ICN to LHR Route Guide
Seoul, South Korea → London, United Kingdom
Quick answer
RKSI (Seoul, South Korea) to EGLL (London, United Kingdom) is a 4,785 NM (8,862 km / 5,506 mi) great-circle route with an initial bearing of 330° (NNW). Typical cruise altitude FL410, expected flight time 10h 28m, common aircraft: Boeing 777-300ER, Airbus A350-900, Boeing 787-9.
Distance
4,785 NM
8,862 km / 5,506 mi
Initial Bearing
330° (NNW)
True heading at departure
Typical Cruise
FL410
41,000 ft
Block Time
10h 28m
Typical jet, no wind correction
Fuel Estimate
15,855 kg
Single-aisle equivalent + reserve
Departure Elevation
23 ft
RKSI
Arrival Elevation
83 ft
EGLL
What aircraft fly this route?
For a 4,785 NM mission, operators typically deploy:
- Boeing 777-300ER
- Airbus A350-900
- Boeing 787-9
- Airbus A330-900neo
Weather considerations
Pilots flying ICN-LHR should brief METARs and TAFs at both ends, plus any en-route SIGMETs. On this long-range mission, plan for an alternate within fuel reserves and review oceanic / NAT track procedures if applicable.
Frequently asked questions
What is the distance between ICN and LHR?
4,785 nautical miles (8,862 km / 5,506 statute miles) great-circle.
How long is the flight from Seoul to London?
Approximately 10h 28m block-to-block for a typical commercial jet, depending on aircraft type and winds.
What aircraft typically fly ICN-LHR?
Common types include Boeing 777-300ER, Airbus A350-900, Boeing 787-9, Airbus A330-900neo depending on operator and demand.
What altitude do flights cruise at?
Most flights at this distance cruise around FL410 (41,000 ft), though winds and traffic affect filed altitude.
What initial heading is the route?
330° true (NNW). Track varies along the route due to great-circle curvature.
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