Cheap flights from Seoul to London Heathrow Airport from £165
This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 21/10. Fares are subject to change and may not be available on all flights or dates of travel.
SEL — LHR
22 Oct — 29 Oct1
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 23 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.
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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 22 September 2026.
Fri 20/1123:45 -
2 stops22h 10m
Sun 22/1106:40 -
1 stop27h 20m
Deal found 20/9£395
Tue 20/1009:25 -
1 stop16h 40m
Tue 27/1021:30 -
1 stop15h 40m
Deal found 20/9£420
Mon 19/1009:25 -
1 stop16h 40m
Mon 26/1021:30 -
1 stop15h 40m
Deal found 21/9£426
Tue 13/1015:15 -
1 stop36h 05m
Tue 3/1121:30 -
1 stop15h 40m
Deal found 21/9£427
Fri 16/1009:25 -
1 stop16h 40m
Mon 26/1021:30 -
1 stop15h 40m
Deal found 20/9£428
Thu 1/1022:45 -
1 stop23h 00m
Fri 2/1019:35 -
1 stop33h 20m
Deal found 20/9£429
Wed 21/1009:25 -
1 stop16h 40m
Wed 28/1017:15 -
1 stop34h 10m
Deal found 18/9£430
Mon 12/1015:15 -
1 stop36h 05m
Mon 26/1021:30 -
1 stop15h 40m
Deal found 20/9£431
Mon 19/1015:30 -
1 stop34h 10m
Mon 9/1117:45 -
1 stop18h 10m
Deal found 20/9£432
Wed 21/1015:15 -
1 stop36h 05m
Tue 10/1121:30 -
1 stop15h 40m
Deal found 19/9£433
Thu 12/1113:30 -
1 stop37h 25m
Wed 25/1121:30 -
1 stop29h 55m
Deal found 17/9£497
Wed 21/1013:30 -
1 stop36h 35m
Sun 25/1021:30 -
1 stop29h 55m
Deal found 21/9£499
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 22 September 2026.
Thu 21/123:45 -
1 stop26h 55m
Tue 26/121:05 -
2 stops36h 55m
Deal found 20/9£492
Fri 20/1114:55 -
1 stop37h 15m
Wed 2/1221:10 -
1 stop33h 50m
Deal found 21/9£493
Mon 15/213:30 -
1 stop18h 25m
Fri 19/208:45 -
1 stop17h 30m
Deal found 19/9£567
Wed 18/1108:35 -
2 stops21h 25m
Mon 23/1108:45 -
2 stops19h 20m
Deal found 18/9£571
Wed 23/1200:20 -
1 stop22h 05m
Sat 16/106:30 -
2 stops25h 45m
Deal found 19/9£784
Sat 19/1210:50 -
2 stops28h 05m
Sat 26/1208:25 -
2 stops37h 05m
Deal found 19/9£892
Fri 2/1019:45 -
2 stops31h 35m
Sun 11/1021:35 -
2 stops37h 10m
Deal found 18/9£917
Sun 11/1012:05 -
1 stop26h 20m
Tue 13/1009:10 -
1 stop24h 45m
Deal found 20/9£1,055
Tue 22/1214:55 -
1 stop37h 15m
Thu 7/122:30 -
1 stop32h 30m
Deal found 18/9£540
Thu 5/1123:45 -
1 stop26h 55m
Tue 10/1110:35 -
2 stops23h 25m
Deal found 17/9£548
Wed 23/1212:55 -
1 stop18h 25m
Sun 17/107:40 -
2 stops18h 20m
Deal found 19/9£603
Sun 22/1108:35 -
2 stops21h 25m
Mon 30/1108:45 -
2 stops19h 20m
Deal found 21/9£617
Wed 3/213:30 -
1 stop16h 30m
Fri 12/206:30 -
1 stop19h 30m
Deal found 20/9£700
Thu 7/112:55 -
2 stops28h 10m
Sat 16/108:30 -
2 stops17h 45m
Deal found 17/9£833
Wed 14/1019:15 -
1 stop19h 10m
Tue 20/1009:10 -
1 stop28h 05m
Deal found 17/9£1,060
Sun 20/1213:30 -
2 stops27h 15m
Fri 25/1207:40 -
2 stops18h 20m
Deal found 19/9£861
Tue 24/1119:40 -
1 stop19h 45m
Fri 27/1118:30 -
1 stop18h 35m
Deal found 21/9£1,082
Wed 18/1119:40 -
1 stop19h 45m
Tue 2/218:30 -
1 stop18h 35m
Deal found 20/9£1,083
Tue 24/1119:40 -
1 stop19h 45m
Thu 26/1118:30 -
1 stop18h 35m
Deal found 17/9£1,087
Fri 18/1212:05 -
1 stop27h 20m
Fri 25/1218:30 -
1 stop18h 35m
Deal found 19/9£1,106
Sat 19/1212:05 -
1 stop27h 20m
Fri 25/1218:30 -
1 stop18h 35m
Deal found 19/9£1,106
Wed 25/1119:40 -
1 stop19h 45m
Fri 27/1118:30 -
1 stop18h 35m
Deal found 21/9£1,107
Wed 25/1119:40 -
1 stop19h 45m
Sat 28/1118:30 -
1 stop18h 35m
Deal found 21/9£1,107
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 22 September 2026.
Thu 12/1113:25 -
Nonstop14h 30m
Wed 25/1114:15 -
Nonstop12h 20m
Deal found 22/9£641
Fri 20/1113:25 -
Nonstop14h 30m
Sun 22/1114:15 -
Nonstop12h 20m
Deal found 22/9£656
Sun 22/1113:25 -
Nonstop14h 30m
Sun 29/1114:15 -
Nonstop12h 20m
Deal found 22/9£659
Thu 12/1109:40 -
Nonstop14h 55m
Wed 25/1117:40 -
Nonstop12h 30m
Deal found 20/9£672
Tue 17/1109:40 -
Nonstop14h 55m
Sun 22/1117:40 -
Nonstop12h 30m
Deal found 18/9£673
Wed 4/1113:25 -
Nonstop14h 30m
Thu 12/1114:15 -
Nonstop12h 20m
Deal found 22/9£679
Wed 18/1109:40 -
Nonstop14h 55m
Sun 22/1117:40 -
Nonstop12h 30m
Deal found 19/9£681
Tue 17/1109:40 -
Nonstop14h 55m
Mon 23/1117:40 -
Nonstop12h 30m
Deal found 22/9£682
Wed 11/1109:40 -
Nonstop14h 55m
Sun 15/1117:40 -
Nonstop12h 30m
Deal found 21/9£683
Mon 23/1109:40 -
Nonstop14h 55m
Mon 30/1117:40 -
Nonstop12h 30m
Deal found 21/9£685
Fri 20/1109:40 -
Nonstop14h 55m
Wed 25/1117:40 -
Nonstop12h 30m
Deal found 22/9£688
Last-minute flights from Seoul to Heathrow
Discover last-minute flight deals from Seoul to Heathrow. Data last updated 22 September 2026 and is based on user searches.
Thu 1/1022:45 -
1 stop23h 00m
Fri 2/1019:35 -
1 stop33h 20m
Deal found 20/9£429
Sun 11/1016:45 -
1 stop34h 35m
Sat 14/1121:30 -
1 stop15h 40m
Deal found 21/9£435
Mon 12/1015:15 -
1 stop36h 05m
Mon 26/1021:30 -
1 stop15h 40m
Deal found 20/9£431
Tue 13/1015:15 -
1 stop36h 05m
Tue 3/1121:30 -
1 stop15h 40m
Deal found 21/9£427
Tue 13/1013:30 -
1 stop36h 35m
Mon 19/1021:00 -
1 stop31h 25m
Deal found 19/9£502
Fri 16/1009:25 -
1 stop16h 40m
Mon 26/1021:30 -
1 stop15h 40m
Deal found 20/9£428
Mon 19/1009:25 -
1 stop16h 40m
Mon 26/1021:30 -
1 stop15h 40m
Deal found 21/9£426
Mon 19/1015:30 -
1 stop34h 10m
Mon 9/1117:45 -
1 stop18h 10m
Deal found 20/9£432
Tue 20/1009:25 -
1 stop16h 40m
Tue 27/1021:30 -
1 stop15h 40m
Deal found 20/9£420
Wed 21/1009:25 -
1 stop16h 40m
Wed 28/1017:15 -
1 stop34h 10m
Deal found 18/9£430
Wed 21/1015:15 -
1 stop36h 05m
Tue 10/1121:30 -
1 stop15h 40m
Deal found 19/9£433
Wed 21/1013:30 -
1 stop36h 35m
Sun 25/1021:30 -
1 stop29h 55m
Deal found 21/9£499
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 22 September 2026.
Wed 21/1009:25 -
1 stop16h 40m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 21/9£165
Sat 17/1009:25 -
1 stop16h 40m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 19/9£169
Sat 10/1016:20 -
1 stop34h 20m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 19/9£170
Fri 9/1016:15 -
1 stop34h 25m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 17/9£171
Mon 12/1015:15 -
1 stop36h 05m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 21/9£173
Sun 11/1016:45 -
1 stop34h 35m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 20/9£173
Thu 1/1022:45 -
1 stop23h 00m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 21/9£175
Tue 27/1018:25 -
1 stop32h 05m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 20/9£176
Mon 19/1012:55 -
1 stop37h 45m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 20/9£176
Mon 19/1012:55 -
1 stop37h 45m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 19/9£178
Tue 17/1120:50 -
1 stop29h 40m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 19/9£212
Wed 21/1018:15 -
2 stops56h 25m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 21/9£213
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 22 September 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 22 September 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
Fri 9/10
16:15-20:05
2 stops35h 50m
London Heathrow
Wed 31/12
00:00-08:00
Nonstop0h 00m
£226
IncheonLondon
ICN Incheon Intl - LHR London Heathrow
ICNLHR
Incheon Intl
Sun 1/11
15:15-18:35
1 stop36h 20m
London Heathrow
Wed 31/12
00:00-08:00
Nonstop0h 00m
£259
SeoulLondon
GMP Seoul Gimpo Intl - LHR London Heathrow
GMPLHR
Seoul Gimpo Intl
Wed 9/12
07:45-20:30
2 stops45h 45m
London Heathrow
Wed 31/12
00:00-08:00
Nonstop0h 00m
£260
IncheonLondon
ICN Incheon Intl - LHR London Heathrow
ICNLHR
Incheon Intl
Thu 8/10
21:15-20:00
2 stops30h 45m
London Heathrow
Wed 31/12
00:00-08:00
Nonstop0h 00m
£277
SeoulLondon
GMP Seoul Gimpo Intl - LHR London Heathrow
GMPLHR
Seoul Gimpo Intl
Thu 17/12
09:45-17:30
2 stops40h 45m
London Heathrow
Wed 31/12
00:00-08:00
Nonstop0h 00m
£277
IncheonLondon
ICN Incheon Intl - LHR London Heathrow
ICNLHR
Incheon Intl
Sat 7/11
14:55-19:10
1 stop37h 15m
London Heathrow
Wed 31/12
00:00-08:00
Nonstop0h 00m
£296
IncheonLondon
ICN Incheon Intl - LHR London Heathrow
ICNLHR
Incheon Intl
Sat 3/10
16:20-18:40
1 stop34h 20m
London Heathrow
Wed 31/12
00:00-08:00
Nonstop0h 00m
£327
SeoulLondon
GMP Seoul Gimpo Intl - LHR London Heathrow
GMPLHR
Seoul Gimpo Intl
Wed 2/12
08:35-21:00
2 stops21h 25m
London Heathrow
Wed 31/12
00:00-08:00
Nonstop0h 00m
£345
SeoulLondon
GMP Seoul Gimpo Intl - LHR London Heathrow
GMPLHR
Seoul Gimpo Intl
Sun 6/12
08:35-22:55
2 stops23h 20m
London Heathrow
Wed 31/12
00:00-08:00
Nonstop0h 00m
£345
SeoulLondon
GMP Seoul Gimpo Intl - LHR London Heathrow
GMPLHR
Seoul Gimpo Intl
Wed 11/11
08:35-22:55
2 stops23h 20m
London Heathrow
Wed 31/12
00:00-08:00
Nonstop0h 00m
£345
Flights are sorted by cheapest return flights first.
Deals found on 17/9
Showing 1-10 of 45 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
GMP-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
GMP-LHR
What is the cheapest month to book a flight from Seoul to London Heathrow Airport?
Currently, November is the cheapest month in which you can book a flight from Seoul to London Heathrow Airport (average of £513). Flying from Seoul to London Heathrow Airport in August is currently the most expensive (average of £790). 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 22 September 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 22 September 2026.
The most flights from SEL to LHR are scheduled on a Monday (4 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (2 on average).
How much does it cost for a return flight from Seoul to London Heathrow Airport?
Airfare is below average for this route at the moment.
Seoul to London Heathrow Airport flights typically cost between £605 and £981 in November.The cheapest return price found within the last 5 days was £395 on Scandinavian Airlines (20 Nov–22 Nov).
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.
Beijing (PEK) – chosen by Cheapflights users on 27% 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 £349.
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 Amsterdam (AMS) offer the fastest connection on this route, with an average stopover time of 1h 48m.
How far ahead should I book a flight from Seoul to London Heathrow Airport?
Booking 82 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 22 September 2026.
Read reviews from past customers who have flown with Asiana Airlines,Air China, 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.
Food was better and a smaller business class made the experience more personal.
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?
Scandinavian Airlines, Lufthansa, and Japan Airlines can get you from Seoul to London Heathrow Airport in just under 18h 25m. Your travel time can differ by up to 9h 20m. 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 £466, 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 30% 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 £120. However, be on the lookout for offers from Air China and Etihad Airways, 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 (86%), Korean Air (83%), Asiana Airlines (61%).
What are the cheapest flights from Seoul to London Heathrow Airport?
Looking at all options, your cheapest flight can be booked for £375. While the most popular route (Incheon Intl - London Heathrow) can be booked for £395 on average, our data indicates £959 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, November is the cheapest month in which you can book a flight from Seoul to London Heathrow Airport (average of £513). Flying from Seoul to London Heathrow Airport in August is currently the most expensive (average of £790). 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 22 September 2026.
Discover the top 3 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 22 September 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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