✈ ICN → LHR
11H 18M IN A METAL TUBE. 5,506 MILES. EARN THE LEG.
Flight from Seoul to London
From Incheon (ICN), South Korea Asia → Heathrow (LHR), United Kingdom Europe
How long is the flight from Seoul to London?
A nonstop flight from Seoul (ICN) to London (LHR) takes about 11 hours 18 minutes, covering a great-circle distance of 5,506 miles (8,861 km). Actual scheduled time varies by airline, routing, and wind — expect ±15 to 30 minutes from this estimate.
Avg flight time
11h 18m
Nonstop, scheduled
Distance
5,506 mi
8,861 km · great-circle
Avg speed
784 km/h
Door-to-door including taxi
Time zones & jet lag
Seoul timezone
UTC+9
Asia/Seoul
London timezone
UTC+1
Europe/London
Time difference
-8h
8 hours behind
Jet lag (rough)
~5.6d
Westward — easier
CO₂ footprint per passenger
Economy class, single passenger. Source: DEFRA 2024 averages.
This flight emits roughly 3.6× the CO₂ of an equivalent train trip and 0.9× a car driven alone over the same distance.