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LHR–SEA · Nonstop
London (London Heathrow Airport) to Seattle (Seattle-Tacoma International Airport).
The nonstop flight from London (LHR) to Seattle (SEA) takes 9h 32m on average, covering about 4,786 miles. Across 3 flights we tracked, the fastest was 9h 32m and the slowest 9h 32m. The current schedule below is the better source for planned airline frequency.
Plan this route| Avg flight time | Distance | Route type | Fastest tracked | Airlines |
|---|---|---|---|---|
| 9h 32m | 4,786 mi | Nonstop | 9h 32m | 4 |
British Airways, Alaska Airlines, Delta Air Lines and 1 more operate 5/day flights from LHR to SEA. Terminal assignments in the captured sample are not confirmed for your flight; check the airline before travel.
| Airline | Captured frequency | Aircraft | Departures (local) |
|---|---|---|---|
| British Airways | 2/day | Boeing 777, Boeing 787 · Airline terminal guide (confirm for your flight) · Seat map | 09:5016:30 |
| Alaska Airlines | 1/day | Boeing 787 · Airline terminal guide (confirm for your flight) | 17:00 |
| Delta Air Lines | 1/day | Airbus A330 · Airline terminal guide (confirm for your flight) · Seat map | 17:4518:30 |
| Virgin Atlantic | 1/day | Airbus A330 · Airline terminal guide (confirm for your flight) · Seat map | 11:40 |
Airlines seen among the 3 flights we have tracked on LHR to SEA. The sample is too small to rank carriers by share; the scheduled departures above show who flies this route most.
Flight times usually differ by direction — jet-stream winds make eastbound crossings faster than westbound ones.
Methodology: figures are aggregated from 3 real flights on this route, sourced from live flight data. Updated daily as new flights are observed.
The nonstop flight from London (LHR) to Seattle (SEA) takes 9h 32m on average. The fastest flight we have tracked took 9h 32m and the slowest 9h 32m.
London (LHR) to Seattle (SEA) is about 4,786 miles by air.
Yes. British Airways, Alaska Airlines, Delta Air Lines and 1 more fly nonstop from London (LHR) to Seattle (SEA), with 5/day departures.
British Airways, Alaska Airlines, Delta Air Lines, and Virgin Atlantic fly nonstop from London (LHR) to Seattle (SEA).
The LHR–SEA route is flown with Airbus A330, Boeing 777, Boeing 787.