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LHR to USN: distance & flight time
London (London Heathrow Airport) → Ulsan (Ulsan Airport)
5,698 mi
9,171 km · 4,952 nm
11h 38m
estimated nonstop flight time
+8h
time difference · heading northeast
See live LHR→USN fares Phone-only fares on this route — call free
Flight time details
5,698 miles nonstop takes roughly 11h 38m 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
- USN — Ulsan Airport · Ulsan, 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 USN
- KPO · Pohang Airport (G-815/K-3)28 mi away
- PUS · Gimhae International Airport37 mi away
- TAE · Daegu Airport44 mi away
- CHF · Jinhae Airbase/Airport (G-813/K-10)48 mi away
Frequently asked questions
How far is LHR from USN?
The flight distance from London (LHR) to Ulsan (USN) is 5,698 miles (9,171 km, 4,952 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from LHR to USN?
A nonstop flight takes about 11h 38m 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 Ulsan?
Ulsan is 8 hours ahead of London.
What is the cheapest way to fly from LHR to USN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on LHR–USN that never appear on search engines, with no booking fees.