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Fly from
Fly to
Route
Depart
Return
LondonIncheon
LGW London Gatwick - ICN Incheon Intl
LGWICN
London Gatwick
Thu 5/11
10:30 a.m.-3:05 p.m.
1 stop19h 35m
Incheon Intl
Mon 9/11
8:55 a.m.-6:30 a.m.
1 stop30h 35m
LondonIncheon
LHR London Heathrow - ICN Incheon Intl
LHRICN
London Heathrow
Tue 19/1
8:45 a.m.-11:15 a.m.
1 stop17h 30m
Incheon Intl
Wed 17/2
1:30 p.m.-10:55 p.m.
1 stop18h 25m
LondonIncheon
LHR London Heathrow - ICN Incheon Intl
LHRICN
London Heathrow
Thu 12/11
10:30 p.m.-1:55 p.m.
1 stop30h 25m
Incheon Intl
Sun 13/12
2:55 p.m.-7:10 p.m.
1 stop37h 15m
LondonIncheon
LHR London Heathrow - ICN Incheon Intl
LHRICN
London Heathrow
Fri 22/1
5:00 p.m.-7:00 p.m.
1 stop17h 00m
Incheon Intl
Thu 18/2
11:45 p.m.-5:40 p.m.
1 stop26h 55m
LondonIncheon
LHR London Heathrow - ICN Incheon Intl
LHRICN
London Heathrow
Fri 4/12
9:10 p.m.-5:15 p.m.
1 stop35h 05m
Incheon Intl
Tue 15/12
6:20 p.m.-7:10 p.m.
1 stop33h 50m
LondonIncheon
LHR London Heathrow - ICN Incheon Intl
LHRICN
London Heathrow
Wed 3/2
6:40 a.m.-7:00 p.m.
1 stop27h 20m
Incheon Intl
Thu 18/2
11:45 p.m.-9:20 a.m.
1 stop18h 35m
LondonIncheon
LHR London Heathrow - ICN Incheon Intl
LHRICN
London Heathrow
Mon 18/1
7:05 a.m.-7:00 p.m.
2 stops26h 55m
Incheon Intl
Tue 16/2
11:45 p.m.-9:20 a.m.
1 stop18h 35m
LondonIncheon
LGW London Gatwick - ICN Incheon Intl
LGWICN
London Gatwick
Thu 5/11
10:30 a.m.-3:20 p.m.
1 stop19h 50m
Incheon Intl
Mon 9/11
6:50 a.m.-6:30 a.m.
2 stops56h 40m
LondonIncheon
LHR London Heathrow - ICN Incheon Intl
LHRICN
London Heathrow
Wed 3/2
3:35 p.m.-7:00 p.m.
2 stops18h 25m
Incheon Intl
Fri 19/2
11:45 p.m.-9:20 a.m.
1 stop18h 35m
LondonIncheon
LHR London Heathrow - ICN Incheon Intl
LHRICN
London Heathrow
Sun 14/2
9:05 p.m.-7:00 p.m.
2 stops36h 55m
Incheon Intl
Thu 25/2
11:45 p.m.-9:20 a.m.
1 stop18h 35m
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?
Prices are currently low for flights on this route.
Typical prices usually range from C$ 1,015 to C$ 1,643.The lowest price recently found on this route was C$ 957.
What is the cheapest month to fly to Seoul?
The cheapest month to fly to Seoul from London is in January. Flight prices, which tend to average around C$ 896, are often lower during this time because this is during the off-season. If you’re not able to fly to Seoul in January, then November is your next best option. Flight prices from London to Seoul during November average around C$ 1,017.
What is the cheapest day to depart on your flight to Seoul?
Our data shows that Saturday is the least expensive day to fly to Seoul. Tickets to fly out on this day can be as low as C$ 1,441. The most expensive day to fly to Seoul is Friday, with ticket prices averaging around C$ 2,028.
What is the cheapest time of day to depart on your flight to Seoul?
The cheapest time of day to fly to Seoul is in the afternoon when flights can be purchased for as low as C$ 1,640. In the evening is when there is more demand to fly to Seoul, so prices are often more expensive at around C$ 1,886 per ticket.
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 from London 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 C$ 1,371 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seoul from London for as low as C$ 1,149 on momondo.
What cabin class options are available on London to Seoul flights?
There is only 1 cabin class 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 55% 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 October 2026, prices for London to Seoul flights are approximately 21% cheaper when compared to flights at the same time last year.
How many flights depart from London to Seoul on average per day?
As of October 2026, 6 flights take off from London and land in Seoul each day. The most common flight departure time for this route is 1:00p.m., with 60% of daily flights taking off in the afternoon.
How many flights depart from London to Seoul on average per week?
42 flights are operational weekly from London to Seoul as of October 2026. The most popular departure day for this route is Mon, with 14% of flights per week taking off on this day.
When to book flights from London to Seoul
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
Frequently asked questions about flying from London to Seoul
How far is London to Seoul by plane?
Seoul is 8853.6 km away from London. A reasonable flight in good conditions will take 12h 30m.
When did momondo last update prices for flights from London to Seoul?
Prices for flights from London to Seoul refresh daily.
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 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 Seoul.
What documentation or ID do you need to fly to Seoul?
The travel and health documents required for your trip to Seoul can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Seoul. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from London to Seoul?
Based on momondo bookings for flights between London and Seoul, the leading plane model is Boeing 787-9 Dreamliner, making up 34.71% of the total bookings. Other popular models include Boeing 777-300ER with 30.55%, Airbus A350-900 with 17.01%, and Airbus A350-1000 with 7.23%.
Why use momondo?
Why should I use momondo to find a flight deal from London to Seoul?
Finding the right flight to Seoul from London is quick and easy when you have a range of options in front of you, from reputable agents and recognizable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Seoul quick and easy, saving you time and money.
Can I find flights from London to Seoul with flexible booking policies on momondo?
All flight searches from London to Seoul on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights from London to Seoul?
momondo provides multiple filters to help you find the best flight to Seoul from London. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
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.