AirportMiles

Seoul (ICN) – London (LHR)

Flights on GoogleSkyscanner
Distance, flight time and the airlines that fly it, from open data.
Distance
8,884 km
5,520 mi · 4,797 nm
Flight time
11 h 15 min
Estimate from distance
Time difference
9 h / 8 h
January / July
CO2 per passenger
1,037 kg
One way, economy, incl. RF (614 kg CO2 only)
Passengers, 6 months
180,739
Jan 2026 – Jun 2026
Flights / week
35
Both directions, average
Seats filled
—
Airlines nonstop
3
KE, OZ, VS

Traffic: Incheon International Airport Corporation (Korea), scheduled passenger flights, Jan 2026 – Jun 2026. Distance: WGS-84 ellipsoid. CO2: UK DESNZ 2026 factors. Sources

Great circle from ICN to LHRICNLHR
Shortest path over the earth's surface (great circle). Real flights bend around weather, winds and airspace.

The way there

Heading from ICN
330°
Heading from LHR
40°
Halfway point
64.95, 76.53
Great-circle km
8,861 km (sphere, for EU261)
Clocks
9 h in January, 8 h in July

The estimate for a route without real times is 11 h 15 min; how it is worked out is on Sources.

Passengers per month, both directions (Jan 2026 – Jun 2026)Busiest: May 2026: 36,126 passengers
020K40KJanFebMarAprMay36.1KJun
Show as a table
Month Passengers
Jan 202625,698
Feb 202625,764
Mar 202625,147
Apr 202633,937
May 202636,126
Jun 202634,067
Flights per month, both directions (Jan 2026 – Jun 2026)Busiest: May 2026: 186 flights
0100200JanFebMarAprMay186Jun
Show as a table
Month Flights
Jan 2026124
Feb 2026112
Mar 2026128
Apr 2026180
May 2026186
Jun 2026170

Airlines flying ICN–LHR nonstop

Airline Flights / week Share of passengers
KEKorean Air Lines14
43%
OZAsiana Airlines14
38%
VSVirgin Atlantic Airways6.8
19%

Both directions, Jan 2026 – Jun 2026. Airlines with at least one flight a month. Incheon International Airport Corporation (Korea), scheduled passenger flights. Sources

Delay compensation (EU261 / UK261)

Measured by great-circle distance: 8,861 km.

ICN Seoul → LHR London

UK261£520 for arriving 3 hours or more late (£260 if 3–4 hours).

Covers UK or EU airlines only.

LHR London → ICN Seoul

UK261£520 for arriving 3 hours or more late (£260 if 3–4 hours).

Covers any airline.

Also owed for a cancellation with less than 14 days' notice or denied boarding. Not owed for extraordinary circumstances. On a connection, the distance to the final destination counts. From 23 October 2027 the EU's Regulation 2026/2202 applies; it keeps these amounts (what changes in 2027). Information, not legal advice.

Every airport pair between Seoul and London

LHRLGWSTNLTNLCYSEN
ICN8,8848,8998,8188,8458,8588,823
GMP8,8918,9068,8248,8528,8658,830

Kilometres. Linked numbers have a page of their own. All Seoul airports · All London airports

More routes from ICN

Route Distance Passengers
ICN → NRT1,260 km 2,519,026 (6 mo)
ICN → KIX862 km 2,313,960 (6 mo)
ICN → FUK563 km 1,708,245 (6 mo)
ICN → HKG2,067 km 1,316,010 (6 mo)
ICN → TPE1,460 km 1,184,972 (6 mo)
ICN → PVG821 km 1,111,272 (6 mo)
ICN → BKK3,665 km 950,069 (6 mo)
ICN → DAD2,976 km 941,076 (6 mo)
ICN → SIN4,614 km 900,158 (6 mo)
ICN → TAO580 km 797,360 (6 mo)

More routes from LHR

Route Distance Passengers / year
LHR → JFK5,555 km 2,984,474
LHR → DUB450 km 1,903,141
LHR → MAD1,243 km 1,550,044
LHR → AMS371 km 1,460,366
LHR → FRA656 km 1,410,787
LHR → LAX8,781 km 1,410,748
LHR → MUC944 km 1,304,262
LHR → IST2,493 km 1,281,925
LHR → ZRH790 km 1,147,298
LHR → CDG348 km 1,121,802

Questions

Seoul (ICN) and London (LHR) are 8,884 km (5,520 miles, 4,797 nautical miles) apart, measured along the shortest path over the earth's surface.