Cheap flights from London to Seoul from £248

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 8/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise 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.

Find the cheapest flights from London to Seoul

Cheap return flights

Enter your travel dates to find the best prices.
China Southern Logo
21:00 - 22:10
LHR
-
ICN
17h 10m
1 stop
China Southern Logo
09:25 - 18:05
ICN
-
LHR
16h 40m
1 stop
£342China Southern
Thu, 23 Apr - Sat, 9 May
China Eastern Logo
21:00 - 20:45
LHR
-
ICN
14h 45m
1 stop
China Eastern Logo
08:55 - 17:30
ICN
-
LHR
17h 35m
1 stop
£343China Eastern
Sun, 8 Mar - Sat, 21 Mar
China Eastern Logo
11:35 - 20:40
LGW
-
ICN
25h 05m
2 stops
China Eastern Logo
12:55 - 16:00
ICN
-
LGW
35h 05m
1 stop
£343China Eastern
Tue, 2 Jun - Sat, 13 Jun
China Southern Logo
21:30 - 22:15
LHR
-
ICN
15h 45m
1 stop
China Southern Logo
09:25 - 18:35
ICN
-
LHR
18h 10m
1 stop
£356China Southern
Wed, 11 Mar - Wed, 18 Mar
Air China Logo
20:25 - 13:05
LHR
-
GMP
31h 40m
1 stop
Air China Logo
14:25 - 17:55
GMP
-
LHR
36h 30m
1 stop
£421Air China
Tue, 3 Mar - Tue, 10 Mar
Air China Logo
20:25 - 13:05
LHR
-
GMP
31h 40m
1 stop
Air China Logo
14:25 - 15:55
GMP
-
LHR
34h 30m
1 stop
£425Air China
Tue, 3 Mar - Tue, 17 Mar
KLM Logo
17:50 - 16:25
LCY
-
ICN
14h 35m
1 stop
KLM Logo
22:25 - 07:55
ICN
-
LCY
17h 30m
1 stop
£441KLM
Sun, 14 Jun - Tue, 23 Jun
KLM Logo
17:10 - 16:25
LCY
-
ICN
15h 15m
1 stop
KLM Logo
22:25 - 07:55
ICN
-
LCY
17h 30m
1 stop
£447KLM
Thu, 4 Jun - Tue, 23 Jun
ANA Logo
09:15 - 22:20
LCY
-
GMP
29h 05m
2 stops
ANA Logo
19:55 - 08:40
GMP
-
LCY
44h 45m
2 stops
£1,892ANA
Mon, 18 May - Wed, 3 Jun
ANA Logo
09:15 - 22:20
LCY
-
GMP
29h 05m
2 stops
ANA Logo
12:40 - 08:40
GMP
-
LCY
52h 00m
2 stops
£2,250ANA
Mon, 20 Apr - Sat, 25 Apr

China Eastern flights from London to Seoul

Our best China Eastern deals on London to Seoul flight tickets
China Eastern
8 Mar
LHR21:00London Heathrow
14h 45m
1 stop
ICN20:45Incheon Intl
21 Mar
ICN08:55Incheon Intl
17h 35m
1 stop
LHR17:30London Heathrow
£343
China Eastern
21 Apr
LGW18:00London Gatwick
32h 55m
2 stops
ICN10:55Incheon Intl
2 Jun
ICN18:25Incheon Intl
28h 35m
1 stop
LGW15:00London Gatwick
£344
China Eastern
27 Apr
LHR21:20London Heathrow
29h 40m
2 stops
ICN11:00Incheon Intl
6 May
ICN08:55Incheon Intl
17h 45m
1 stop
LHR18:40London Heathrow
£348

KLM flights from London to Seoul

Our best KLM deals on London to Seoul flight tickets
KLM
29 Jan
LHR15:45London Heathrow
16h 10m
1 stop
ICN16:55Incheon Intl
19 Feb
ICN23:05Incheon Intl
18h 55m
1 stop
LHR09:00London Heathrow
£440
KLM
26 Jan
LCY17:05London City
14h 50m
1 stop
ICN16:55Incheon Intl
19 Feb
ICN23:05Incheon Intl
17h 10m
1 stop
LCY07:15London City
£444
KLM
4 Jun
LCY17:50London City
14h 35m
1 stop
ICN16:25Incheon Intl
23 Jun
ICN22:25Incheon Intl
17h 30m
1 stop
LCY07:55London City
£447

momondo Fare Finder

 
Customise your flight search to find flights from London to Seoul 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 22 January 2026.
Use the filters below to find and compare flights from London to Seoul that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Thu 23/4

21:00-22:10

1 stop17h 10m

Incheon Intl

Sat 9/5

09:25-18:05

1 stop16h 40m

£342

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Sun 8/3

21:00-20:45

1 stop14h 45m

Incheon Intl

Sat 21/3

08:55-17:30

1 stop17h 35m

£343

LondonIncheon

LGW - ICN

LGWICN

London Gatwick

Tue 2/6

11:35-20:40

2 stops25h 05m

Incheon Intl

Sat 13/6

12:55-16:00

1 stop35h 05m

£343

LondonIncheon

LHR - ICN

LHRICN

London Heathrow

Wed 11/3

21:30-22:15

1 stop15h 45m

Incheon Intl

Wed 18/3

09:25-18:35

1 stop18h 10m

£356

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Tue 3/3

20:25-13:05

1 stop31h 40m

Seoul Gimpo Intl

Tue 10/3

14:25-17:55

1 stop36h 30m

£421

LondonSeoul

LHR - GMP

LHRGMP

London Heathrow

Tue 3/3

20:25-13:05

1 stop31h 40m

Seoul Gimpo Intl

Tue 17/3

14:25-15:55

1 stop34h 30m

£425

LondonIncheon

LCY - ICN

LCYICN

London City

Sun 14/6

17:50-16:25

1 stop14h 35m

Incheon Intl

Tue 23/6

22:25-07:55

1 stop17h 30m

£441

LondonIncheon

LCY - ICN

LCYICN

London City

Thu 4/6

17:10-16:25

1 stop15h 15m

Incheon Intl

Tue 23/6

22:25-07:55

1 stop17h 30m

£447

LondonSeoul

LCY - GMP

LCYGMP

London City

Mon 18/5

09:15-22:20

2 stops29h 05m

Seoul Gimpo Intl

Wed 3/6

19:55-08:40

2 stops44h 45m

£1,892

LondonSeoul

LCY - GMP

LCYGMP

London City

Mon 20/4

09:15-22:20

2 stops29h 05m

Seoul Gimpo Intl

Sat 25/4

12:40-08:40

2 stops52h 00m

£2,250

Flights are sorted by cheapest return 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 Seoul

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 London and Seoul?

What is the cheapest month to fly to Seoul?

The month of November is, on average, the cheapest month to fly to Seoul from London, with most prices found around £433. If you are unable to visit Seoul during the month of November, then departing from London during the month January is also very affordable. Most momondo users find prices during this month for around £459.

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

The cheapest day to depart from London to Seoul is on a Tuesday when prices can be found for as low as £882. Flights from London to Seoul on a Saturday will generally be more expensive and average around £1,020. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

Our most recent data shows that the best time of day to fly to Seoul is at midday. Flights from London to Seoul during this time can be as low as £639. Flights in the afternoon are often more expensive, with an average ticket price of £1,020.

What is the cheapest London to Seoul flight route?

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

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

You are more likely to see cheaper flights to Seoul from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Seoul for around £698 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seoul from London for as low as £587 on momondo.

What cabin class options are available on London to Seoul flights?

There are 4 cabin classes available to choose from on London to Seoul 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 Seoul flights?

You could potentially save up to 35% on your flight if you consider stops on a London to Seoul flight.

How have London to Seoul flight prices changed over time?

As of January 2026, prices for London to Seoul flights are approximately 9% cheaper when compared to flights at the same time last year.

When to book flights from London to Seoul

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

Cheap London to Seoul (LON to SEL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London to Seoul

Best price found

£485

Fastest flight time

12h 35m

Direct flights

Every day

Airports in Seoul

2 airports
The best one-way flight to Seoul from London in the past 72 hours is £485. The best return flight deal from London to Seoul found on momondo in the last 72 hours is £613.
The fastest flight from London to Seoul takes 12h 35m
Direct flights go from London to Seoul every day.
There are 2 airports in Seoul. From London there are direct flights to Incheon Intl (ICN).
  • How far is London to Seoul by plane?

    The straight-line distance from London to Seoul is 5501.4 mi. Flights usually cover this in 12h 35m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from London to Seoul?

    Prices for flights from London to Seoul are updated daily.

  • How many operators does momondo search for flights from London to Seoul?

  • How old do you have to be to fly from London to Seoul?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London to Seoul.

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

    The travel and health documents you'll need for your trip to Seoul 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 Seoul. 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 Seoul?

  • What is the most popular airline from London to Seoul?

Best airlines flying from London to Seoul

Compare and see reviews for airlines that fly from London to Seoul with momondo
Airline
Rating
Free Cancellation
Price
China EasternPriceFrom £303Free CancellationRating
7.2
191 reviews
Search China Eastern flights
Turkish AirlinesPriceFrom £328Free CancellationRating
7.3
4,200 reviews
Search Turkish Airlines flights
China SouthernPriceFrom £330Free CancellationRating
7.3
133 reviews
Search China Southern flights
Air ChinaPriceFrom £344Free CancellationRating
7.2
138 reviews
Search Air China flights
LufthansaPriceFrom £423Free CancellationRating
6.8
7,738 reviews
Search Lufthansa flights
Scandinavian AirlinesPriceFrom £456Free CancellationRating
7.3
1,660 reviews
Search Scandinavian Airlines flights
Etihad AirwaysPriceFrom £527Free CancellationRating
7.3
1,374 reviews
Search Etihad Airways flights
Air FrancePriceFrom £543Free CancellationRating
7.4
1,523 reviews
Search Air France flights
LOTPriceFrom £556Free CancellationRating
7.5
1,174 reviews
Search LOT flights
KLMPriceFrom £564Free CancellationRating
7.7
1,442 reviews
Search KLM flights
  • Korean Air Flights From London to Seoul

    Korean Air flight deals from London to Seoul start from £661 round-trip. Over the 7 Korean Air flights for this route in a normal week, average airfare is usually £856 round-trip - but some users have found much cheaper deals with momondo.

  • Asiana Airlines Flights From London to Seoul

    The best Asiana Airlines deal for London to Seoul flight tickets found on momondo in the last 72 hours was £692, round-trip. It should be noted that an average Asiana Airlines flight deal for this route in this time was higher, at £838 round-trip. Asiana Airlines operates 7 flights out of London into Seoul in an average week, so prices vary by time and availability. 501 Asiana Airlines reviews by users on momondo have scored the airline at 8.1/10.

Why use momondo?

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

It is quick and easy to find London to Seoul flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Seoul that suits you.

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

Yes. momondo enables you to select and highlight flights to Seoul from London with this policy.

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

Once you have performed a search for London to Seoul 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 London to Seoul right now. Can momondo alert me if prices change?

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

An easier way to manage your Seoul trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 21/2
Sat 28/2

Find better results for your trip to South Korea

Fly into one of these airports located in Seoul

Airports listed have a maximum distance of 30.3 mi from Seoul