London to Seoul
11h 27m The flight from London Gatwick Airport (LGW) to Incheon International Airport (ICN) covers 8,876 km (5,515 miles) and takes approximately 11h 27m gate to gate for a typical jet.
The route heads north-east on an initial great-circle bearing of 40°, passing near 64.7° N, 76.2° E at its midpoint.
The route
The great-circle path — the shortest line between the two airports across the curve of the earth. On a flat map it looks bent; on a globe it is straight.
Flight time at different cruise speeds
Aircraft type, winds and routing all move the real number. This is the same distance flown at different speeds, plus the 25-minute ground and climb allowance.
| Typical of | Cruise speed | Airborne | Gate to gate |
|---|---|---|---|
| Turboprop / regional | 550 km/h | 16h 08m | 16h 34m |
| Narrowbody jet (A320, 737) | 780 km/h | 11h 23m | 11h 48m |
| Widebody jet (777, 787, A350) | 900 km/h | 9h 52m | 10h 17m |
| Private jet (Gulfstream) | 850 km/h | 10h 27m | 10h 52m |
Headwinds on an eastbound long-haul routinely add 30–60 minutes; the same route westbound can be quicker. Airlines publish schedules with padding built in.
Both airports
| LGW | ICN | |
|---|---|---|
| Airport | London Gatwick Airport | Incheon International Airport |
| City | London | Seoul |
| Country | United Kingdom | South Korea |
| ICAO | EGKK | RKSI |
| Coordinates | 51.1487, -0.1857 | 37.4691, 126.451 |
| Elevation | 202 ft | 23 ft |
Questions
How long is the flight from London to Seoul?
A non-stop flight from London (LGW) to Seoul (ICN) takes about 11h 27m. The great-circle distance is 8,876 km (5,515 miles, 4,793 nautical miles), flying north-east on an initial bearing of 40°.
How far is London from Seoul?
8,876 kilometres in a straight line over the earth's surface — 5,515 miles or 4,793 nautical miles. Actual flown distance is usually 2–5% longer because aircraft follow airways, avoid weather and route around restricted airspace.
Is there a non-stop flight between LGW and ICN?
This page calculates the direct-line time and distance; it does not track airline schedules. At 8,876 km the route is comfortably within range of a non-stop service if an airline chooses to fly it. Check an airline or booking site for what is actually scheduled.
What should I expect on a 11h 27m flight?
Anything past six hours is a long-haul flight: expect at least one meal service, a significant time-zone shift, and enough sitting that circulation and hydration start to matter. Cabin altitude, dry air and disrupted sleep do more damage to a training routine than the flight itself.
Other routes from London
Airport coordinates from OurAirports (public domain). Distance is a great-circle calculation; flight time uses the model described on the method page. Flight times are great-circle estimates for planning only — always check the airline's published schedule.