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Cheap flights from Incheon Intl Airport to London from $280

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 12/4. 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 round-trip flights

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Multiple Airlines Logo
2:35 pm - 3:55 pmICN-LHR
34h 20m1 stop
Multiple Airlines Logo
9:10 pm - 1:55 pmLHR-ICN
31h 45m1 stop
$662Multiple Airlines
Find Deal
Wed, Dec 24 - Mon, Dec 29
China Eastern Logo
4:05 pm - 6:30 amICN-LGW
23h 25m2 stops
China Eastern Logo
10:30 am - 3:05 pmLGW-ICN
19h 35m1 stop
$662China Eastern
Find Deal
Thu, Nov 27 - Tue, Dec 2
Scandinavian Airlines Logo
11:45 pm - 4:25 pmICN-LHR
25h 40m2 stops
Scandinavian Airlines Logo
9:05 pm - 7:00 pmLHR-ICN
36h 55m2 stops
$663Scandinavian Airlines
Find Deal
Mon, Dec 1 - Mon, Dec 8
Scandinavian Airlines Logo
11:45 pm - 9:20 amICN-LHR
18h 35m1 stop
Scandinavian Airlines Logo
7:30 pm - 7:00 pmLHR-ICN
14h 30m1 stop
$664Scandinavian Airlines
Find Deal
Mon, Feb 16 - Tue, Feb 24
Asiana Airlines Logo
12:25 pm - 6:05 pmICN-LHR
14h 40mnonstop
Asiana Airlines Logo
8:10 pm - 5:50 pmLHR-ICN
12h 40mnonstop
$668Asiana Airlines
Find Deal
Thu, Nov 27 - Wed, Dec 3
Asiana Airlines Logo
12:25 pm - 6:05 pmICN-LHR
14h 40mnonstop
Asiana Airlines Logo
8:10 pm - 5:50 pmLHR-ICN
12h 40mnonstop
$669Asiana Airlines
Find Deal
Thu, Nov 27 - Wed, Dec 3
China Southern Logo
9:25 am - 5:55 pmICN-LHR
17h 30m1 stop
China Southern Logo
9:30 pm - 10:15 pmLHR-ICN
15h 45m1 stop
$675China Southern
Find Deal
Fri, Dec 19 - Sun, Dec 28
China Southern Logo
9:25 am - 6:35 pmICN-LHR
18h 10m1 stop
China Southern Logo
9:30 pm - 10:15 pmLHR-ICN
15h 45m1 stop
$690China Southern
Find Deal
Sat, Dec 20 - Sun, Dec 28
Air China Logo
1:10 pm - 5:35 amICN-LGW
25h 25m1 stop
Air China Logo
11:35 am - 4:35 pmLGW-ICN
20h 00m1 stop
$700Air China
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Sat, Dec 20 - Wed, Jan 7
Air China Logo
11:10 am - 5:50 pmICN-LHR
15h 40m1 stop
Air China Logo
5:40 pm - 9:55 pmLHR-ICN
19h 15m1 stop
$705Air China
Find Deal
Sat, Dec 27 - Fri, Jan 2

Scandinavian Airlines flights from Incheon Intl Airport to London

Our best Scandinavian Airlines deals on Incheon Intl Airport to London flight tickets
Scandinavian Airlines
Dec 1
ICN11:45 pmIncheon Intl
25h 40m
2 stops
LHR4:25 pmLondon Heathrow
Dec 8
LHR9:05 pmLondon Heathrow
36h 55m
2 stops
ICN7:00 pmIncheon Intl
$663
Find similar
Scandinavian Airlines
Feb 16
ICN11:45 pmIncheon Intl
18h 35m
1 stop
LHR9:20 amLondon Heathrow
Feb 24
LHR7:30 pmLondon Heathrow
14h 30m
1 stop
ICN7:00 pmIncheon Intl
$664
Find similar
Scandinavian Airlines
Jan 26
ICN11:45 pmIncheon Intl
18h 35m
1 stop
LHR9:20 amLondon Heathrow
Feb 3
LHR10:35 amLondon Heathrow
23h 25m
2 stops
ICN7:00 pmIncheon Intl
$685
Find similar

China Southern flights from Incheon Intl Airport to London

Our best China Southern deals on Incheon Intl Airport to London flight tickets
China Southern
Dec 19
ICN9:25 amIncheon Intl
17h 30m
1 stop
LHR5:55 pmLondon Heathrow
Dec 28
LHR9:30 pmLondon Heathrow
15h 45m
1 stop
ICN10:15 pmIncheon Intl
$675
Find similar
China Southern
Dec 20
ICN9:25 amIncheon Intl
18h 10m
1 stop
LHR6:35 pmLondon Heathrow
Dec 28
LHR9:30 pmLondon Heathrow
15h 45m
1 stop
ICN10:15 pmIncheon Intl
$690
Find similar
China Southern
Oct 22
ICN9:25 amIncheon Intl
16h 40m
1 stop
LHR6:05 pmLondon Heathrow
Oct 29
LHR5:15 pmLondon Heathrow
32h 05m
2 stops
ICN10:20 amIncheon Intl
$710
Find similar

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 October 9, 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

Wed 12/24

2:35 pm-3:55 pm

1 stop34h 20m

London Heathrow

Mon 12/29

9:10 pm-1:55 pm

1 stop31h 45m

$662

IncheonLondon

ICN - LGW

ICNLGW

Incheon Intl

Thu 11/27

4:05 pm-6:30 am

2 stops23h 25m

London Gatwick

Tue 12/2

10:30 am-3:05 pm

1 stop19h 35m

$662

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Mon 12/1

11:45 pm-4:25 pm

2 stops25h 40m

London Heathrow

Mon 12/8

9:05 pm-7:00 pm

2 stops36h 55m

$663

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Mon 2/16

11:45 pm-9:20 am

1 stop18h 35m

London Heathrow

Tue 2/24

7:30 pm-7:00 pm

1 stop14h 30m

$664

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Thu 11/27

12:25 pm-6:05 pm

Nonstop14h 40m

London Heathrow

Wed 12/3

8:10 pm-5:50 pm

Nonstop12h 40m

$668

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Thu 11/27

12:25 pm-6:05 pm

Nonstop14h 40m

London Heathrow

Wed 12/3

8:10 pm-5:50 pm

Nonstop12h 40m

$669

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Fri 12/19

9:25 am-5:55 pm

1 stop17h 30m

London Heathrow

Sun 12/28

9:30 pm-10:15 pm

1 stop15h 45m

$675

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Sat 12/20

9:25 am-6:35 pm

1 stop18h 10m

London Heathrow

Sun 12/28

9:30 pm-10:15 pm

1 stop15h 45m

$690

IncheonLondon

ICN - LGW

ICNLGW

Incheon Intl

Sat 12/20

1:10 pm-5:35 am

1 stop25h 25m

London Gatwick

Wed 1/7

11:35 am-4:35 pm

1 stop20h 00m

$700

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Sat 12/27

11:10 am-5:50 pm

1 stop15h 40m

London Heathrow

Fri 1/2

5:40 pm-9:55 pm

1 stop19h 15m

$705

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 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 $562, 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 $609.

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 Saturday. Travelers who choose to depart for London on a Saturday will often find tickets for as low as $960. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $1,111. 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 $858 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 $772 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 October 2025, prices for Incheon Intl Airport to London flights are approximately 0% 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

$711

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 $711. The best round-trip flight deal from Incheon Intl Airport to London found on momondo in the last 72 hours is $677.
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)
Search flight deals

  • How far is Incheon Intl to London by plane?

    A flight from Incheon Intl to London will travel around 5492.6 mi. 14h 30m 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
113 reviews
Search Air China flights
Asiana AirlinesPriceFrom $629Free CancellationRating
8.2
486 reviews
Search Asiana Airlines flights
Etihad AirwaysPriceFrom $672Free CancellationRating
7.4
1,272 reviews
Search Etihad Airways flights
LufthansaPriceFrom $734Free CancellationRating
6.8
7,462 reviews
Search Lufthansa flights
Korean AirPriceFrom $847Free CancellationRating
8.4
1,148 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 6 Korean Air flights for this route in a normal week, average airfare is usually $1,216 round-trip - but some users have found much cheaper deals with momondo.

  • Asiana Airlines Flights From Incheon Intl Airport to London

    $629 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 $908, however, with flight time and availability significantly affecting the price. Asiana Airlines (8.2/10 from 486 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
Milton Keynes
Luton
Dover
Slough
Guildford
Dartford
Hayes
Crawley
Chelmsford
Brentwood
Colchester
Ilford
Folkestone
Romford
Cobham
Stansted
Watford
Richmond

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Seoul to London. Millions of users trust and use momondo every year so you are in good hands.

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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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
London City Airport
London Gatwick Airport
London Heathrow Airport
London Luton Airport
London Southend Airport
London Stansted Airport