Cheap flights from Seoul to London Heathrow Airport from £174
This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 20/11. Fares are subject to change and may not be available on all flights or dates of travel.
SEL — LHR
5 Dec — 12 Dec1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Seoul to London Heathrow are usually found in November or February, booked 48 days in advance, depart on a Monday or Saturday and return on a Monday
Cheap flight deals from Seoul to Heathrow
Enter your travel dates to find the best prices.
Cheapest
Best
Direct
Last-minute
One-way
Cheapest flights from Seoul to Heathrow
Explore the most affordable flight options available from Seoul to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 November 2026.
Fri 4/1223:45 -
1 stop27h 45m
Thu 10/1206:40 -
1 stop27h 20m
Deal found 3/11£497
Mon 21/1218:20 -
1 stop35h 10m
Wed 30/1221:10 -
1 stop31h 45m
Deal found 2/11£497
Sat 19/1214:55 -
1 stop37h 15m
Mon 4/121:10 -
1 stop31h 45m
Deal found 2/11£502
Sun 20/1209:25 -
1 stop18h 10m
Sun 3/121:30 -
1 stop15h 40m
Deal found 2/11£504
Sat 21/1109:25 -
1 stop18h 10m
Mon 23/1121:30 -
1 stop15h 40m
Deal found 2/11£505
Mon 16/1109:25 -
1 stop18h 10m
Sun 22/1121:30 -
1 stop15h 40m
Deal found 2/11£505
Thu 12/1108:55 -
1 stop17h 35m
Tue 17/1121:30 -
1 stop15h 40m
Deal found 31/10£506
Tue 8/1212:15 -
1 stop38h 05m
Mon 14/1218:20 -
1 stop27h 40m
Deal found 1/11£507
Sat 5/1223:45 -
2 stops23h 50m
Wed 9/1210:35 -
2 stops23h 25m
Deal found 2/11£508
Mon 16/1112:15 -
1 stop30h 20m
Fri 20/1110:35 -
1 stop35h 25m
Deal found 2/11£508
Tue 8/1212:15 -
1 stop30h 20m
Sat 12/1218:20 -
1 stop31h 10m
Deal found 1/11£510
Best flights from Seoul to Heathrow
Discover carefully curated flight deals from Seoul to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 5 November 2026.
Tue 15/1213:10 -
1 stop35h 45m
Tue 22/1222:30 -
1 stop30h 25m
Deal found 30/10£525
Fri 15/113:20 -
2 stops30h 05m
Sun 24/108:40 -
2 stops17h 35m
Deal found 2/11£657
Fri 20/1113:30 -
Nonstop14h 10m
Thu 26/1114:30 -
Nonstop12h 10m
Deal found 30/10£666
Tue 15/1223:45 -
1 stop27h 45m
Tue 22/1218:05 -
2 stops39h 55m
Deal found 30/10£688
Fri 27/1118:30 -
1 stop22h 30m
Wed 2/1214:55 -
1 stop17h 20m
Deal found 31/10£729
Tue 24/1108:20 -
2 stops23h 35m
Tue 1/1211:10 -
1 stop15h 05m
Deal found 3/11£612
Sun 6/1213:25 -
Nonstop14h 30m
Tue 8/1218:50 -
Nonstop12h 35m
Deal found 31/10£738
Tue 17/1123:45 -
2 stops23h 50m
Sun 22/1109:55 -
2 stops24h 05m
Deal found 30/10£745
Mon 16/1113:30 -
Nonstop14h 25m
Mon 23/1114:30 -
Nonstop12h 10m
Deal found 2/11£738
Thu 26/1123:45 -
2 stops23h 50m
Wed 2/1217:30 -
2 stops40h 30m
Deal found 3/11£783
Thu 24/1223:45 -
2 stops30h 35m
Tue 29/1218:05 -
2 stops39h 55m
Deal found 3/11£787
Thu 26/1113:25 -
Nonstop14h 30m
Tue 1/1214:15 -
Nonstop12h 20m
Deal found 4/11£836
Direct flights from Seoul to Heathrow
Explore direct flight options from Seoul to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 5 November 2026.
Wed 18/1113:25 -
Nonstop14h 30m
Sun 22/1114:30 -
Nonstop12h 10m
Deal found 31/10£654
Mon 23/1113:30 -
Nonstop14h 25m
Mon 7/1214:15 -
Nonstop12h 20m
Deal found 2/11£655
Mon 30/1113:30 -
Nonstop14h 25m
Wed 2/1214:15 -
Nonstop12h 20m
Deal found 31/10£658
Tue 24/1113:30 -
Nonstop14h 25m
Tue 1/1214:15 -
Nonstop12h 20m
Deal found 31/10£660
Fri 27/1113:30 -
Nonstop14h 10m
Mon 30/1114:30 -
Nonstop12h 10m
Deal found 31/10£665
Fri 27/1113:30 -
Nonstop14h 10m
Sun 29/1114:30 -
Nonstop12h 10m
Deal found 31/10£667
Wed 2/1213:25 -
Nonstop14h 30m
Wed 9/1214:15 -
Nonstop12h 20m
Deal found 2/11£672
Wed 16/1213:25 -
Nonstop14h 30m
Sun 10/114:15 -
Nonstop12h 20m
Deal found 31/10£673
Mon 30/1113:30 -
Nonstop14h 25m
Fri 4/1214:15 -
Nonstop12h 20m
Deal found 1/11£681
Mon 23/1109:40 -
Nonstop14h 55m
Tue 1/1217:40 -
Nonstop12h 30m
Deal found 31/10£687
Last-minute flights from Seoul to Heathrow
Discover last-minute flight deals from Seoul to Heathrow. Data last updated 5 November 2026 and is based on user searches.
Mon 9/1116:15 -
1 stop35h 20m
Mon 16/1121:00 -
2 stops32h 40m
Deal found 2/11£520
Mon 9/1116:15 -
1 stop35h 20m
Sat 14/1121:00 -
3 stops31h 15m
Deal found 31/10£523
Mon 9/1115:15 -
1 stop36h 20m
Wed 11/1121:00 -
1 stop29h 55m
Deal found 2/11£526
Tue 10/1109:25 -
1 stop18h 10m
Fri 20/1121:30 -
1 stop15h 40m
Deal found 2/11£505
Tue 10/1114:55 -
1 stop37h 15m
Sat 14/1121:10 -
1 stop31h 45m
Deal found 31/10£507
Tue 10/1116:10 -
1 stop34h 20m
Fri 13/1121:00 -
1 stop14h 45m
Deal found 31/10£513
Thu 12/1108:55 -
1 stop17h 35m
Tue 17/1121:30 -
1 stop15h 40m
Deal found 31/10£506
Thu 12/1108:55 -
1 stop17h 35m
Sat 14/1121:00 -
1 stop29h 55m
Deal found 31/10£511
Thu 12/1113:20 -
1 stop17h 05m
Thu 10/1211:30 -
1 stop14h 45m
Deal found 3/11£521
Sat 14/1109:25 -
1 stop18h 10m
Fri 20/1121:30 -
1 stop15h 40m
Deal found 31/10£514
One-way flights from Seoul to Heathrow
Search for one-way flight options from Seoul to Heathrow. Find affordable one-way fares based on user searches. Data last updated 5 November 2026.
Fri 20/1109:10 -
1 stop18h 25m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 3/11£174
Mon 9/1115:15 -
1 stop36h 20m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 30/10£174
Wed 11/1109:25 -
1 stop18h 10m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 30/10£175
Fri 11/1209:25 -
1 stop17h 30m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 2/11£176
Mon 23/1109:25 -
1 stop18h 10m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 1/11£177
Thu 12/1109:25 -
1 stop17h 30m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 30/10£177
Tue 1/1215:15 -
1 stop36h 20m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 1/11£178
Tue 17/1116:15 -
1 stop35h 20m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 2/11£179
Thu 19/1109:25 -
1 stop17h 30m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 1/11£180
Wed 16/1209:25 -
1 stop18h 10m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 1/11£182
Find flight deals from Seoul to Heathrow
Discover tips and strategies to find the most affordable flight options for your journey from Seoul (SEL) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 5 November 2026.
Customise your flight search to find flights from Seoul to Heathrow 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, Cheapflights users made 7,457,451 searches. Data last updated 5 November 2026.
Use the filters below to find and compare flights from Seoul to London Heathrow Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
Cheapest return flight
IncheonLondon
ICN Incheon Intl - LHR London Heathrow
ICNLHR
Incheon Intl
Tue 10/11
09:25-18:35
1 stop18h 10m
London Heathrow
Wed 31/12
00:00-08:00
Nonstop0h 00m
£176
IncheonLondon
ICN Incheon Intl - LHR London Heathrow
ICNLHR
Incheon Intl
Wed 2/12
13:25-18:55
Nonstop14h 30m
London Heathrow
Wed 31/12
00:00-08:00
Nonstop0h 00m
£406
IncheonLondon
ICN Incheon Intl - LHR London Heathrow
ICNLHR
Incheon Intl
Wed 3/3
13:25-18:55
Nonstop14h 30m
London Heathrow
Wed 31/12
00:00-08:00
Nonstop0h 00m
£409
Fastest return journey
IncheonLondon
ICN Incheon Intl - LHR London Heathrow
ICNLHR
Incheon Intl
Fri 2/4
11:35-18:00
Nonstop14h 25m
London Heathrow
Wed 31/12
00:00-08:00
Nonstop0h 00m
£409
IncheonLondon
ICN Incheon Intl - LHR London Heathrow
ICNLHR
Incheon Intl
Fri 11/12
10:40-16:30
Nonstop14h 50m
London Heathrow
Wed 31/12
00:00-08:00
Nonstop0h 00m
£435
IncheonLondon
ICN Incheon Intl - LHR London Heathrow
ICNLHR
Incheon Intl
Thu 17/12
10:40-16:30
Nonstop14h 50m
London Heathrow
Wed 31/12
00:00-08:00
Nonstop0h 00m
£435
IncheonLondon
ICN Incheon Intl - LHR London Heathrow
ICNLHR
Incheon Intl
Sat 14/11
08:30-06:25
3 stops30h 55m
London Heathrow
Wed 31/12
00:00-08:00
Nonstop0h 00m
£451
IncheonLondon
ICN Incheon Intl - LHR London Heathrow
ICNLHR
Incheon Intl
Mon 16/11
09:40-15:35
Nonstop14h 55m
London Heathrow
Wed 31/12
00:00-08:00
Nonstop0h 00m
£457
IncheonLondon
ICN Incheon Intl - LHR London Heathrow
ICNLHR
Incheon Intl
Mon 3/5
10:55-17:20
Nonstop14h 25m
London Heathrow
Wed 31/12
00:00-08:00
Nonstop0h 00m
£467
IncheonLondon
ICN Incheon Intl - LHR London Heathrow
ICNLHR
Incheon Intl
Sun 11/4
11:00-06:30
2 stops27h 30m
London Heathrow
Wed 31/12
00:00-08:00
Nonstop0h 00m
£485
Flights are sorted by cheapest return flights first.
Deals found on 30/10
Showing 1-10 of 23 resultsSorted by cheapest first
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Best time to book a flight from Seoul to Heathrow
Have a flexible travel schedule? Discover the best time to fly to Heathrow from Seoul with our price prediction graph.
SEL-LHR
ICN-LHR
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Seoul to London Heathrow Airport
SEL-LHR
ICN-LHR
What is the cheapest month to book a flight from Seoul to London Heathrow Airport?
Currently, May is the cheapest month in which you can book a flight from Seoul to London Heathrow Airport (average of £580). Flying from Seoul to London Heathrow Airport in August is currently the most expensive (average of £785). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from SEL to LHR?
Find hourly flight availability from Seoul to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 5 November 2026.
When flying from Seoul to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Weekly flight availability from Seoul to London Heathrow Airport
Explore weekly flight availability from Seoul to Heathrow. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 5 November 2026.
The most flights from SEL to LHR are scheduled on a Monday (5 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (3 on average).
How much does it cost for a return flight from Seoul to London Heathrow Airport?
Airfare is typical for this route at the moment.
Seoul to London Heathrow Airport flights typically cost between £348 and £543 in December.The cheapest return price found within the last 5 days was £497 on Scandinavian Airlines (4 Dec–10 Dec).
What’s the top stopover airport for flights from Seoul to London Heathrow Airport?
Share of one-stop return flights from Seoul to London Heathrow Airport chosen by Cheapflights users in the past 12 months, using the same stopover each way.
Shanghai (PVG) – chosen by Cheapflights users on 33% of one-stop itineraries from Seoul to London Heathrow Airport on Cheapflights.
What’s the cheapest stopover airport for flights from Seoul to London Heathrow Airport?
Average return fare for one-stop flights from Seoul to London Heathrow Airport, chosen by Cheapflights users in the past 12 months, with the same stopover each way.
Shenzhen (SZX) is the most affordable one-stop option, with an average return flight price of £346.
What’s the fastest stopover option from Seoul to London Heathrow Airport?
Shortest average travel time for one-stop one-way flights from Seoul to London Heathrow Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.
Flights via Beijing (PEK) have the shortest average one-way travel time for one-stop routes: 15h 18m.
Which airport typically offers the quickest stopover for flights from Seoul to London Heathrow Airport?
Average stopover duration for one-stop one-way flights from Seoul to London Heathrow Airport, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Copenhagen (CPH) offer the fastest connection on this route, with an average stopover time of 1h 53m.
How far ahead should I book a flight from Seoul to London Heathrow Airport?
Booking 41 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seoul to London Heathrow Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Reviews of airlines servicing Heathrow
Get insights into the airlines that provide service to Heathrow. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Heathrow. Reviews last updated 5 November 2026.
Read reviews from past customers who have flown with Korean Air,Asiana Airlines, andVirgin Atlantic
from Seoul to London Heathrow Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Related info for your journey
Find useful and relevant information for your journey from Seoul to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
How long is the flight from Seoul to London Heathrow Airport?
KLM, Virgin Atlantic, and Scandinavian Airlines can get you from Seoul to London Heathrow Airport in just under 14h 10m. Your travel time can differ by up to 15h 55m. Airlines will cover a distance of 5503 mi. This flight may include one or multiple stops.
What are the cheapest airlines flying from Seoul to London Heathrow Airport round-trip?
Air China, at £463, was found to be the cheapest airline from Seoul to London Heathrow Airport.Alternate airlines flying return to your destination include Asiana Airlines and Virgin Atlantic. These flights start at 32% lower than the current average price 3 months from now.
What are the cheapest airlines to fly from Seoul to London Heathrow Airport one-way?
The cheapest airline one-way is China Eastern, with whom users have recently found tickets for as low as £119. However, be on the lookout for offers from China Southern and Air China, as they are both options that can get you from Seoul to London Heathrow Airport for a low price.
What are the most reliable airlines from Seoul to London Heathrow Airport?
Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Seoul to London Heathrow Airport on time: Virgin Atlantic (87%), China Airlines (85%), Korean Air (84%).
What are the cheapest flights from Seoul to London Heathrow Airport?
Looking at all options, your cheapest flight can be booked for £373. While the most popular route (Incheon Intl - London Heathrow) can be booked for £377 on average, our data indicates £626 when flying from Seoul to London Heathrow Airport.
Can I find deals for business class flights from Seoul to Heathrow?
Yes. Cheapflights offers flight deals from Seoul to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Seoul to London Heathrow Airport?
Currently, May is the cheapest month in which you can book a flight from Seoul to London Heathrow Airport (average of £580). Flying from Seoul to London Heathrow Airport in August is currently the most expensive (average of £785). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Explore flights to Heathrow departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 5 November 2026.
Discover the top 4 airlines that operate flights from Seoul to Heathrow. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated 5 November 2026.
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Seoul to Heathrow?
900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Heathrow from Seoul today with Cheapflights!
Why should you use Cheapflights to find cheap flight tickets from Seoul to Heathrow?
It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Seoul to Heathrow.
Can Cheapflights find flights from Seoul to Heathrow with no change fees?
Users can book flights with no change fees policies with our dedicated filters. Book flights from Seoul to Heathrow flexibly with Cheapflights today.
Can Cheapflights notify me if prices for flights from Seoul to Heathrow become cheaper?
Yes! Start tracking prices for Seoul to Heathrow flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.
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