SeattleLondonNonstop Flight TimeSEA–LHR
Seattle (Seattle-Tacoma International Airport) to London (London Heathrow Airport).
The nonstop flight from Seattle (SEA) to London (LHR) takes 9h 1m on average, covering about 4,786 miles. Across 4 flights we tracked, the fastest was 8h 53m and the slowest 9h 7m. The current schedule below is the better source for planned airline frequency.
Plan this routeAt a glance
| Avg flight time | Distance | Route type | Fastest tracked | Airlines |
|---|---|---|---|---|
| 9h 1m | 4,786 mi | Nonstop | 8h 53m | 1 |
Airlines on this route
Nonstop airlines from Seattle to London
British Airways, Delta Air Lines, and Alaska Airlines operate 5-6/day flights from SEA to LHR.
- First departure
- 13:30
- Last departure
- 22:05
- Cadence
- ~hourly
- Scheduled departure times
- 9
| Airline | Captured daily freq. | Aircraft | Departures (local) |
|---|---|---|---|
| British Airways | 2/day | Boeing 777, Boeing 787 · Seat map | 13:30 |
Aircraft we tracked
Methodology: figures are aggregated from 4 real flights on this route, sourced from live flight data. Updated daily as new flights are observed.
Route FAQ
How long is the flight from Seattle to London?
The nonstop flight from Seattle (SEA) to London (LHR) takes 9h 1m on average. The fastest flight we have tracked took 8h 53m and the slowest 9h 7m.
How far is Seattle from London?
Seattle (SEA) to London (LHR) is about 4,786 miles by air.
Are there nonstop flights from Seattle to London?
Yes. British Airways, Delta Air Lines, and Alaska Airlines fly nonstop from Seattle (SEA) to London (LHR), with 5-6/day departures.
Which airlines fly from Seattle to London?
British Airways, Delta Air Lines, Alaska Airlines, and Virgin Atlantic fly nonstop from Seattle (SEA) to London (LHR).
What aircraft fly from Seattle to London?
The SEA–LHR route is flown with Airbus A330, Boeing 777, Boeing 787.
Route hubs
Nearby airport options
Near London
- LCY - LondonLondon City Airport · 22 mi from LHRFlights to LCY
- LGW - LondonLondon Gatwick Airport · 25 mi from LHRFlights to LGW
- LTN - LondonLondon Luton Airport · 28 mi from LHRFlights to LTN