$233+ Cheap flights from Seoul (SEL) to Heathrow (LHR)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/19. Fares are subject to change and may not be available on all flights or dates of travel.
SEL — LHR
Nov 6 — Nov 131
Round-trip
1 adult, Economy
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Find cheap flights from Seoul to Heathrow with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.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 Friday or Tuesday and return on a Monday
Cheap flight deals from Seoul to Heathrow
Cheapest
Best
Last-minute
One-way
Cheapest flights from Seoul to HeathrowExplore 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 October 7, 2026.
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 October 7, 2026.
This Shenzhen Airlines deal was found by Cheapflights users on 10/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Shenzhen Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/72:55 pm -
1 stop37h 15m
Sat 11/149:10 pm -
1 stop35h 05m
Deal found 10/6![Shenzhen Airlines logo]()
$665
This Shenzhen Airlines deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Shenzhen Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/86:20 pm -
1 stop33h 50m
Fri 11/139:10 pm -
1 stop35h 05m
Deal found 10/7![Shenzhen Airlines logo]()
$666
This Shenzhen Airlines deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Shenzhen Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/72:55 pm -
1 stop37h 15m
Fri 11/139:10 pm -
1 stop35h 05m
Deal found 10/7![Shenzhen Airlines logo]()
$667
This Scandinavian Airlines deal was found by Cheapflights users on 10/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/111:45 pm -
2 stops23h 50m
Tue 12/86:05 pm -
2 stops39h 55m
Deal found 10/6![Scandinavian Airlines logo]()
$672
This FlightHub deal was found by Cheapflights users on 10/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/192:55 pm -
1 stop37h 15m
Fri 12/255:45 pm -
1 stop18h 10m
Deal found 10/5![Multiple Airlines logo]()
$677
This Scandinavian Airlines deal was found by Cheapflights users on 10/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/511:45 pm -
1 stop18h 35m
Wed 12/910:35 am -
2 stops23h 25m
Deal found 10/6![Scandinavian Airlines logo]()
$685
This Scandinavian Airlines deal was found by Cheapflights users on 10/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2511:45 pm -
1 stop27h 45m
Wed 12/25:30 pm -
2 stops40h 30m
Deal found 10/6![Scandinavian Airlines logo]()
$686
This Scandinavian Airlines deal was found by Cheapflights users on 10/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/111:45 pm -
1 stop27h 45m
Sat 12/55:30 pm -
2 stops40h 30m
Deal found 10/5![Scandinavian Airlines logo]()
$688
This Scandinavian Airlines deal was found by Cheapflights users on 10/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/511:45 pm -
1 stop26h 55m
Tue 11/1010:35 am -
2 stops23h 25m
Deal found 10/5![Scandinavian Airlines logo]()
$689
This Scandinavian Airlines deal was found by Cheapflights users on 10/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/211:45 pm -
1 stop27h 45m
Sat 12/55:30 pm -
2 stops40h 30m
Deal found 10/5![Scandinavian Airlines logo]()
$691
This Scandinavian Airlines deal was found by Cheapflights users on 10/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1211:45 pm -
2 stops23h 50m
Tue 11/1710:35 am -
2 stops23h 25m
Deal found 10/6![Scandinavian Airlines logo]()
$692
Best flights from Seoul to HeathrowDiscover carefully curated flight deals from Seoul to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 7, 2026.
Discover carefully curated flight deals from Seoul to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 7, 2026.
This Lufthansa deal was found by Cheapflights users on 10/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/3012:55 pm -
2 stops28h 10m
Thu 12/108:30 am -
2 stops17h 45m
Deal found 10/2![Lufthansa logo]()
$852
This KLM deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/91:20 pm -
2 stops30h 25m
Mon 11/165:05 pm -
1 stop14h 50m
Deal found 10/7![KLM logo]()
$886
This ITA Airways deal was found by Cheapflights users on 10/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure ITA Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/171:30 pm -
2 stops26h 55m
Tue 1/2611:10 am -
1 stop15h 05m
Deal found 10/3![Multiple Airlines logo]()
$890
This Korean Air deal was found by Cheapflights users on 10/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/1810:40 am -
Nonstop14h 50m
Tue 1/266:50 pm -
Nonstop12h 35m
Deal found 10/3![Korean Air logo]()
$992
This Korean Air deal was found by Cheapflights users on 10/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/1210:40 am -
Nonstop14h 50m
Wed 1/276:50 pm -
Nonstop12h 35m
Deal found 10/3![Korean Air logo]()
$992
This Korean Air deal was found by Cheapflights users on 10/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2310:40 am -
Nonstop14h 50m
Sun 1/106:50 pm -
Nonstop12h 35m
Deal found 10/4![Korean Air logo]()
$992
This Korean Air deal was found by Cheapflights users on 10/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2410:40 am -
Nonstop14h 50m
Mon 1/186:50 pm -
Nonstop12h 35m
Deal found 10/4![Korean Air logo]()
$992
This Korean Air deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/1910:40 am -
Nonstop14h 50m
Sat 12/266:50 pm -
Nonstop12h 35m
Deal found 10/7![Korean Air logo]()
$1,072
Last-minute flights from Seoul to HeathrowDiscover last-minute flight deals from Seoul to Heathrow. Data last updated October 7, 2026 and is based on user searches.
Discover last-minute flight deals from Seoul to Heathrow. Data last updated October 7, 2026 and is based on user searches.
This FlightHub deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/171:05 pm -
1 stop15h 20m
Sun 10/259:10 pm -
1 stop31h 45m
Deal found 10/7![Multiple Airlines logo]()
$703
This Air China deal was found by Cheapflights users on 10/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air China is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/22:55 pm -
1 stop38h 00m
Tue 11/109:50 pm -
1 stop30h 05m
Deal found 10/4![Air China logo]()
$700
This Scandinavian Airlines deal was found by Cheapflights users on 10/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/511:45 pm -
1 stop26h 55m
Tue 11/1010:35 am -
2 stops23h 25m
Deal found 10/5![Scandinavian Airlines logo]()
$689
This CheapOair deal was found by Cheapflights users on 10/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/58:55 am -
1 stop17h 35m
Thu 11/129:00 pm -
2 stops29h 15m
Deal found 10/4![China Eastern logo]()
$721
This Shenzhen Airlines deal was found by Cheapflights users on 10/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Shenzhen Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/72:55 pm -
1 stop37h 15m
Sat 11/149:10 pm -
1 stop35h 05m
Deal found 10/6![Shenzhen Airlines logo]()
$665
This Shenzhen Airlines deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Shenzhen Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/86:20 pm -
1 stop33h 50m
Sat 11/149:10 pm -
1 stop35h 05m
Deal found 10/7![Shenzhen Airlines logo]()
$666
This Scandinavian Airlines deal was found by Cheapflights users on 10/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1211:45 pm -
2 stops23h 50m
Tue 11/1710:35 am -
2 stops23h 25m
Deal found 10/6![Scandinavian Airlines logo]()
$692
This Scandinavian Airlines deal was found by Cheapflights users on 10/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2511:45 pm -
1 stop27h 45m
Wed 12/25:30 pm -
2 stops40h 30m
Deal found 10/6![Scandinavian Airlines logo]()
$686
This Scandinavian Airlines deal was found by Cheapflights users on 10/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2511:45 pm -
1 stop27h 45m
Sat 11/285:30 pm -
2 stops40h 30m
Deal found 10/5![Scandinavian Airlines logo]()
$694
This Scandinavian Airlines deal was found by Cheapflights users on 10/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2711:45 pm -
2 stops42h 10m
Mon 11/306:40 am -
1 stop27h 20m
Deal found 10/5![Scandinavian Airlines logo]()
$707
One-way flights from Seoul to HeathrowSearch for one-way flight options from Seoul to Heathrow. Find affordable one-way fares based on user searches. Data last updated October 7, 2026.
Search for one-way flight options from Seoul to Heathrow. Find affordable one-way fares based on user searches. Data last updated October 7, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/198:55 am -
1 stop17h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/6![China Eastern logo]()
$233
This Kiwi.com deal was found by Cheapflights users on 10/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/258:55 am -
1 stop17h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/4![China Eastern logo]()
$234
This Kiwi.com deal was found by Cheapflights users on 10/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/176:25 pm -
1 stop32h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/5![China Eastern logo]()
$238
This FlightHub deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/196:25 pm -
1 stop32h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/7![China Eastern logo]()
$241
This FlightHub deal was found by Cheapflights users on 10/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:25 pm -
1 stop32h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/5![China Eastern logo]()
$242
This Kiwi.com deal was found by Cheapflights users on 10/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/241:20 pm -
1 stop26h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/4![XiamenAir logo]()
$272
This Kiwi.com deal was found by Cheapflights users on 10/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/286:25 pm -
1 stop32h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/4![China Eastern logo]()
$276
This FlightHub deal was found by Cheapflights users on 10/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/262:55 pm -
1 stop37h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/4![Shenzhen Airlines logo]()
$280
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 October 7, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $663 (Scandinavian Airlines) |
One-way from | $233 (Kiwi.com) |
Popular in | October |
Cheapest in | November |
Average price | $1,173 |
Good round-trip deal | $803 or less |
Good one-way deal | $620 or less |
Cheapflights Fare Finder
Customize 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 October 7, 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
Cheapest round-trip
IncheonLondon
ICN Incheon Intl - LHR London Heathrow
ICNLHR
Incheon Intl
Thu 11/26
1:25 pm-6:55 pm
Nonstop14h 30m
London Heathrow
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$548
IncheonLondon
ICN Incheon Intl - LHR London Heathrow
ICNLHR
Incheon Intl
Tue 11/17
1:25 pm-6:55 pm
Nonstop14h 30m
London Heathrow
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$548
IncheonLondon
ICN Incheon Intl - LHR London Heathrow
ICNLHR
Incheon Intl
Mon 3/8
1:25 pm-6:55 pm
Nonstop14h 30m
London Heathrow
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$549
IncheonLondon
ICN Incheon Intl - LHR London Heathrow
ICNLHR
Incheon Intl
Fri 11/20
2:15 pm-7:10 pm
2 stops61h 55m
London Heathrow
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$566
IncheonLondon
ICN Incheon Intl - LHR London Heathrow
ICNLHR
Incheon Intl
Thu 11/19
10:40 am-4:30 pm
Nonstop14h 50m
London Heathrow
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$581
IncheonLondon
ICN Incheon Intl - LHR London Heathrow
ICNLHR
Incheon Intl
Mon 2/15
10:40 am-4:30 pm
Nonstop14h 50m
London Heathrow
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$583
IncheonLondon
ICN Incheon Intl - LHR London Heathrow
ICNLHR
Incheon Intl
Mon 12/28
10:40 am-4:30 pm
Nonstop14h 50m
London Heathrow
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$583
Quickest round-trip
IncheonLondon
ICN Incheon Intl - LHR London Heathrow
ICNLHR
Incheon Intl
Fri 10/16
12:25 pm-6:50 pm
Nonstop14h 25m
London Heathrow
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$593
IncheonLondon
ICN Incheon Intl - LHR London Heathrow
ICNLHR
Incheon Intl
Wed 3/10
10:40 am-4:30 pm
Nonstop14h 50m
London Heathrow
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$608
IncheonLondon
ICN Incheon Intl - LHR London Heathrow
ICNLHR
Incheon Intl
Mon 3/8
10:40 am-4:30 pm
Nonstop14h 50m
London Heathrow
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$610
Showing 1-10 of 19 resultsSorted by cheapest first
Compare providers for flights from Seoul to Heathrow
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seoul to Heathrow in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Seoul-London Heathrow Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seoul-London Heathrow Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seoul-London Heathrow Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Seoul-London Heathrow Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seoul-London Heathrow Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
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 round-trip 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, November is the cheapest month in which you can book a flight from Seoul to London Heathrow Airport (average of $745). Flying from Seoul to London Heathrow Airport in August is currently the most expensive (average of $1,057). 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 October 7, 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seoul to London Heathrow Airport as you normally would.
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 October 7, 2026.
The most flights from SEL to LHR are scheduled on a Monday (5 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (3 on average).
How much does it cost to fly round-trip 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 $898 and $1,623 in January.The cheapest round-trip price found within the last 5 days was $663 on Scandinavian Airlines (Jan 12-Jan 27).
What’s the top layover airport for flights from Seoul to London Heathrow Airport?
Share of 1-stop round-trip flights from Seoul to London Heathrow Airport chosen by Cheapflights users in the past 12 months, using the same layover each way.
Frankfurt am Main (FRA) – chosen by Cheapflights users on 38% of 1-stop itineraries from Seoul to London Heathrow Airport on Cheapflights.
What’s the cheapest layover airport for flights from Seoul to London Heathrow Airport?
Average round-trip fare for 1-stop flights from Seoul to London Heathrow Airport, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Frankfurt am Main (FRA) is the most affordable 1-stop option, with an average round-trip price of $757.
What’s the fastest layover option from Seoul to London Heathrow Airport?
Shortest average travel time for 1-stop one-way flights from Seoul to London Heathrow Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Beijing (PKX) have the shortest average one-way travel time for 1-stop routes: 16h 32m.
Which airport typically offers the quickest layover for flights from Seoul to London Heathrow Airport?
Average layover duration for 1-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 Frankfurt am Main (FRA) offer the fastest connection on this route, with an average layover time of 1h 28m.
How far ahead should I book a flight from Seoul to London Heathrow Airport?
The best time to book flights from Seoul to London Heathrow Airport is 82 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
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 October 7, 2026.
See what other customers who have flown with Asiana Airlines and Lufthansa from Seoul to London Heathrow Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.5
Comfort
8.0
Food
8.0
Entertainment
7.6
Boarding
8.3
Overall
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Apr 2026
ICN - PEK
Crew
8.5
Comfort
8.0
Food
8.0
Entertainment
7.6
Boarding
8.3
Overall
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Apr 2026
ICN - PEK
Crew
8.5
Comfort
8.0
Food
8.0
Entertainment
7.6
Boarding
8.3
Overall
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Apr 2026
ICN - PEK
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.
Traveling to a place near London Heathrow Airport?
Book flights to London Heathrow Airport if you plan to visit one of these locationsIlford
Dorking
Gatwick
Hounslow
Wembley
Harrow
Southend-on-Sea
Basingstoke
Watford
Northampton
Dartford
Winchester
Croydon
Chipping Norton
Kingston upon Thames
Eastbourne
Slough
Stansted
Sutton
Luton
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Other flights to Heathrow
Explore flights to Heathrow departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 7, 2026.
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Check out other popular destinations found by fellow travelers in 2026
Top 2 airlines flying from Seoul to Heathrow
Discover the top 2 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 October 7, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$545 | Average$806 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$715 | Average$768 | FlexibilityNo cancel fee | On-time76% |