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Cheap flights from London to Seoul from £284

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London to Seoul departing on 12/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap return flights

Air China Logo
17:40 - 13:45LHR-ICN
35h 05m1 stop
Air China Logo
11:10 - 17:50ICN-LHR
15h 40m1 stop
£378Air China
Find Deal
Wed, 29 Oct - Thu, 27 Nov
Air China Logo
21:35 - 12:55LHR-ICN
30h 20m1 stop
Air China Logo
13:05 - 20:30ICN-LHR
15h 25m1 stop
£379Air China
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Sat, 7 Mar - Tue, 31 Mar
China Eastern Logo
10:30 - 20:40LGW-ICN
25h 10m2 stops
China Eastern Logo
16:20 - 06:30ICN-LGW
23h 10m1 stop
£380China Eastern
Find Deal
Mon, 3 Nov - Sat, 15 Nov
China Eastern Logo
11:35 - 14:55LGW-ICN
19h 20m2 stops
China Eastern Logo
16:35 - 06:30ICN-LGW
21h 55m2 stops
£381China Eastern
Find Deal
Mon, 13 Oct - Mon, 20 Oct
China Southern Logo
21:00 - 22:10LHR-ICN
17h 10m1 stop
China Southern Logo
09:25 - 17:55ICN-LHR
17h 30m1 stop
£384China Southern
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Thu, 23 Oct - Tue, 4 Nov
China Southern Logo
21:30 - 22:25LHR-ICN
15h 55m1 stop
China Southern Logo
10:55 - 18:35ICN-LHR
40h 40m1 stop
£392China Southern
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Mon, 3 Nov - Mon, 17 Nov
LOT Logo
10:35 - 07:10LHR-ICN
35h 35m1 stop
LOT Logo
08:50 - 09:35ICN-LHR
33h 45m1 stop
£392LOT
Find Deal
Wed, 3 Dec - Mon, 15 Dec
LOT Logo
18:20 - 11:45LHR-ICN
32h 25m1 stop
LOT Logo
13:25 - 09:35ICN-LHR
29h 10m1 stop
£393LOT
Find Deal
Sun, 1 Feb - Sat, 28 Feb
Lufthansa Logo
09:40 - 10:50LCY-ICN
16h 10m1 stop
Lufthansa Logo
13:05 - 09:20ICN-LCY
29h 15m1 stop
£493Lufthansa
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Thu, 4 Dec - Thu, 11 Dec
Lufthansa Logo
09:50 - 10:50LCY-ICN
16h 00m1 stop
Lufthansa Logo
13:05 - 09:15ICN-LCY
29h 10m1 stop
£519Lufthansa
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Mon, 2 Mar - Sun, 22 Mar

China Southern flights from London to Incheon Intl Airport

Our best China Southern deals on London to Incheon Intl Airport flight tickets
China Southern
23 Oct
LHR21:00London Heathrow
17h 10m
1 stop
ICN22:10Incheon Intl
4 Nov
ICN09:25Incheon Intl
17h 30m
1 stop
LHR17:55London Heathrow
£384
Find similar
China Southern
3 Nov
LHR21:30London Heathrow
15h 55m
1 stop
ICN22:25Incheon Intl
17 Nov
ICN10:55Incheon Intl
40h 40m
1 stop
LHR18:35London Heathrow
£392
Find similar
China Southern
24 Sept
LHR22:10London Heathrow
33h 15m
1 stop
ICN15:25Incheon Intl
20 Oct
ICN15:15Incheon Intl
35h 45m
1 stop
LHR19:00London Heathrow
£392
Find similar

LOT flights from London to Incheon Intl Airport

Our best LOT deals on London to Incheon Intl Airport flight tickets
LOT
3 Dec
LHR10:35London Heathrow
35h 35m
1 stop
ICN07:10Incheon Intl
15 Dec
ICN08:50Incheon Intl
33h 45m
1 stop
LHR09:35London Heathrow
£392
Find similar
LOT
1 Feb
LHR18:20London Heathrow
32h 25m
1 stop
ICN11:45Incheon Intl
28 Feb
ICN13:25Incheon Intl
29h 10m
1 stop
LHR09:35London Heathrow
£393
Find similar
LOT
14 Nov
LHR06:30London Heathrow
20h 15m
1 stop
ICN11:45Incheon Intl
21 Nov
ICN08:50Incheon Intl
22h 10m
1 stop
LHR22:00London Heathrow
£399
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from London to Incheon Intl Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 279,928 searches. Data last updated 17 September 2025.
Use the filters below to find and compare flights from London to Incheon Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Wed 29/10

17:40-13:45

1 stop35h 05m

Incheon Intl

Thu 27/11

11:10-17:50

1 stop15h 40m

£378

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Sat 7/3

21:35-12:55

1 stop30h 20m

Incheon Intl

Tue 31/3

13:05-20:30

1 stop15h 25m

£379

LondonIncheon

LGW - ICN

LGWICN

London Gatwick

Mon 3/11

10:30-20:40

2 stops25h 10m

Incheon Intl

Sat 15/11

16:20-06:30

1 stop23h 10m

£380

LondonIncheon

LGW - ICN

LGWICN

London Gatwick

Mon 13/10

11:35-14:55

2 stops19h 20m

Incheon Intl

Mon 20/10

16:35-06:30

2 stops21h 55m

£381

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Thu 23/10

21:00-22:10

1 stop17h 10m

Incheon Intl

Tue 4/11

09:25-17:55

1 stop17h 30m

£384

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Mon 3/11

21:30-22:25

1 stop15h 55m

Incheon Intl

Mon 17/11

10:55-18:35

1 stop40h 40m

£392

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Wed 3/12

10:35-07:10

1 stop35h 35m

Incheon Intl

Mon 15/12

08:50-09:35

1 stop33h 45m

£392

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Sun 1/2

18:20-11:45

1 stop32h 25m

Incheon Intl

Sat 28/2

13:25-09:35

1 stop29h 10m

£393

LondonIncheon

LCY - ICN

LCYICN

London City

Thu 4/12

09:40-10:50

1 stop16h 10m

Incheon Intl

Thu 11/12

13:05-09:20

1 stop29h 15m

£493

LondonIncheon

LCY - ICN

LCYICN

London City

Mon 2/3

09:50-10:50

1 stop16h 00m

Incheon Intl

Sun 22/3

13:05-09:15

1 stop29h 10m

£519

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Seoul from

How to get the cheapest flight ticket from London to Incheon Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Incheon Intl Airport?

The cheapest month to fly to Incheon Intl Airport from London is in November. Flight prices, which tend to average around £432, are often lower during this time because this is during the off-season. If you aren’t able to travel to Incheon Intl Airport during the month of November, then flying in February is also cheap. Prices for this month can be found on momondo for an average of £461.

What is the cheapest day to depart on your flight to Incheon Intl Airport?

Our data shows that Tuesday is the least expensive day to fly to Incheon Intl Airport. Tickets to fly out on this day can be as low as £864. The most expensive day to fly to Incheon Intl Airport is Saturday, with ticket prices averaging around £987.

What is the cheapest time of day to depart on your flight to Incheon Intl Airport?

Our most recent data shows that the best time of day to fly to Incheon Intl Airport is at midday. Flights from London to Incheon Intl Airport during this time can be as low as £725. In contrast, the most expensive time of day to depart to Incheon Intl Airport is in the afternoon when prices are around £1,004.

What is the cheapest London to Incheon Intl flight route?

Fly from London Heathrow to Incheon Intl for the best London - Incheon Intl flight prices

How far in advance should I book a flight to Incheon Intl Airport?

You are more likely to see cheaper flights to Incheon Intl Airport from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Incheon Intl Airport for around £678 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Incheon Intl Airport from London for as low as £641 on momondo.

What cabin class options are available on London to Incheon Intl flights?

There are 4 cabin classes available to choose from on London to Incheon Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on London to Incheon Intl Airport flights?

You could potentially save up to 21% on your flight if you consider stops on a London to Incheon Intl Airport flight.

How have London to Incheon Intl Airport flight prices changed over time?

As of September 2025, prices for London to Incheon Intl Airport flights are approximately 33% cheaper when compared to flights at the same time last year.

When to book flights from London to Incheon Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from London to Incheon Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap London to Incheon Intl Airport (LON to ICN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London to Incheon Intl Airport

Best price found

£512

Fastest flight time

12h 35m

Direct flights

Every day
The best one-way flight to Incheon Intl Airport from London in the past 72 hours is £512. The best return flight deal from London to Incheon Intl Airport found on momondo in the last 72 hours is £848.
The fastest flight from London to Incheon Intl Airport takes 12h 35m
Direct flights go from London to Incheon Intl Airport every day.
Search flight deals

  • How far is London to Incheon Intl by plane?

    The distance between London and Incheon Intl is about 5492.6 mi. 13h 55m is a normal flight duration for this route.

  • When did momondo last update prices for flights from London to Incheon Intl Airport?

    Prices for flights from London to Incheon Intl Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from London to Incheon Intl Airport?

  • How old do you have to be to fly from London to Incheon Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London to Incheon Intl Airport.

  • What documentation or ID do you need to fly to Incheon Intl Airport?

    The travel and health documents required for your trip to Incheon Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Incheon Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from London to Incheon Intl Airport?

  • What is the most popular airline from London to Incheon Intl Airport?

Best airlines flying from London to Incheon Intl Airport

Compare and see reviews for airlines that fly from London to Incheon Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
China EasternPriceFrom £300Free CancellationRating
7.2
166 reviews
Search China Eastern flights
China SouthernPriceFrom £325Free CancellationRating
7.5
110 reviews
Search China Southern flights
Air ChinaPriceFrom £341Free CancellationRating
7.3
101 reviews
Search Air China flights
Shenzhen AirlinesPriceFrom £416Free CancellationRating
7.5
20 reviews
Search Shenzhen Airlines flights
LufthansaPriceFrom £424Free CancellationRating
6.8
7,407 reviews
Search Lufthansa flights
LOTPriceFrom £515Free CancellationRating
7.6
1,114 reviews
Search LOT flights
Etihad AirwaysPriceFrom £530Free CancellationRating
7.4
1,250 reviews
Search Etihad Airways flights
Air FrancePriceFrom £535Free CancellationRating
7.4
1,468 reviews
Search Air France flights
Turkish AirlinesPriceFrom £535Free CancellationRating
7.3
3,968 reviews
Search Turkish Airlines flights
FinnairPriceFrom £538Free CancellationRating
7.6
1,324 reviews
Search Finnair flights

  • Korean Air Flights From London to Incheon Intl Airport

    Korean Air operates around 7 flights from London to Incheon Intl Airport every week. The average price of these flights found in the last 72 hours has been £1,158, but momondo users have found Korean Air deals from London to Incheon Intl Airport from as low as £995 round-trip. Korean Air has been scored 8.4/10 in 1,140 reviews.

  • Asiana Airlines Flights From London to Incheon Intl Airport

    The best Asiana Airlines deal for London to Incheon Intl Airport flight tickets found on momondo in the last 72 hours was £941, round-trip. It should be noted that an average Asiana Airlines flight deal for this route in this time was higher, at £1,125 round-trip. Asiana Airlines operates 7 flights out of London into Incheon Intl Airport in an average week, so prices vary by time and availability. 480 Asiana Airlines reviews by users on momondo have scored the airline at 8.2/10.

Travelling to a place near Seoul?

Book flights to Seoul if you plan to visit one of these locations
Daejeon
Seongnam

Why use momondo?

Why should I use momondo to find a flight deal from London to Seoul?

It is quick and easy to find London to Seoul flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Seoul that suits you.

Can I find flights from London to Seoul with flexible booking policies on momondo?

Flights from London to Seoul with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from London to Seoul?

momondo helps you find the best flight between London and Seoul by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from London to Seoul right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Seoul, momondo offers a useful price alert feature which will track prices for flights to Seoul from London and alert you when they change.

An easier way to manage your Incheon Intl Airport trip

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