Cheap flights from Incheon Intl Airport to London from $334

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 11/15. 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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Cheap round-trip flights

Scandinavian Airlines Logo
11:45 pm - 4:00 pmICN-LHR
25h 15m1 stop
Scandinavian Airlines Logo
7:50 pm - 7:00 pmLHR-ICN
38h 10m2 stops
$700Scandinavian Airlines
Find Deal
Mon, Nov 24 - Mon, Dec 1
Scandinavian Airlines Logo
11:45 pm - 2:35 pmICN-LHR
23h 50m2 stops
Scandinavian Airlines Logo
7:50 pm - 7:00 pmLHR-ICN
38h 10m2 stops
$703Scandinavian Airlines
Find Deal
Mon, Nov 3 - Mon, Nov 10
Lufthansa Logo
1:30 pm - 10:55 pmICN-LHR
18h 25m1 stop
Lufthansa Logo
7:40 am - 10:50 amLHR-ICN
18h 10m2 stops
$712Lufthansa
Find Deal
Sun, Feb 8 - Wed, Feb 18
 Logo
12:45 pm - 6:35 amICN-LGW
25h 50m2 stops
 Logo
10:30 am - 9:10 pmLGW-ICN
25h 40m2 stops
Fri, Oct 10 - Tue, Dec 2
Lufthansa Logo
1:05 pm - 8:05 amICN-LHR
28h 00m2 stops
Lufthansa Logo
8:45 am - 11:15 amLHR-ICN
17h 30m1 stop
$714Lufthansa
Find Deal
Mon, Jan 26 - Fri, Jan 30
Lufthansa Logo
1:05 pm - 8:05 amICN-LHR
28h 00m2 stops
Lufthansa Logo
7:40 am - 11:15 amLHR-ICN
18h 35m1 stop
$715Lufthansa
Find Deal
Thu, Feb 19 - Tue, Feb 24
 Logo
11:05 pm - 7:40 amICN-LHR
17h 35m1 stop
 Logo
9:00 am - 10:30 amLHR-ICN
16h 30m1 stop
Sun, Dec 28 - Thu, Jan 1
China Eastern Logo
6:25 pm - 6:30 amICN-LGW
20h 05m1 stop
China Eastern Logo
11:35 am - 3:20 pmLGW-ICN
19h 45m1 stop
$760China Eastern
Find Deal
Thu, Oct 9 - Tue, Oct 14
China Eastern Logo
4:35 pm - 6:30 amICN-LGW
21h 55m1 stop
China Eastern Logo
10:30 am - 3:05 pmLGW-ICN
19h 35m1 stop
$818China Eastern
Find Deal
Sat, Sep 27 - Tue, Dec 9
Air China Logo
1:05 pm - 6:35 amICN-LGW
25h 30m1 stop
Air China Logo
12:35 pm - 4:35 pmLGW-ICN
20h 00m1 stop
$852Air China
Find Deal
Mon, Oct 13 - Fri, Oct 17

Scandinavian Airlines flights from Incheon Intl Airport to London

Our best Scandinavian Airlines deals on Incheon Intl Airport to London flight tickets
Scandinavian Airlines
Nov 24
ICN11:45 pmIncheon Intl
25h 15m
1 stop
LHR4:00 pmLondon Heathrow
Dec 1
LHR7:50 pmLondon Heathrow
38h 10m
2 stops
ICN7:00 pmIncheon Intl
Scandinavian Airlines
Nov 3
ICN11:45 pmIncheon Intl
23h 50m
2 stops
LHR2:35 pmLondon Heathrow
Nov 10
LHR7:50 pmLondon Heathrow
38h 10m
2 stops
ICN7:00 pmIncheon Intl
Scandinavian Airlines
Dec 26
ICN11:45 pmIncheon Intl
18h 35m
1 stop
LHR9:20 amLondon Heathrow
Jan 1
LHR10:20 amLondon Heathrow
23h 40m
1 stop
ICN7:00 pmIncheon Intl

Lufthansa flights from Incheon Intl Airport to London

Our best Lufthansa deals on Incheon Intl Airport to London flight tickets
Lufthansa
Feb 8
ICN1:30 pmIncheon Intl
18h 25m
1 stop
LHR10:55 pmLondon Heathrow
Feb 18
LHR7:40 amLondon Heathrow
18h 10m
2 stops
ICN10:50 amIncheon Intl
Lufthansa
Jan 26
ICN1:05 pmIncheon Intl
28h 00m
2 stops
LHR8:05 amLondon Heathrow
Jan 30
LHR8:45 amLondon Heathrow
17h 30m
1 stop
ICN11:15 amIncheon Intl
Lufthansa
Feb 19
ICN1:05 pmIncheon Intl
28h 00m
2 stops
LHR8:05 amLondon Heathrow
Feb 24
LHR7:40 amLondon Heathrow
18h 35m
1 stop
ICN11:15 amIncheon Intl

momondo Fare Finder

 
Customize your flight search to find flights from Incheon Intl Airport to London 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 832,500 searches. Data last updated September 11, 2025.
Use the filters below to find and compare flights from Incheon Intl Airport to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Mon 11/24

11:45 pm-4:00 pm

1 stop25h 15m

London Heathrow

Mon 12/1

7:50 pm-7:00 pm

2 stops38h 10m

$700

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Mon 11/3

11:45 pm-2:35 pm

2 stops23h 50m

London Heathrow

Mon 11/10

7:50 pm-7:00 pm

2 stops38h 10m

$703

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Sun 2/8

1:30 pm-10:55 pm

1 stop18h 25m

London Heathrow

Wed 2/18

7:40 am-10:50 am

2 stops18h 10m

$712

IncheonLondon

ICN - LGW

ICNLGW

Incheon Intl

Fri 10/10

12:45 pm-6:35 am

2 stops25h 50m

London Gatwick

Tue 12/2

10:30 am-9:10 pm

2 stops25h 40m

$712

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Mon 1/26

1:05 pm-8:05 am

2 stops28h 00m

London Heathrow

Fri 1/30

8:45 am-11:15 am

1 stop17h 30m

$714

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Thu 2/19

1:05 pm-8:05 am

2 stops28h 00m

London Heathrow

Tue 2/24

7:40 am-11:15 am

1 stop18h 35m

$715

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Sun 12/28

11:05 pm-7:40 am

1 stop17h 35m

London Heathrow

Thu 1/1

9:00 am-10:30 am

1 stop16h 30m

$728

IncheonLondon

ICN - LGW

ICNLGW

Incheon Intl

Thu 10/9

6:25 pm-6:30 am

1 stop20h 05m

London Gatwick

Tue 10/14

11:35 am-3:20 pm

1 stop19h 45m

$760

IncheonLondon

ICN - LGW

ICNLGW

Incheon Intl

Sat 9/27

4:35 pm-6:30 am

1 stop21h 55m

London Gatwick

Tue 12/9

10:30 am-3:05 pm

1 stop19h 35m

$818

IncheonLondon

ICN - LGW

ICNLGW

Incheon Intl

Mon 10/13

1:05 pm-6:35 am

1 stop25h 30m

London Gatwick

Fri 10/17

12:35 pm-4:35 pm

1 stop20h 00m

$852

Flights are sorted by cheapest round-trip 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

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 typical price of a round-trip flight between Incheon Intl Airport and London?

What is the cheapest month to fly to London?

The cheapest month to fly to London from Incheon Intl Airport is in May. Flight prices, which tend to average around $573, are often lower during this time because this is during the off-season. The month of November is another great option to travel to London, with average flight prices from Incheon Intl Airport averaging around $611.

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

The cheapest day to depart from Incheon Intl Airport to London is on a Monday. Travelers who choose to depart for London on a Monday will often find tickets for as low as $978. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around $1,101. These prices are subject to change though, so be sure to set up a Price Alert for flights to London.

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

Flying to London from Incheon Intl Airport in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $541 when looking at flights departing in the afternoon. Flights to London are more costly at noon, with an average ticket price of $1,076. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Incheon Intl to London flight route?

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

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

You are more likely to see cheaper flights to London from Incheon Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around $857 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Incheon Intl Airport for as low as $735 on momondo.

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

There are 2 cabin classes available to choose from on Incheon Intl to London 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 flight prices changed over time?

As of September 2025, prices for Incheon Intl Airport to London flights are approximately 30% cheaper when compared to flights at the same time last year.

When to book flights from Incheon Intl Airport to London

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

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

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

Best Price Found

$660

Fastest flight time

14h 25m

Direct flights

Every day

Airports in London

1 airport
The best one-way flight to London from Incheon Intl Airport in the past 72 hours is $660. The best round-trip flight deal from Incheon Intl Airport to London found on momondo in the last 72 hours is $920.
The fastest flight from Incheon Intl Airport to London takes 14h 25m
Direct flights go from Incheon Intl Airport to London every day.
There is 1 airport near London: London Heathrow (LHR)
  • How far is Incheon Intl to London by plane?

    A flight from Incheon Intl to London will travel around 5492.6 mi. 16h 00m is a normal flight duration for this route.

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

    Prices for flights from Incheon Intl Airport to London are updated daily.

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

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

    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.

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

    The necessary travel and health documents for your London trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

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

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

Best airlines flying from Incheon Intl Airport to London

Compare and see reviews for airlines that fly from Incheon Intl Airport to London with momondo
Airline
Rating
Free Cancellation
Price
Air ChinaPriceFrom $580Free CancellationRating
7.2
99 reviews
Search Air China flights
Etihad AirwaysPriceFrom $672Free CancellationRating
7.4
1,250 reviews
Search Etihad Airways flights
LufthansaPriceFrom $734Free CancellationRating
6.8
7,409 reviews
Search Lufthansa flights
Asiana AirlinesPriceFrom $822Free CancellationRating
8.2
479 reviews
Search Asiana Airlines flights
Korean AirPriceFrom $847Free CancellationRating
8.4
1,139 reviews
Search Korean Air flights
  • Korean Air Flights From Incheon Intl Airport to London

    Korean Air flight deals from Incheon Intl Airport to London start from $847 round-trip. Over the 7 Korean Air flights for this route in a normal week, average airfare is usually $1,098 round-trip - but some users have found much cheaper deals with momondo.

  • Asiana Airlines Flights From Incheon Intl Airport to London

    $822 is the best Asiana Airlines flight deal from Incheon Intl Airport to London found on momondo over the last 72 hours. The average Asiana Airlines ticket price found was closer to $973, however, with flight time and availability significantly affecting the price. Asiana Airlines (8.2/10 from 479 user reviews) flies into London from Incheon Intl Airport 7 times in an average week so prices can vary.

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Gatwick
Hounslow
Dover
Luton
Slough
Milton Keynes
Hayes
Guildford
Dartford
Crawley
Stansted
Chelmsford
Brentwood
Ilford
Folkestone
Colchester
Watford
Richmond
Canterbury
Wembley

Why use momondo?

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

momondo does allow users to show only those flights to London from Seoul which offer a flexible booking policy as well as other useful filters and features.

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

momondo helps you find the best flight between Seoul and London 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 Seoul to London right now. Can momondo alert me if prices change?

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

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1 adult
Sat 10/11
Sat 10/18

Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London