Cheap flights from London Heathrow to Seoul

from as little as £433

21 nights in Seoul, departing London Heathrow on 23 / Sep / 2025 with China Southern Airlines (price found 42 hours ago)

Subject to availability, prices correct of the last 24 hours
Seoul

The London Heathrow / Seoul route

All 8868 km of it

Cheap flight deals for this route

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Seoul flight facts

What you need to know

Alternative flights from the UK to Seoul

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Seoul

Today alone, Netflights has searched over 48,823 flights. 23 / Sep / 2025 is currently the lowest priced day of the year to fly the London Heathrow/Seoul route. There are around 11,992 flights on any given week from the UK to Seoul and the cheapest month to fly right now is September.

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Key facts about Seoul

How to get cheap flights from London Heathrow to Seoul

Tips and advice from our flight experts

If you're looking to fly from London Heathrow to Seoul, you might like to know that 23 / Sep / 2025 currently has the cheapest flights. At the moment, there are 16 airlines flying to Seoul. Go through the results to find the right flights for you – you can adjust the filters to see find even more flights to Seoul.

Emirates is the most popular airline that flies from London Heathrow to Seoul. But it's still worth looking at other options, as there are 11,992 flights to Seoul every week. If you want to broaden your search, look at flights departing from other airports.

The distance between London Heathrow to Seoul is 8868 km. Normally, it takes about 19 hrs 40 mins to fly, and you can definitely expect the journey to be at least 14 hrs 25 mins. You can see the various flight times in the results.

November is normally the cheapest month to fly to Seoul, but it’s important to try different options when you search. Searching by month, for instance, will show you the best time of the week to fly. September is always the most expensive time to fly but, if you check regularly and book early, you have a better chance of getting a good deal.

Other popular destinations near Seoul

Where other people are flying to

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