ICN to LHR: Distance and Flight Time
The distance from Incheon International Airport (ICN) to London Heathrow Airport (LHR) is 8,861 km (5,506 mi). A typical nonstop flight covers it in about 11h 35m, heading northwest. The distance is the same in either direction (LHR to ICN).
How far is it from Seoul to London?
The great-circle distance between Incheon International Airport (ICN) and London Heathrow Airport (LHR) is 8,861 km (5,506 mi, 4,785 nautical miles). That is the straight-line distance; a real flight is a little longer because of air-traffic routing.
How long is the flight from ICN to LHR?
A nonstop flight typically takes about 11h 35m. This is an estimate from the distance; actual block times depend on the aircraft, winds and the exact routing. LHR is roughly northwest of ICN.
How is the ICN to LHR route written in code?
The pair is written ICN-LHR in IATA codes and RKSI-EGLL in ICAO codes, the form used on a flight plan. Incheon International Airport is ICN (RKSI), London Heathrow Airport is LHR (EGLL).
| ICN | LHR | |
|---|---|---|
| Airport | Incheon International Airport | London Heathrow Airport |
| ICAO code | RKSI | EGLL |
| Country | South Korea | United Kingdom |
| Elevation | 23 ft | 83 ft |
| Rank by connections | #14 | #4 |
RKSI starts with R, the ICAO prefix for East Asia; EGLL starts with E, the prefix for northern Europe. How ICAO prefixes are laid out.
The two fields sit at almost the same height, within 60 ft (18 m) of each other.
Airlines flying ICN to LHR
3 airlines appear on this route in the open route dataset, 3 of them still listed as active. Each row gives the IATA code, the ICAO code and the radio callsign, which is what an air traffic controller hears:
| IATA | Airline | ICAO | Callsign | Status |
|---|---|---|---|---|
| BA | British Airways | BAW | Speedbird | Active |
| KE | Korean Air | KAL | Koreanair | Active |
| OZ | Asiana Airlines | AAR | Asiana | Active |
Route and carrier data comes from the OpenFlights open dataset, regenerated here on . It is a historical snapshot of scheduled connections, not a live schedule, and it includes codeshare listings, so some carriers shown may no longer operate the route or exist. How we build this · Data and sources.
Frequently asked questions
How far is Seoul from London?
Incheon International Airport (ICN) and London Heathrow Airport (LHR) are 8,861 km (5,506 mi, 4,785 nautical miles) apart in a straight line.
How long is the flight from ICN to LHR?
A typical nonstop flight between ICN and LHR takes about 11h 35m. Actual times vary with aircraft type, winds and routing.
What direction is LHR from ICN?
London Heathrow Airport (LHR) lies roughly northwest of Incheon International Airport (ICN).
Which airlines fly ICN to LHR?
3 airlines appear on the ICN-LHR route in the open dataset, including British Airways, Korean Air, Asiana Airlines.
Related routes
Other routes from Seoul (ICN):
Other routes from London (LHR):
ICN airport code · LHR airport code · Busiest airports worldwide