Free tool

Flight time from London to Seoul

About 11 hours and 15 minutes non-stop, 8,861 km (5,506 miles), with your local arrival time and the time difference.

Estimated flight time11h 15mnon-stop
Distance8,861 km5,506 miles · 4,785 nm
Time difference+9hSeoul vs London
Local time now12:53 / 21:53London / Seoul

Estimate for a direct flight from London (LHR, Heathrow) to Seoul (ICN, Incheon). Change the departure time below to see your local arrival time.

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How long is the flight from London to Seoul?

A non-stop flight from London to Seoul takes about 11 hours and 15 minutes. The two cities are 8,861 km (5,506 miles) apart in a straight line, measured between Heathrow (LHR) and Incheon (ICN).

The estimate assumes an average speed of about 830 km/h plus around 35 minutes for taxiing, take-off and landing. Real schedules vary with the airline, aircraft, route and winds – heading east with the jet stream, flights are often a little quicker than this. Check your booking for the exact time.

Time difference and arrival time

Seoul is 9 hours ahead of London right now. A flight leaving London at 10:00 local time lands at about 06:15 local time in Seoul the next day. With a 9h shift, expect some jet lag: as a rough guide the body adjusts by about an hour a day, and flying east (as on this trip) is usually harder than the other way.

Why arrival times look strange

Airline schedules always show local times: departure in the departure city’s time and arrival in the arrival city’s time. Fly east and you “lose” hours – a 7-hour flight from New York to London leaving at 19:00 lands at 07:00 the next morning. Fly west and you gain them, which is how you can land in Los Angeles almost at the same clock time you left Tokyo. This calculator handles the time zones and daylight saving time for you.

How the flight time estimate works

In estimate mode the calculator measures the great-circle distance between the two cities – the shortest route over the Earth’s surface – and assumes an average speed of about 830 km/h (515 mph), plus around 35 minutes for taxiing, take-off and landing. That gives a good guide for a non-stop flight. Real schedules vary with the airline, aircraft, winds and route: flights heading east with the jet stream are often quicker than the same trip heading west, so always check your booking for the exact time.

Frequently asked questions

How long is the flight from London to Seoul?

A direct flight from London to Seoul takes about 11 hours and 15 minutes. This is an estimate based on the distance; airline schedules can be shorter or longer depending on the route and winds.

How far is Seoul from London?

The straight-line (great-circle) distance between London and Seoul is about 8,861 km, or 5,506 miles.

What is the time difference between London and Seoul?

Seoul is 9 hours ahead of London at the moment.

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