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Cheap flights from Seoul to London from £150

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seoul to London departing on 27/5. 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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0 bags

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Cheap return flights

These are some of the best return flight deals from Seoul to London that have been recently found on momondo from popular airlines, departing in the coming months.
SWISS Logo
10:05 - 16:35ICN-LHR
38h 30m2 stops
SWISS Logo
19:15 - 08:25LHR-ICN
53h 10m2 stops
£269SWISS
Find Deal
Mon, 9 Jun - Fri, 20 Jun
China Eastern Logo
12:55 - 15:10ICN-LGW
34h 15m1 stop
China Eastern Logo
19:00 - 15:25LGW-ICN
36h 25m1 stop
£337China Eastern
Find Deal
Thu, 22 May - Sun, 25 May
Air China Logo
14:55 - 20:15ICN-LHR
37h 20m1 stop
Air China Logo
22:00 - 12:55LHR-ICN
30h 55m1 stop
£358Air China
Find Deal
Wed, 14 May - Tue, 20 May
China Southern Logo
13:30 - 18:05GMP-LHR
36h 35m1 stop
China Southern Logo
21:00 - 12:25LHR-GMP
31h 25m1 stop
£358China Southern
Find Deal
Mon, 19 May - Mon, 26 May
China Southern Logo
16:45 - 19:00ICN-LHR
34h 15m1 stop
China Southern Logo
22:10 - 15:25LHR-ICN
33h 15m1 stop
£359China Southern
Find Deal
Wed, 21 May - Tue, 27 May
Air China Logo
14:55 - 20:15ICN-LHR
37h 20m1 stop
Air China Logo
22:00 - 12:55LHR-ICN
30h 55m1 stop
£362Air China
Find Deal
Wed, 14 May - Tue, 20 May
 Logo
15:15 - 19:00ICN-LHR
35h 45m1 stop
 Logo
22:00 - 21:30LHR-ICN
39h 30m2 stops
Thu, 19 Jun - Mon, 30 Jun
 Logo
09:25 - 18:05ICN-LHR
16h 40m1 stop
 Logo
22:00 - 21:30LHR-ICN
39h 30m1 stop
Tue, 13 May - Wed, 28 May
Lufthansa Logo
12:25 - 08:20ICN-LCY
27h 55m1 stop
Lufthansa Logo
08:45 - 09:55LCY-ICN
17h 10m1 stop
£602Lufthansa
Find Deal
Thu, 12 Jun - Wed, 18 Jun
Lufthansa Logo
12:25 - 08:10ICN-LCY
27h 45m1 stop
Lufthansa Logo
10:00 - 10:50LCY-ICN
15h 50m1 stop
£653Lufthansa
Find Deal
Tue, 10 Jun - Mon, 8 Dec

SWISS flights from Seoul to London

Our best SWISS deals on Seoul to London flight tickets
SWISS
9 Jun
ICN10:05Incheon Intl
38h 30m
2 stops
LHR16:35London Heathrow
20 Jun
LHR19:15London Heathrow
53h 10m
2 stops
ICN08:25Incheon Intl
SWISS
2 Jul
ICN10:05Incheon Intl
19h 40m
1 stop
LHR21:45London Heathrow
6 Jul
LHR08:45London Heathrow
15h 40m
1 stop
ICN08:25Incheon Intl
SWISS
19 May
ICN10:05Incheon Intl
17h 15m
1 stop
LHR19:20London Heathrow
20 May
LHR07:00London Heathrow
17h 25m
2 stops
ICN08:25Incheon Intl

Air China flights from Seoul to London

Our best Air China deals on Seoul to London flight tickets
Air China
14 May
ICN14:55Incheon Intl
37h 20m
1 stop
LHR20:15London Heathrow
20 May
LHR22:00London Heathrow
30h 55m
1 stop
ICN12:55Incheon Intl
Air China
14 May
ICN14:55Incheon Intl
37h 20m
1 stop
LHR20:15London Heathrow
20 May
LHR22:00London Heathrow
30h 55m
1 stop
ICN12:55Incheon Intl
Air China
14 May
ICN14:55Incheon Intl
37h 20m
1 stop
LHR20:15London Heathrow
31 May
LHR22:00London Heathrow
30h 55m
1 stop
ICN12:55Incheon Intl

See travel insights to London from

How to get the cheapest flight ticket from Seoul 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 Seoul and London?

What is the cheapest month to fly to London?

The cheapest month to fly to London from Seoul is in November. Flight prices, which tend to average around £437, are often lower during this time because this is during the off-season. The month of December is another great option to travel to London, with average flight prices from Seoul averaging around £438.

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

Our data shows that Wednesday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £724. When flying out on a Tuesday, the most expensive travel day of the week, you can expect to see flight prices from Seoul to London for around £830.

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

The cheapest time of day to fly to London is in the evening when flights can be purchased for as low as £542. Flights in the morning are often more expensive, with an average ticket price of £796.

What is the cheapest Seoul to London flight route?

Fly from Incheon Intl to London Heathrow for the best Seoul - 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 Seoul when booking 8 weeks ahead of your departure date. In general, you can expect to find flights to London for around £627 when searching 8 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Seoul for as low as £587 on momondo.

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

There are 4 cabin classes available to choose from on Seoul 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 Seoul to London flight prices changed over time?

As of May 2025, prices for Seoul to London flights are approximately 37% cheaper when compared to flights at the same time last year.

When to book flights from Seoul to London

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

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

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

Best price found

£150

Fastest flight time

15h 25m

Direct flights

Every day

Airports in London

4 airports
The best one-way flight to London from Seoul in the past 72 hours is £150. The best return flight deal from Seoul to London found on momondo in the last 72 hours is £269.
The fastest flight from Seoul to London takes 15h 25m
Direct flights go from Seoul to London every day.
There are 4 airports near London: London City (LCY), London Heathrow (LHR), London Gatwick (LGW), London Southend (SEN)

  • How far is Seoul to London by plane?

    Seoul and London are 5501.4 mi apart from one another. Flights usually cover this in 15h 25m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from Seoul to London refresh daily.

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seoul to London.

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

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

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


Best airlines flying from Seoul to London

Compare and see reviews for airlines that fly from Seoul to London with momondo
Airline
Rating
Free Cancellation
Price
China EasternPriceFrom £355Free CancellationRating
7.1
148 reviews
Search China Eastern flights
Asiana AirlinesPriceFrom £650Free CancellationRating
8.2
442 reviews
Search Asiana Airlines flights
Korean AirPriceFrom £674Free CancellationRating
8.4
1,069 reviews
Search Korean Air flights
  • Korean Air Flights From Seoul to London

    Korean Air is one of the most popular airlines flying from Seoul to London, operating 7 flights/week on average for this route. A good Korean Air flight deal for Seoul to London starts from £901 round-trip, up to an average price of £1,186. Our users have rated Korean Air at 8.4/10.

  • Asiana Airlines Flights From Seoul to London

    Another popular option for Seoul to London flights is Asiana Airlines (8.2/10, 442 ratings). Asiana Airlines flies from Seoul to London around 7 times per week, with deals starting from £869 round-trip and rising to an average price of around £1,093.


Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Eastbourne
Milton Keynes
Luton
Slough
Southend-on-Sea
Maidstone
Gatwick
Ipswich
Canterbury
Margate
Ilford
Dartford
Hounslow
Colchester
Guildford
Worthing
Winchester
Crawley
Chichester
Croydon

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?

Yes. All flights to London from Seoul on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once all potential Seoul to London flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Seoul to London right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Seoul to London flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.


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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