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LHR to GMP: distance & flight time
London (London Heathrow Airport) → Seoul (Gimpo International Airport)
5,510 mi
8,868 km · 4,788 nm
11h 16m
estimated nonstop flight time
+8h
time difference · heading northeast
See live LHR→GMP fares Phone-only fares on this route — call free
Flight time details
5,510 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
- GMP — Gimpo 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 GMP
- ICN · Incheon International Airport20 mi away
- SSN · Seoul Air Base (K-16)19 mi away
- SWU · Suwon Airport25 mi away
- OSN · Osan Air Base35 mi away
Frequently asked questions
How far is LHR from GMP?
The flight distance from London (LHR) to Seoul (GMP) is 5,510 miles (8,868 km, 4,788 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from LHR to GMP?
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.
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 GMP?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on LHR–GMP that never appear on search engines, with no booking fees.