months to travel

Typical weather in Seattle by season, based on the last 3 years of real historical data.

Flight duration

This is the direct, non-stop flight time for the route's real great-circle distance. Connecting itineraries take longer depending on layover length.

Nearby airports

Things to do in Seattle

Transportation from the airport

Most airports offer a mix of taxi ranks, rideshare pickup zones, airport rail or bus links, and rental car counters. Exact options, journey times, and fares vary by airport and terminal — check Seattle's official airport website for current transfer options before you travel.

More about this route

Other flights from London

FAQs — Flights from London to Seattle