Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from London to Seoul from $390

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 9/30. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from London to Seoul

Cheap round-trip flights

Air China Logo
10:40 pm - 2:15 pmLHR-ICN
31h 35m1 stop
Air China Logo
1:05 pm - 5:45 pmICN-LHR
36h 40m1 stop
$521Air China
Find Deal
Tue, Oct 14 - Tue, Oct 21
Air China Logo
8:25 pm - 9:55 pmLHR-ICN
16h 30m1 stop
Air China Logo
2:55 pm - 7:40 pmICN-LHR
37h 45m1 stop
$530Air China
Find Deal
Wed, Jan 21 - Wed, Jan 28
China Eastern Logo
9:20 pm - 5:25 pmLHR-ICN
36h 05m1 stop
China Eastern Logo
4:35 pm - 6:40 pmICN-LHR
34h 05m2 stops
$550China Eastern
Find Deal
Wed, Oct 1 - Mon, Oct 13
China Eastern Logo
9:00 pm - 11:00 amLHR-ICN
29h 00m2 stops
China Eastern Logo
8:50 pm - 5:30 pmICN-LHR
29h 40m2 stops
$551China Eastern
Find Deal
Sun, Nov 2 - Sun, Nov 16
Multiple Airlines Logo
10:30 am - 11:55 amLGW-ICN
16h 25m1 stop
Multiple Airlines Logo
6:25 pm - 2:00 pmICN-LGW
28h 35m1 stop
$580Multiple Airlines
Find Deal
Tue, Dec 2 - Sat, Dec 27
Lufthansa Logo
8:45 am - 11:15 amLHR-ICN
17h 30m1 stop
Lufthansa Logo
1:30 pm - 9:00 pmICN-LHR
16h 30m1 stop
$582Lufthansa
Find Deal
Tue, Feb 10 - Wed, Feb 25
Lufthansa Logo
11:10 am - 11:15 amLHR-ICN
15h 05m1 stop
Lufthansa Logo
1:30 pm - 9:00 pmICN-LHR
16h 30m1 stop
$583Lufthansa
Find Deal
Thu, Jan 15 - Fri, Feb 20
Multiple Airlines Logo
9:00 pm - 10:10 pmLHR-ICN
17h 10m1 stop
Multiple Airlines Logo
4:20 pm - 5:30 pmICN-LHR
34h 10m1 stop
$599Multiple Airlines
Find Deal
Wed, Oct 22 - Mon, Nov 3
Shenzhen Airlines Logo
9:10 pm - 1:55 pmLHR-ICN
31h 45m1 stop
Shenzhen Airlines Logo
4:45 pm - 7:10 pmICN-LHR
35h 25m1 stop
$604Shenzhen Airlines
Find Deal
Fri, Dec 5 - Thu, Dec 25
Shenzhen Airlines Logo
10:05 pm - 1:40 pmLHR-ICN
31h 35m1 stop
Shenzhen Airlines Logo
4:45 pm - 8:10 pmICN-LHR
35h 25m1 stop
$626Shenzhen Airlines
Find Deal
Sat, Sep 27 - Sat, Oct 25

China Eastern flights from London to Incheon Intl Airport

Our best China Eastern deals on London to Incheon Intl Airport flight tickets
China Eastern
Oct 1
LHR9:20 pmLondon Heathrow
36h 05m
1 stop
ICN5:25 pmIncheon Intl
Oct 13
ICN4:35 pmIncheon Intl
34h 05m
2 stops
LHR6:40 pmLondon Heathrow
$550
Find similar
China Eastern
Nov 2
LHR9:00 pmLondon Heathrow
29h 00m
2 stops
ICN11:00 amIncheon Intl
Nov 16
ICN8:50 pmIncheon Intl
29h 40m
2 stops
LHR5:30 pmLondon Heathrow
$551
Find similar
China Eastern
Nov 13
LGW10:30 amLondon Gatwick
19h 50m
1 stop
ICN3:20 pmIncheon Intl
Jan 13
ICN4:20 pmIncheon Intl
23h 10m
1 stop
LGW6:30 amLondon Gatwick
$566
Find similar

Lufthansa flights from London to Incheon Intl Airport

Our best Lufthansa deals on London to Incheon Intl Airport flight tickets
Lufthansa
Feb 10
LHR8:45 amLondon Heathrow
17h 30m
1 stop
ICN11:15 amIncheon Intl
Feb 25
ICN1:30 pmIncheon Intl
16h 30m
1 stop
LHR9:00 pmLondon Heathrow
$582
Find similar
Lufthansa
Jan 15
LHR11:10 amLondon Heathrow
15h 05m
1 stop
ICN11:15 amIncheon Intl
Feb 20
ICN1:30 pmIncheon Intl
16h 30m
1 stop
LHR9:00 pmLondon Heathrow
$583
Find similar
Lufthansa
Jan 24
LHR8:45 amLondon Heathrow
17h 30m
1 stop
ICN11:15 amIncheon Intl
Feb 27
ICN1:30 pmIncheon Intl
16h 30m
1 stop
LHR9:00 pmLondon Heathrow
$584
Find similar

momondo Fare Finder

 
Customize 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 832,500 searches. Data last updated September 16, 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

Tue 10/14

10:40 pm-2:15 pm

1 stop31h 35m

Incheon Intl

Tue 10/21

1:05 pm-5:45 pm

1 stop36h 40m

$521

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Wed 1/21

8:25 pm-9:55 pm

1 stop16h 30m

Incheon Intl

Wed 1/28

2:55 pm-7:40 pm

1 stop37h 45m

$530

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Wed 10/1

9:20 pm-5:25 pm

1 stop36h 05m

Incheon Intl

Mon 10/13

4:35 pm-6:40 pm

2 stops34h 05m

$550

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Sun 11/2

9:00 pm-11:00 am

2 stops29h 00m

Incheon Intl

Sun 11/16

8:50 pm-5:30 pm

2 stops29h 40m

$551

LondonIncheon

LGW - ICN

LGWICN

London Gatwick

Tue 12/2

10:30 am-11:55 am

1 stop16h 25m

Incheon Intl

Sat 12/27

6:25 pm-2:00 pm

1 stop28h 35m

$580

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Tue 2/10

8:45 am-11:15 am

1 stop17h 30m

Incheon Intl

Wed 2/25

1:30 pm-9:00 pm

1 stop16h 30m

$582

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Thu 1/15

11:10 am-11:15 am

1 stop15h 05m

Incheon Intl

Fri 2/20

1:30 pm-9:00 pm

1 stop16h 30m

$583

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Wed 10/22

9:00 pm-10:10 pm

1 stop17h 10m

Incheon Intl

Mon 11/3

4:20 pm-5:30 pm

1 stop34h 10m

$599

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Fri 12/5

9:10 pm-1:55 pm

1 stop31h 45m

Incheon Intl

Thu 12/25

4:45 pm-7:10 pm

1 stop35h 25m

$604

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Sat 9/27

10:05 pm-1:40 pm

1 stop31h 35m

Incheon Intl

Sat 10/25

4:45 pm-8:10 pm

1 stop35h 25m

$626

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 $589, are often lower during this time because this is during the off-season. If you are unable to visit Incheon Intl Airport during the month of November, then departing from London during the month February is also very affordable. Most momondo users find prices during this month for around $629.

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

The cheapest day to depart from London to Incheon Intl Airport is on a Wednesday when prices can be found for as low as $1,139. If your travel schedule is flexible, try to avoid departing on a Thursday because tickets tend to average around $1,268. These prices are subject to change though, so be sure to set up a Price Alert for flights to Incheon Intl Airport.

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

At noon is the cheapest time of day to fly from London to Incheon Intl Airport when you can find flight prices for as low as $498. Flying to Incheon Intl Airport at noon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $1,203 on average. Flights to Incheon Intl Airport from London in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

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 $924 when searching weeks out. 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 $874 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 11% 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 round-trip 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

$795

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 $795. The best round-trip flight deal from London to Incheon Intl Airport found on momondo in the last 72 hours is $1,306.
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?

    A flight from London to Incheon Intl will travel around 5492.6 mi. Flights usually cover this in 13h 55m, depending on flying conditions and air traffic around both airports.

  • 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?

    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 London to Incheon Intl Airport.

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

    The travel and health documents you'll need for your trip to Incheon Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Incheon Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • 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
Air ChinaPriceFrom $507Free CancellationRating
7.3
101 reviews
Search Air China flights
LufthansaPriceFrom $579Free CancellationRating
6.8
7,407 reviews
Search Lufthansa flights
Asiana AirlinesPriceFrom $990Free CancellationRating
8.2
480 reviews
Search Asiana Airlines flights
Korean AirPriceFrom $1,000Free CancellationRating
8.4
1,140 reviews
Search Korean Air flights

  • Korean Air Flights From London to Incheon Intl Airport

    Korean Air flies from London to Incheon Intl Airport around 7 times per week, with 1,140 momondo users rating the airline 8.4/10. The cheapest Korean Air deal from London to Incheon Intl Airport in the last 72 hours was $1,000 (round-trip), much lower than the average airfare cost of $1,200 for Korean Air flights on this route.

  • Asiana Airlines Flights From London to Incheon Intl Airport

    Asiana Airlines (8.2/10 from 480 reviews) operates around 7 flights from London to Incheon Intl Airport in any given week. The average Asiana Airlines airfare for this route is around $1,373, with deals from around $990 rare but found on momondo. Referenced prices are for round-trip London to Incheon Intl Airport flight searches in the last 72 hours.

Traveling to a place near Seoul?

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

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from London to Seoul for 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?

Yes momondo offers price alerts on flights to Seoul from London. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Incheon Intl Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 10/16
Thu 10/23
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Seoul

Popular cities in South Korea

Popular flights according to clicks in the last 7 days on momondo
Flights to Seoul Gimpo Intl Airportfrom $654