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Cheap flights from Incheon Intl Airport to London from £244

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Incheon Intl Airport to London departing on 25/11. 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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Find the cheapest flights from Incheon Intl Airport to London

Cheap return flights

Logo
13:05 - 16:55ICN-LHR
35h 50m1 stop
Logo
21:00 - 11:00LHR-ICN
29h 00m2 stops
£514
Find Deal
Sat, 25 Oct - Sat, 1 Nov
Etihad Airways Logo
01:35 - 15:15ICN-LHR
21h 40m1 stop
Etihad Airways Logo
20:55 - 10:45LHR-ICN
28h 50m1 stop
£515Etihad Airways
Find Deal
Fri, 17 Oct - Fri, 31 Oct
Scandinavian Airlines Logo
23:45 - 09:20ICN-LHR
18h 35m1 stop
Scandinavian Airlines Logo
19:50 - 19:00LHR-ICN
38h 10m2 stops
£516Scandinavian Airlines
Find Deal
Wed, 12 Nov - Wed, 26 Nov
Logo
00:10 - 16:35ICN-LHR
24h 25m1 stop
Logo
22:00 - 20:10LHR-ICN
38h 10m2 stops
£517
Find Deal
Sat, 11 Oct - Mon, 20 Oct
Scandinavian Airlines Logo
23:45 - 14:35ICN-LHR
22h 50m2 stops
Scandinavian Airlines Logo
15:35 - 19:00LHR-ICN
42h 25m2 stops
£518Scandinavian Airlines
Find Deal
Wed, 22 Oct - Sat, 1 Nov
China Eastern Logo
16:35 - 18:40ICN-LHR
34h 05m1 stop
China Eastern Logo
21:20 - 11:55LHR-ICN
30h 35m1 stop
£521China Eastern
Find Deal
Mon, 29 Sep - Sun, 5 Oct
China Eastern Logo
12:55 - 18:40ICN-LHR
37h 45m1 stop
China Eastern Logo
21:20 - 15:25LHR-ICN
34h 05m1 stop
£529China Eastern
Find Deal
Tue, 30 Sep - Mon, 13 Oct
Asiana Airlines Logo
12:25 - 18:05ICN-LHR
14h 40mdirect
Asiana Airlines Logo
20:10 - 17:45LHR-ICN
12h 35mdirect
£535Asiana Airlines
Find Deal
Fri, 21 Nov - Fri, 28 Nov
Asiana Airlines Logo
12:25 - 18:05ICN-LHR
14h 40mdirect
Asiana Airlines Logo
20:10 - 17:45LHR-ICN
12h 35mdirect
£546Asiana Airlines
Find Deal
Mon, 26 Jan - Wed, 11 Feb
Air China Logo
14:55 - 20:15ICN-LHR
37h 20m1 stop
Air China Logo
22:00 - 13:10LHR-ICN
31h 10m2 stops
£549Air China
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Mon, 13 Oct - Sat, 18 Oct

Scandinavian Airlines flights from Incheon Intl Airport to London Heathrow Airport

Our best Scandinavian Airlines deals on Incheon Intl Airport to London Heathrow Airport flight tickets
Scandinavian Airlines
12 Nov
ICN23:45Incheon Intl
18h 35m
1 stop
LHR09:20London Heathrow
26 Nov
LHR19:50London Heathrow
38h 10m
2 stops
ICN19:00Incheon Intl
£516
Find similar
Scandinavian Airlines
22 Oct
ICN23:45Incheon Intl
22h 50m
2 stops
LHR14:35London Heathrow
1 Nov
LHR15:35London Heathrow
42h 25m
2 stops
ICN19:00Incheon Intl
£518
Find similar
Scandinavian Airlines
3 Nov
ICN23:45Incheon Intl
23h 50m
2 stops
LHR14:35London Heathrow
10 Nov
LHR19:50London Heathrow
38h 10m
2 stops
ICN19:00Incheon Intl
£519
Find similar

Lufthansa flights from Incheon Intl Airport to London Heathrow Airport

Our best Lufthansa deals on Incheon Intl Airport to London Heathrow Airport flight tickets
Lufthansa
19 Jan
ICN13:05Incheon Intl
16h 45m
1 stop
LHR20:50London Heathrow
23 Jan
LHR11:30London Heathrow
14h 20m
1 stop
ICN10:50Incheon Intl
£523
Find similar
Lufthansa
3 Mar
ICN13:05Incheon Intl
16h 45m
1 stop
LHR20:50London Heathrow
5 Mar
LHR07:30London Heathrow
18h 20m
1 stop
ICN10:50Incheon Intl
£523
Find similar
Lufthansa
8 Feb
ICN13:05Incheon Intl
28h 00m
2 stops
LHR08:05London Heathrow
17 Feb
LHR07:40London Heathrow
18h 35m
1 stop
ICN11:15Incheon Intl
£529
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Incheon Intl Airport to London Heathrow 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 12 September 2025.
Use the filters below to find and compare flights from Incheon Intl Airport to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Sat 25/10

13:05-16:55

1 stop35h 50m

London Heathrow

Sat 1/11

21:00-11:00

2 stops29h 00m

£514

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Fri 17/10

01:35-15:15

1 stop21h 40m

London Heathrow

Fri 31/10

20:55-10:45

1 stop28h 50m

£515

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Wed 12/11

23:45-09:20

1 stop18h 35m

London Heathrow

Wed 26/11

19:50-19:00

2 stops38h 10m

£516

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Sat 11/10

00:10-16:35

1 stop24h 25m

London Heathrow

Mon 20/10

22:00-20:10

2 stops38h 10m

£517

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Wed 22/10

23:45-14:35

2 stops22h 50m

London Heathrow

Sat 1/11

15:35-19:00

2 stops42h 25m

£518

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Mon 29/9

16:35-18:40

1 stop34h 05m

London Heathrow

Sun 5/10

21:20-11:55

1 stop30h 35m

£521

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Tue 30/9

12:55-18:40

1 stop37h 45m

London Heathrow

Mon 13/10

21:20-15:25

1 stop34h 05m

£529

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Fri 21/11

12:25-18:05

Nonstop14h 40m

London Heathrow

Fri 28/11

20:10-17:45

Nonstop12h 35m

£535

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Mon 26/1

12:25-18:05

Nonstop14h 40m

London Heathrow

Wed 11/2

20:10-17:45

Nonstop12h 35m

£546

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Mon 13/10

14:55-20:15

1 stop37h 20m

London Heathrow

Sat 18/10

22:00-13:10

2 stops31h 10m

£549

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 London from

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

In general, November is the cheapest month to fly from Incheon Intl Airport to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £494. The month of March is another great option to travel to London Heathrow Airport, with average flight prices from Incheon Intl Airport averaging around £537.

What is the cheapest day to depart on your flight to London Heathrow Airport?

On average, the least expensive day to fly to London Heathrow Airport from Incheon Intl Airport is on a Thursday. momondo users have found tickets for Thursday departures for as low as £667. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Saturday is £845.

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the evening. momondo users have found flights departing from Incheon Intl Airport to London Heathrow Airport in the evening for as low as £501. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying at midday when prices are £818 on average. Flights to London Heathrow Airport from Incheon Intl Airport at midday are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest Incheon Intl to London Heathrow flight route?

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

How far in advance should I book a flight to London Heathrow Airport?

You are more likely to see cheaper flights to London Heathrow Airport from Incheon Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £633 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Incheon Intl Airport for as low as £543 on momondo.

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

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

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

As of September 2025, prices for Incheon Intl Airport to London Heathrow Airport flights are approximately 31% cheaper when compared to flights at the same time last year.

When to book flights from Incheon Intl Airport to London Heathrow Airport

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

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

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

Best price found

£422

Fastest flight time

14h 25m

Direct flights

Every day
The best one-way flight to London Heathrow Airport from Incheon Intl Airport in the past 72 hours is £422. The best return flight deal from Incheon Intl Airport to London Heathrow Airport found on momondo in the last 72 hours is £972.
The fastest flight from Incheon Intl Airport to London Heathrow Airport takes 14h 25m
Direct flights go from Incheon Intl Airport to London Heathrow Airport every day.
Search flight deals

  • How far is Incheon Intl to London Heathrow by plane?

    The straight-line distance from Incheon Intl to London Heathrow is 5503.3 mi. A reasonable flight in good conditions will take 14h 40m.

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

    Prices for flights from Incheon Intl Airport to London Heathrow Airport refresh daily.

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Incheon Intl Airport to London Heathrow Airport.

  • What documentation or ID do you need to fly to London Heathrow Airport?

    The travel and health documents required for your trip to London Heathrow 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 London Heathrow 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 Incheon Intl Airport to London Heathrow Airport?

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

Best airlines flying from Incheon Intl Airport to London Heathrow Airport

Compare and see reviews for airlines that fly from Incheon Intl Airport to London Heathrow Airport with momondo
Airline
Rating
Free Cancellation
Price
China EasternPriceFrom £351Free CancellationRating
7.2
165 reviews
Search China Eastern flights
Air ChinaPriceFrom £399Free CancellationRating
7.2
99 reviews
Search Air China flights
Asiana AirlinesPriceFrom £641Free CancellationRating
8.2
479 reviews
Search Asiana Airlines flights
Korean AirPriceFrom £665Free CancellationRating
8.4
1,139 reviews
Search Korean Air flights

  • Korean Air Flights From Incheon Intl Airport to London Heathrow Airport

    Korean Air flight deals from Incheon Intl Airport to London Heathrow Airport start from £901 round-trip. Over the 7 Korean Air flights for this route in a normal week, average airfare is usually £1,136 round-trip - but some users have found much cheaper deals with momondo.

  • Asiana Airlines Flights From Incheon Intl Airport to London Heathrow Airport

    £869 is the best Asiana Airlines flight deal from Incheon Intl Airport to London Heathrow Airport found on momondo over the last 72 hours. The average Asiana Airlines ticket price found was closer to £1,002, however, with flight time and availability significantly affecting the price. Asiana Airlines (8.2/10 from 479 user reviews) flies into London Heathrow Airport from Incheon Intl Airport 7 times in an average week so prices can vary.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
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Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Seoul to London. momondo saves you time and could save you money on your trip.

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

Yes. momondo allows you to filter the results for Seoul to London flights to just show those with flexible booking policies.

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

Once you have performed a search for Seoul to London flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are not ready to book a flight from Seoul to London now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to London and let you know when they change.

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