Can I get a flight from London Heathrow Airport to Seoul on Asiana Airlines for under £815?

Cheapflights currently has 11 LHR-SEL flights for under £815. Flights to Seoul will vary based on many factors, like date and time. Click here to find the best price for your dates on Cheapflights.

How far ahead should I book a flight from London Heathrow Airport to Seoul with Asiana Airlines?

Booking with Asiana Airlines 70 days in advance of your planned departure date is, on average, the best time to get cheap flights from London Heathrow Airport to Seoul. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from London Heathrow Airport to Seoul with Asiana Airlines?

Currently, the most affordable month to book a Asiana Airlines flight from London Heathrow Airport to Seoul in May, with an average price of £647. Conversely, traveling with Asiana Airlines from London Heathrow Airport to Seoul in July will be the most expensive, with an average cost of £964. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.

£523+ Asiana Airlines Flights from Heathrow to Seoul

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Cheapest Asiana Airlines flights from Heathrow to Seoul
Explore the most affordable Asiana Airlines flight options available from Heathrow to Seoul. Find the lowest fares with prices last updated on 3 August 2026.

Wed 19/816:35

LHR

ICN

Nonstop12h 45m

Asiana Airlines

Mon 14/907:50

ICN

LHR

Nonstop14h 30m

Asiana Airlines

Deal found 30/7£637

Wed 19/816:35

LHR

ICN

Nonstop12h 45m

Asiana Airlines

Tue 15/907:50

ICN

LHR

Nonstop14h 30m

Asiana Airlines

Deal found 30/7£655

Wed 19/816:35

LHR

ICN

Nonstop12h 45m

Asiana Airlines

Wed 2/907:50

ICN

LHR

Nonstop14h 30m

Asiana Airlines

Deal found 2/8£684

Can I get a flight from London Heathrow Airport to Seoul on Asiana Airlines for under £815?
Cheapflights currently has 11 LHR-SEL flights for under £815. Flights to Seoul will vary based on many factors, like date and time. Click here to find the best price for your dates on Cheapflights.

Asiana Airlines flights from Heathrow to Seoul in 2026

One-way from	£523
Return from	£610
Popular in	December
Cheapest in	January
Average price (all airlines)	£752

Asiana Airlines
11/9
Nonstop
12h 45m total
London to Seoul

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Asiana Airlines
16/11-24/11
Nonstop
27h 15m total
London to Seoul

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Highest demand for flights from London Heathrow to Seoul; 10% potential price increase.

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Best time to find cheap flights from London Heathrow to Seoul; 2% potential price drop.

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Average price for all London Heathrow to Seoul flights (one-way and round-trip).

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LHR-SEL

LHR-ICN

Which month is the cheapest to fly Economy class from London Heathrow Airport to Seoul?

For Economy class flights, the cheapest month to fly this route is May. The most expensive months are July and December.

Rainfall in Seoul by month

In terms of precipitation, rainfall in Seoul ranges from 27.0 - 253.0 inches per month. July is typically the wettest month, when rainfall can reach 253.0 mm. December is typically the driest time to visit Seoul when rainfall is around 27.0 mm.

Temperature in Seoul by month

If weather is an important factor for your trip to Seoul, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 25.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).

When is the best time to book a flight to Seoul with Asiana Airlines?

The best time to book a flight to Seoul with Asiana Airlines is 70 days before departure. On average, fares are higher if you book 12 days before departure.

Best time to book a flight from Heathrow to Seoul

Have a flexible travel schedule? Discover the best time to fly to Seoul from Heathrow with our price prediction graph.

LHR-SEL

LHR-ICN

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

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Asiana Airlines flights from London Heathrow Airport to Seoul (LHR - SEL)

Find Asiana Airlines flight deals from Heathrow to Seoul

Cheapest Asiana Airlines flights from Heathrow to SeoulExplore the most affordable Asiana Airlines flight options available from Heathrow to Seoul. Find the lowest fares with prices last updated on 3 August 2026.

Explore the most affordable Asiana Airlines flight options available from Heathrow to Seoul. Find the lowest fares with prices last updated on 3 August 2026.

Best Asiana Airlines flights from Heathrow to SeoulDiscover carefully curated Asiana Airlines flight deals from Heathrow to Seoul that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 3 August 2026.

Discover carefully curated Asiana Airlines flight deals from Heathrow to Seoul that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 3 August 2026.

Direct Asiana Airlines flights from Heathrow to SeoulExplore direct Asiana Airlines flight options from Heathrow to Seoul based on user searches, and compare prices and availability for your desired travel dates. Data last updated 3 August 2026.

Explore direct Asiana Airlines flight options from Heathrow to Seoul based on user searches, and compare prices and availability for your desired travel dates. Data last updated 3 August 2026.

Last-minute Asiana Airlines flights from Heathrow to SeoulDiscover last-minute Asiana Airlines flight deals from Heathrow to Seoul. Data last updated 3 August 2026 and is based on user searches.

Discover last-minute Asiana Airlines flight deals from Heathrow to Seoul. Data last updated 3 August 2026 and is based on user searches.

One-way Asiana Airlines flights to SeoulSearch for one-way Asiana Airlines flight options to Seoul. Find affordable one-way fares based on user searches. Data last updated 3 August 2026.

Search for one-way Asiana Airlines flight options to Seoul. Find affordable one-way fares based on user searches. Data last updated 3 August 2026.

Can I get a flight from London Heathrow Airport to Seoul on Asiana Airlines for under £815?

Asiana Airlines flights from Heathrow to Seoul in 2026

One-way from

Return from

Popular in

Cheapest in

Average price (all airlines)

Which month is the cheapest to fly Economy class from London Heathrow Airport to Seoul?

For Economy class flights, the cheapest month to fly this route is May. The most expensive months are July and December.

Rainfall in Seoul by month

Plan your trip to Seoul by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seoul ranges from 27.0 - 253.0 inches per month. July is typically the wettest month, when rainfall can reach 253.0 mm. December is typically the driest time to visit Seoul when rainfall is around 27.0 mm.

Temperature in Seoul by month

Plan your trip to Seoul by taking into account the average temperature totals by month.

When is the best time to book a flight to Seoul with Asiana Airlines?

The best time to book a flight to Seoul with Asiana Airlines is 70 days before departure. On average, fares are higher if you book 12 days before departure.

Best time to book a flight from Heathrow to Seoul

Have a flexible travel schedule? Discover the best time to fly to Seoul from Heathrow with our price prediction graph.

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly from Heathrow to Seoul on another airline

Consider alternative airlines that service the Seoul area. Flight routes are based on user searches made on Cheapflights and were last updated on 3 August 2026.

Other Asiana Airlines flights from Heathrow

Browse through other Asiana Airlines flights departing from Heathrow. Flight routes are based on user searches made on Cheapflights and were last updated on 3 August 2026.

Complete your trip

Complete your trip to Seoul by adding a car hire and/or hotel booking to your travel itinerary.

Other airlines servicing Heathrow and Seoul

Choose from other airlines serving Heathrow and Seoul.

Other popular destinations in Asia

If Seoul is not for you, choose from these other destinations located in Asia. Flight routes are based on user searches made on Cheapflights and were last updated on 3 August 2026.

Popular flights with Asiana Airlines

Browse through some of the most popular routes that Asiana Airlines offers at this time. Flights are based on user searches made on Cheapflights and were last updated on 3 August 2026.

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Cheapest Asiana Airlines flights from Heathrow to Seoul
Explore the most affordable Asiana Airlines flight options available from Heathrow to Seoul. Find the lowest fares with prices last updated on 3 August 2026.

Best Asiana Airlines flights from Heathrow to Seoul
Discover carefully curated Asiana Airlines flight deals from Heathrow to Seoul that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 3 August 2026.

Direct Asiana Airlines flights from Heathrow to Seoul
Explore direct Asiana Airlines flight options from Heathrow to Seoul based on user searches, and compare prices and availability for your desired travel dates. Data last updated 3 August 2026.

Last-minute Asiana Airlines flights from Heathrow to Seoul
Discover last-minute Asiana Airlines flight deals from Heathrow to Seoul. Data last updated 3 August 2026 and is based on user searches.

One-way Asiana Airlines flights to Seoul
Search for one-way Asiana Airlines flight options to Seoul. Find affordable one-way fares based on user searches. Data last updated 3 August 2026.