Cheap flights from Incheon Intl Airport to London from $181

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 3/3. 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

Enter your travel dates to find the best prices.
China Eastern Logo
4:20 pm - 2:00 pm
ICN
-
LGW
30h 40m
1 stop
China Eastern Logo
10:30 am - 5:25 pm
LGW
-
ICN
21h 55m
1 stop
$454China Eastern
Tue, Mar 3 - Sun, Mar 8
China Eastern Logo
8:55 am - 5:30 pm
ICN
-
LHR
17h 35m
1 stop
China Eastern Logo
9:00 pm - 8:45 pm
LHR
-
ICN
14h 45m
1 stop
$458China Eastern
Wed, Mar 11 - Wed, Mar 18
China Eastern Logo
6:25 pm - 5:30 pm
ICN
-
LHR
32h 05m
1 stop
China Eastern Logo
9:00 pm - 8:45 pm
LHR
-
ICN
14h 45m
1 stop
$464China Eastern
Wed, Mar 11 - Wed, Mar 18
China Eastern Logo
4:10 pm - 5:30 pm
ICN
-
LHR
34h 20m
1 stop
China Eastern Logo
9:00 pm - 8:45 pm
LHR
-
ICN
14h 45m
1 stop
$465China Eastern
Tue, Mar 3 - Mon, Mar 9
China Eastern Logo
4:10 pm - 6:30 am
ICN
-
LGW
23h 20m
1 stop
China Eastern Logo
10:30 am - 10:45 pm
LGW
-
ICN
27h 15m
2 stops
$481China Eastern
Thu, Mar 12 - Thu, Mar 19
China Eastern Logo
4:20 pm - 5:30 pm
ICN
-
LHR
34h 10m
1 stop
China Eastern Logo
9:00 pm - 8:45 pm
LHR
-
ICN
14h 45m
1 stop
$490China Eastern
Tue, Mar 3 - Sun, Mar 8
China Eastern Logo
4:10 pm - 2:00 pm
ICN
-
LGW
30h 50m
1 stop
China Eastern Logo
10:30 am - 2:55 pm
LGW
-
ICN
19h 25m
2 stops
$491China Eastern
Wed, Mar 11 - Wed, Mar 18
China Eastern Logo
4:20 pm - 5:30 pm
ICN
-
LHR
34h 10m
1 stop
China Eastern Logo
9:00 pm - 8:45 pm
LHR
-
ICN
14h 45m
1 stop
$496China Eastern
Tue, Mar 3 - Mon, Mar 16
KLM Logo
11:05 pm - 8:10 am
ICN
-
LCY
18h 05m
1 stop
KLM Logo
5:50 pm - 4:55 pm
LCY
-
ICN
14h 05m
1 stop
$635KLM
Thu, Feb 19 - Mon, Mar 2
KLM Logo
11:05 pm - 7:15 am
ICN
-
LCY
17h 10m
1 stop
KLM Logo
5:05 pm - 4:55 pm
LCY
-
ICN
14h 50m
1 stop
$690KLM
Thu, Feb 26 - Mon, Mar 2

KLM flights from Incheon Intl Airport to London

Our best KLM deals on Incheon Intl Airport to London flight tickets
KLM
Feb 19
ICN11:05 pmIncheon Intl
20h 40m
1 stop
LHR10:45 amLondon Heathrow
Mar 2
LHR11:45 amLondon Heathrow
20h 10m
1 stop
ICN4:55 pmIncheon Intl
$610
KLM
Feb 19
ICN11:05 pmIncheon Intl
18h 05m
1 stop
LCY8:10 amLondon City
Mar 2
LCY5:50 pmLondon City
14h 05m
1 stop
ICN4:55 pmIncheon Intl
$635
KLM
Feb 26
ICN11:05 pmIncheon Intl
18h 55m
1 stop
LHR9:00 amLondon Heathrow
Mar 1
LHR8:25 pmLondon Heathrow
35h 30m
1 stop
ICN4:55 pmIncheon Intl
$658

Shenzhen Airlines flights from Incheon Intl Airport to London

Our best Shenzhen Airlines deals on Incheon Intl Airport to London flight tickets
Shenzhen Airlines
Mar 4
ICN2:15 pmIncheon Intl
61h 55m
2 stops
LHR7:10 pmLondon Heathrow
Mar 11
LHR9:10 pmLondon Heathrow
31h 05m
2 stops
ICN1:15 pmIncheon Intl
$639
Shenzhen Airlines
May 22
ICN2:25 pmIncheon Intl
37h 25m
2 stops
LHR7:50 pmLondon Heathrow
May 29
LHR10:05 pmLondon Heathrow
31h 15m
2 stops
ICN1:20 pmIncheon Intl
$656
Shenzhen Airlines
Mar 6
ICN2:15 pmIncheon Intl
37h 55m
2 stops
LHR7:10 pmLondon Heathrow
Mar 18
LHR9:10 pmLondon Heathrow
31h 05m
2 stops
ICN1:15 pmIncheon Intl
$659

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 January 26, 2026.
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 - LGW

ICNLGW

Incheon Intl

Tue 3/3

4:20 pm-2:00 pm

1 stop30h 40m

London Gatwick

Sun 3/8

10:30 am-5:25 pm

1 stop21h 55m

$454

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Wed 3/11

8:55 am-5:30 pm

1 stop17h 35m

London Heathrow

Wed 3/18

9:00 pm-8:45 pm

1 stop14h 45m

$458

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Wed 3/11

6:25 pm-5:30 pm

1 stop32h 05m

London Heathrow

Wed 3/18

9:00 pm-8:45 pm

1 stop14h 45m

$464

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Tue 3/3

4:10 pm-5:30 pm

1 stop34h 20m

London Heathrow

Mon 3/9

9:00 pm-8:45 pm

1 stop14h 45m

$465

IncheonLondon

ICN - LGW

ICNLGW

Incheon Intl

Thu 3/12

4:10 pm-6:30 am

1 stop23h 20m

London Gatwick

Thu 3/19

10:30 am-10:45 pm

2 stops27h 15m

$481

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Tue 3/3

4:20 pm-5:30 pm

1 stop34h 10m

London Heathrow

Sun 3/8

9:00 pm-8:45 pm

1 stop14h 45m

$490

IncheonLondon

ICN - LGW

ICNLGW

Incheon Intl

Wed 3/11

4:10 pm-2:00 pm

1 stop30h 50m

London Gatwick

Wed 3/18

10:30 am-2:55 pm

2 stops19h 25m

$491

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Tue 3/3

4:20 pm-5:30 pm

1 stop34h 10m

London Heathrow

Mon 3/16

9:00 pm-8:45 pm

1 stop14h 45m

$496

IncheonLondon

ICN - LCY

ICNLCY

Incheon Intl

Thu 2/19

11:05 pm-8:10 am

1 stop18h 05m

London City

Mon 3/2

5:50 pm-4:55 pm

1 stop14h 05m

$635

IncheonLondon

ICN - LCY

ICNLCY

Incheon Intl

Thu 2/26

11:05 pm-7:15 am

1 stop17h 10m

London City

Mon 3/2

5:05 pm-4:55 pm

1 stop14h 50m

$690

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 $561, 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 $669.

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 Tuesday. Travelers who choose to depart for London on a Tuesday will often find tickets for as low as $902. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $1,064. These prices are subject to change though, so be sure to set up a Price Alert for flights to London.

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 $895 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 $752 on momondo.

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

There are 3 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.

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

You could potentially save up to 29% on your flight if you consider stops on a Incheon Intl Airport to London flight.

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

As of January 2026, prices for Incheon Intl Airport to London flights are approximately 26% 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

$580

Fastest flight time

14h 30m

Direct flights

Every day

Airports in London

6 airports
The best one-way flight to London from Incheon Intl Airport in the past 72 hours is $580. The best round-trip flight deal from Incheon Intl Airport to London found on momondo in the last 72 hours is $1,137.
The fastest flight from Incheon Intl Airport to London takes 14h 30m
Direct flights go from Incheon Intl Airport to London every day.
There are 6 airports in London. From Incheon Intl Airport there are direct flights to 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. 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 $552Free CancellationRating
7.2
138 reviews
Search Air China flights
Asiana AirlinesPriceFrom $629Free CancellationRating
8.1
501 reviews
Search Asiana Airlines flights
LufthansaPriceFrom $754Free CancellationRating
6.8
7,747 reviews
Search Lufthansa flights
Korean AirPriceFrom $847Free CancellationRating
8.4
1,188 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 $1,179 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 $872, however, with flight time and availability significantly affecting the price. Asiana Airlines (8.1/10 from 501 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
Crawley
Wembley
Dartford
Hayes
Brentwood
Harrow
Watford
Cobham
Folkestone
Romford
Stansted
Croydon
Richmond

Why use momondo?

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

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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
Wed 2/25
Wed 3/4

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