Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Seoul to London Heathrow Airport from £208

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 23/7. Fares are subject to change and may not be available on all flights or dates of travel.
SEL — LHR
13 Jul — 20 Jul1
1 adult

Cheapflights Tip: The best prices from Seoul to London Heathrow are usually found in March or December, booked 83 days in advance, depart on a Monday or Wednesday and return on a Wednesday

Cheap 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 8 July 2025.

Round-trip from

£483

One-way from

£208

Popular in

May

Cheapest in

March

Average price

£748

Good round-trip deal

£860 or less

Good one-way deal

£494 or less
China Southern
  • China Southern
  • 15/9-20/9
  • 2 total stops
  • 53h 25m total
  • Seoul to London
Search Deals
China Eastern
  • China Eastern
  • 23/7
  • 1 total stop
  • 38h 40m total
  • Seoul to London
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (£30 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£10 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2025
Search Deals
Price to beat on a round-trip flight from Seoul (SEL) to London Heathrow.
Search Deals
Price to beat on a one-way flight from Seoul (SEL) to London Heathrow.
Search Deals

Find flight deals from Seoul to Heathrow

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 8 July 2025.

Mon 15/901:35ICN - LHR
1 stop21h 40mMultiple Airlines
Sat 20/922:10LHR - ICN
1 stop31h 45mMultiple Airlines
Deal found 6/7£483
Thu 27/1123:00ICN - LHR
1 stop30h 40mFinnair
Wed 3/1216:15LHR - ICN
1 stop35h 10mFinnair
Deal found 6/7£486
Fri 21/1113:45GMP - LHR
1 stop37h 10mChina Southern
Thu 27/1121:30LHR - GMP
1 stop29h 55mChina Southern
Deal found 6/7£488
Mon 17/1116:15ICN - LHR
1 stop35h 00mChina Southern
Tue 25/1122:00LHR - ICN
1 stop30h 50mChina Southern
Deal found 6/7£491
Wed 17/1214:55ICN - LHR
1 stop37h 45mAir China
Tue 30/1221:35LHR - ICN
1 stop30h 20mAir China
Deal found 6/7£495
Wed 12/1120:50ICN - LHR
2 stops29h 40mChina Eastern
Sun 23/1121:00LHR - ICN
2 stops32h 40mChina Eastern
Deal found 6/7£503
Mon 1/1213:05ICN - LHR
1 stop18h 15mLufthansa
Sun 7/1208:45LHR - ICN
1 stop17h 30mLufthansa
Deal found 7/7£504
Fri 12/1214:25GMP - LHR
1 stop36h 25mAir China
Fri 26/1217:40LHR - GMP
1 stop34h 25mAir China
Deal found 6/7£517
Thu 17/714:25GMP - LHR
1 stop14h 05mMultiple Airlines
Thu 4/921:00LHR - GMP
1 stop31h 25mMultiple Airlines
Deal found 7/7£527

Cheapflights Fare Finder

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 858,174 searches. Data last updated 8 July 2025.
Use the filters below to find and compare flights from Seoul to London Heathrow Airport that are best for you.

Fly from

Seoul

Fly to

Heathrow

Route

Depart

Return

Price

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Mon 15/9

01:35-15:15

1 stop21h 40m

London Heathrow

Sat 20/9

22:10-13:55

1 stop31h 45m

£483

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Thu 27/11

23:00-20:40

1 stop30h 40m

London Heathrow

Wed 3/12

16:15-12:25

1 stop35h 10m

£486

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Mon 8/12

12:15-21:25

1 stop18h 10m

London Heathrow

Thu 11/12

09:00-10:10

1 stop16h 10m

£488

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Fri 21/11

13:45-17:55

1 stop37h 10m

London Heathrow

Thu 27/11

21:30-12:25

1 stop29h 55m

£488

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Mon 10/11

16:15-18:15

1 stop35h 00m

London Heathrow

Tue 18/11

22:00-20:35

1 stop37h 35m

£490

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Mon 13/10

14:55-20:15

1 stop37h 20m

London Heathrow

Sat 25/10

22:00-12:55

1 stop30h 55m

£502

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Wed 12/11

20:50-17:30

2 stops29h 40m

London Heathrow

Sun 23/11

21:00-14:40

2 stops32h 40m

£503

IncheonLondon

ICN - LHR

ICNLHR

Incheon Intl

Wed 19/11

13:05-20:50

1 stop16h 45m

London Heathrow

Sun 30/11

08:45-11:15

1 stop17h 30m

£507

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Fri 12/12

14:25-17:50

1 stop36h 25m

London Heathrow

Fri 26/12

17:40-13:05

1 stop34h 25m

£517

SeoulLondon

GMP - LHR

GMPLHR

Seoul Gimpo Intl

Wed 23/7

12:00-18:40

1 stop38h 40m

£208

Flights are sorted by cheapest return flights first.

Deals found on 7/7

Showing 1-10 of 22 results
1
2
3

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.
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

How far ahead should I book a flight from Seoul to London Heathrow Airport?

Use this chart to determine the optimal time to book a return flight from Seoul to Heathrow. Price data was last updated on 27 June 2025.

Booking 83 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.

What is the cheapest month to book a flight from Seoul to London Heathrow Airport?

Currently, January is the cheapest month in which you can book a flight from Seoul to London Heathrow Airport (average of £112). Flying from Seoul to London Heathrow Airport in August is currently the most expensive (average of £164). 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 8 July 2025.

A simple way to save on the total cost of your ticket is to fly from Seoul to London Heathrow Airport in the evening. If you’re flexible enough to do this you can expect to save up to 37% on your trip compared to booking a flight at midday.

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 8 July 2025.

The most flights from SEL to LHR are scheduled on a Monday (3 on average). You will have fewer flight options on Monday, 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?

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 8 July 2025.
Read reviews from past customers who have flown with LOT, China Southern, andFinnair 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.
LOT
7.6
Good
1,093 reviews
Check prices

Boarding

7.6

Crew

8.2

Overall

7.6

Comfort

7.5

Food

7.2

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Hinesh,May 2025

LHR - WAW

Would not recommend this airline flight was delayed baggage was lost bad communication, our bag landed at the destination airport at 12 midday but did not arrive at the hotel till midnight no urgency at all this totally ruined the first 2 days of our trip worst airline I have used.
LOT
7.6
Good
1,093 reviews
LOT
7.6
Good
1,093 reviews
Check prices

Boarding

7.6

Crew

8.2

Overall

7.6

Comfort

7.5

Food

7.2

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Hinesh,May 2025

LHR - WAW

Would not recommend this airline flight was delayed baggage was lost bad communication, our bag landed at the destination airport at 12 midday but did not arrive at the hotel till midnight no urgency at all this totally ruined the first 2 days of our trip worst airline I have used.
China Southern
7.6
Good
101 reviews
LOT
7.6
Good
1,093 reviews
Check prices

Boarding

7.6

Crew

8.2

Overall

7.6

Comfort

7.5

Food

7.2

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Hinesh,May 2025

LHR - WAW

Would not recommend this airline flight was delayed baggage was lost bad communication, our bag landed at the destination airport at 12 midday but did not arrive at the hotel till midnight no urgency at all this totally ruined the first 2 days of our trip worst airline I have used.
Finnair
7.6
Good
1,311 reviews
LOT
7.6
Good
1,093 reviews
Check prices

Boarding

7.6

Crew

8.2

Overall

7.6

Comfort

7.5

Food

7.2

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Hinesh,May 2025

LHR - WAW

Would not recommend this airline flight was delayed baggage was lost bad communication, our bag landed at the destination airport at 12 midday but did not arrive at the hotel till midnight no urgency at all this totally ruined the first 2 days of our trip worst airline I have used.
Air France
7.5
Good
1,467 reviews
LOT
7.6
Good
1,093 reviews
Check prices

Boarding

7.6

Crew

8.2

Overall

7.6

Comfort

7.5

Food

7.2

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Hinesh,May 2025

LHR - WAW

Would not recommend this airline flight was delayed baggage was lost bad communication, our bag landed at the destination airport at 12 midday but did not arrive at the hotel till midnight no urgency at all this totally ruined the first 2 days of our trip worst airline I have used.
Vietnam Airlines
7.5
Good
195 reviews
LOT
7.6
Good
1,093 reviews
Check prices

Boarding

7.6

Crew

8.2

Overall

7.6

Comfort

7.5

Food

7.2

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Hinesh,May 2025

LHR - WAW

Would not recommend this airline flight was delayed baggage was lost bad communication, our bag landed at the destination airport at 12 midday but did not arrive at the hotel till midnight no urgency at all this totally ruined the first 2 days of our trip worst airline I have used.

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.

  • What are the cheapest airlines flying from Seoul to London Heathrow Airport round-trip?

    Finnair, at £486, was found to be the cheapest airline from Seoul to London Heathrow Airport.Alternate airlines flying return to your destination include Air France and China Southern. These flights start at 27% 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 £208. However, be on the lookout for offers from Vietnam Airlines 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: Korean Air (73%), Virgin Atlantic (69%), Asiana Airlines (41%).

  • What are the cheapest flights from Seoul to London Heathrow Airport?

    Looking at all options, your cheapest flight can be booked for £462. While the most popular route (Incheon Intl - London Heathrow) can be booked for £466 on average our data indicates £1,285 when flying from Seoul to London Heathrow Airport.

  • Can I find deals for flights from Seoul to Heathrow that include hotel bookings?

    Yes. In addition to deals on Seoul to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Seoul to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seoul to Heathrow.

  • 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, January is the cheapest month in which you can book a flight from Seoul to London Heathrow Airport (average of £112). Flying from Seoul to London Heathrow Airport in August is currently the most expensive (average of £164). 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.

See more FAQs

Travelling to a place near Seoul?

Book flights to Seoul if you plan to visit one of these locations
Hounslow
Croydon
Milton Keynes
Deal
Northampton
Gatwick
Slough
Luton
Wembley
Crawley
Eastbourne
Ilford
Hayes
Ipswich
Folkestone
Southend-on-Sea
Watford
Winchester
Swindon
Maidstone

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 4 airlines flying from Seoul to Heathrow

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 858,174 searches. Data last updated 8 July 2025.
AirlineCheapestAverageFlexibilityOn-time
China EasternCheapest£349Average£521FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
FinnairCheapest£552Average£659FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Asiana AirlinesCheapest£638Average£736FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
Korean AirCheapest£662Average£836FlexibilityNo cancel feeOn-time81%
Search Korean Air flights

Fly with Cheapflights

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2025 Cheapflights