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LHR to ICN: distance & flight time
London (London Heathrow Airport) → Seoul (Incheon International Airport)
5,506 mi
8,861 km · 4,785 nm
11h 16m
estimated nonstop flight time
+8h
time difference · heading northeast
See live LHR→ICN fares Phone-only fares on this route — call free
Flight time details
5,506 miles nonstop takes roughly 11h 16m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 8-hour time gain when reading arrival times on your ticket.
The two airports
- LHR — London Heathrow Airport · London, United Kingdom
- ICN — Incheon International Airport · Seoul, South Korea
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near LHR
- LGW · London Gatwick Airport25 mi away
- NHT · RAF Northolt6 mi away
- HYC · Wycombe Air Park18 mi away
- FAB · Farnborough Airport19 mi away
Near ICN
- GMP · Gimpo International Airport20 mi away
- SWU · Suwon Airport34 mi away
- SSN · Seoul Air Base (K-16)36 mi away
- OSN · Osan Air Base41 mi away
Frequently asked questions
How far is LHR from ICN?
The flight distance from London (LHR) to Seoul (ICN) is 5,506 miles (8,861 km, 4,785 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from LHR to ICN?
A nonstop flight takes about 11h 16m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from LHR to ICN?
Nonstop service on LHR–ICN depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 11h 16m nonstop estimate.
What is the time difference between London and Seoul?
Seoul is 8 hours ahead of London.
What is the cheapest way to fly from LHR to ICN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on LHR–ICN that never appear on search engines, with no booking fees.
Why are some LHR to ICN fares phone-only?
Consolidator contracts let us sell certain LHR–ICN tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.