Cheap flights from London to Seoul

Q: How much are flights normally?

£ 435. If you see flights from London to Seoul for less than this, you've found a good deal.

Q: When is the best time to book cheap flights?

16 weeks. If you want cheap flights from London to Seoul, this is the best time to book.

Q: What are the cheapest airlines?

China Southern Airlines, Emirates, KLM. These airlines usually offer the cheapest flights from London to Seoul.

Q: What airlines fly indirectly?

Emirates, Qatar Airways, Thai Airways International, Lufthansa, KLM. These airlines fly from London to Seoul, but you’ll have at least one layover.

Q: When is high season?

June. This is the most expensive time to fly to Seoul. If this is when you want to go, book your flight from London in advance.

Q: When is the cheapest time to fly?

May. Flights from London to Seoul are usually cheaper at this time of year.

Q: How long is the flight?

14 hrs 25 mins. This is the shortest flight time from London to Seoul.

Q: How long should I stay in Seoul?

15 days. Most people spend this amount of time in Seoul.

from as little as £433

21 nights in Seoul, departing London Heathrow on 22 / Sep / 2025 with China Southern Airlines (price found 25 hours ago)

Subject to availability, prices correct of the last 24 hours

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Cheap return flights from London to Seoul

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The London / Seoul route

All 8884 km of it

Cheap flight deals for this route

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Seoul flight facts

What you need to know

How much are flights normally?

£ 435

If you see flights from London to Seoul for less than this, you've found a good deal.

When is the best time to book cheap flights?

16 weeks

If you want cheap flights from London to Seoul, this is the best time to book.

What are the cheapest airlines?

China Southern Airlines
Emirates
KLM

These airlines usually offer the cheapest flights from London to Seoul.

What airlines fly indirectly?

Emirates
Qatar Airways
Thai Airways International
Lufthansa
KLM

These airlines fly from London to Seoul, but you’ll have at least one layover.

When is high season?

June

This is the most expensive time to fly to Seoul. If this is when you want to go, book your flight from London in advance.

When is the cheapest time to fly?

Flights from London to Seoul are usually cheaper at this time of year.

How long is the flight?

14 hrs 25 mins

This is the shortest flight time from London to Seoul.

How long should I stay in Seoul?

15 days

Most people spend this amount of time in Seoul.

Alternative flights from the UK to Seoul

Check out prices for other routes

Manchester to Seoul

from £424 pp

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Edinburgh to Seoul

from £654 pp

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Birmingham to Seoul

from £578 pp

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London City Airport to Seoul

from £898 pp

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London Gatwick to Seoul

from £655 pp

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London Heathrow to Seoul

from £433 pp

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London Stansted to Seoul

from £795 pp

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Alternative flights from London to Seoul

You might find cheaper flights nearby

Shanghai from London

from £459 pp

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Beijing from London

from £423 pp

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Tokyo from London

from £612 pp

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Hong Kong from London

from £402 pp

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Manila from London

from £412 pp

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Hanoi from London

from £411 pp

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Today alone, Netflights has searched over 48,823 flights. 22 / Sep / 2025 is currently the lowest priced day of the year to fly the London/Seoul route. There are around 12,295 flights on any given week from the UK to Seoul and the cheapest month to fly right now is September.

Not suitable? Try running another search or viewing all cheap flight deals.

Key facts about Seoul

Currency

South Korean won

Language

Korean

Timezone

9 hrs ahead of GMT

How to get cheap flights from London to Seoul

Tips and advice from our flight experts

Weekly, there are 12,295 flights connecting Seoul to London. We've gone through them all to help you find the right flight for you. If you can't find what you're looking for, consider widening your search by looking at flights from a different airport.

The most popular airlines for this route are Emirates, Qatar Airways & Thai Airways International, while London Heathrow (LHR) is the most popular departure airport in the city. But when you fly is just as important as where you fly from. Search by month to find out when flights are at the priciest and their cheapest.

On average, the 8884 km flight to Seoul takes 18 hrs 55 mins. If you want a bargain, keep an eye out for flights with China Southern Airlines, as they often have good deals. Or you could broaden your search by looking at flights to other airports in South Korea to see if there are any cheaper options.

Today alone, we’ve scanned 48,823 flights worldwide to bring you the best flight deals in one place. Did you know you can also compare car hire and hotel prices in South Korea with Netflights? Take a look to get an idea of prices in Seoul.