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Cheap Flights from Seoul (SELA) to London (LHR)

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Compare Seoul to London Heathrow flight deals

Find the cheapest month or even day of the year to fly to London Heathrow

Book the best London Heathrow fare with no extra fees

Flight deals from Seoul to London Heathrow

Looking for a cheap last-minute deal or the best return flight from Seoul to London Heathrow? Find the lowest prices on one-way and return tickets right here.
London.$798 per passenger.Departing Tue, 13 May, returning Tue, 27 May.Return flight with China Southern.Outbound indirect flight with China Southern, departs from Incheon International on Tue, 13 May, arriving in London Heathrow.Inbound indirect flight with China Southern, departs from London Heathrow on Tue, 27 May, arriving in Incheon International.Price includes taxes and charges.From $798, select.
London.$811 per passenger.Departing Wed, 14 May, returning Sat, 7 Jun.Return flight with Air China.Outbound indirect flight with Air China, departs from Incheon International on Wed, 14 May, arriving in London Heathrow.Inbound indirect flight with Air China, departs from London Heathrow on Sat, 7 Jun, arriving in Incheon International.Price includes taxes and charges.From $811, select.
London.$826 per passenger.Departing Tue, 17 Jun, returning Thu, 26 Jun.Return flight with Air China.Outbound indirect flight with Air China, departs from Incheon International on Tue, 17 Jun, arriving in London Heathrow.Inbound indirect flight with Air China, departs from London Heathrow on Thu, 26 Jun, arriving in Incheon International.Price includes taxes and charges.From $826, select.
London.$859 per passenger.Departing Wed, 25 Jun, returning Wed, 2 Jul.Return flight with China Eastern.Outbound indirect flight with China Eastern, departs from Incheon International on Wed, 25 Jun, arriving in London Heathrow.Inbound indirect flight with China Eastern, departs from London Heathrow on Wed, 2 Jul, arriving in Incheon International.Price includes taxes and charges.From $859, select.
London.$883 per passenger.Departing Wed, 11 Jun, returning Tue, 2 Dec.Return flight with China Eastern.Outbound indirect flight with China Eastern, departs from Incheon International on Wed, 11 Jun, arriving in London Heathrow.Inbound indirect flight with China Eastern, departs from London Heathrow on Tue, 2 Dec, arriving in Incheon International.Price includes taxes and charges.From $883, select.
London.$913 per passenger.Departing Tue, 1 Jul, returning Wed, 31 Dec.Return flight with Lufthansa.Outbound indirect flight with Lufthansa, departs from Incheon International on Tue, 1 Jul, arriving in London Heathrow.Inbound indirect flight with Lufthansa, departs from London Heathrow on Wed, 31 Dec, arriving in Incheon International.Price includes taxes and charges.From $913, select.
London.$928 per passenger.Departing Fri, 23 May, returning Tue, 19 Aug.Return flight with China Eastern.Outbound indirect flight with China Eastern, departs from Incheon International on Fri, 23 May, arriving in London Heathrow.Inbound indirect flight with China Eastern, departs from London Heathrow on Tue, 19 Aug, arriving in Incheon International.Price includes taxes and charges.From $928, select.
London.$942 per passenger.Departing Sun, 1 Jun, returning Sat, 15 Nov.Return flight with China Eastern.Outbound indirect flight with China Eastern, departs from Incheon International on Sun, 1 Jun, arriving in London Heathrow.Inbound indirect flight with China Eastern, departs from London Heathrow on Sat, 15 Nov, arriving in Incheon International.Price includes taxes and charges.From $942, select.

Find the cheapest month to fly from Seoul to London Heathrow

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Seoul to London Heathrow flights are currently cheapest in May.
May
from $798
Jun
from $826
Jul
from $1,048
Aug
from $1,098
Sep
from $1,020
Oct
from $1,009
Nov
from $996
Dec
from $998
Jan
from $996
Feb
from $997
Mar
from $997
Apr
from $1,085

Direct flights from Seoul to London Heathrow

Seoul to London Heathrow: Alternative routes

Compare routes from Seoul to London below. You may find an airport to fly into that's cheaper, faster, or easier than London Heathrow.

Seoul to London: Flight information

The things to know before you go.
Cheapest flight found$798
Cheapest month to flyMay
Average flight time13 hrs, 58 mins
Most popular airlineVirgin Atlantic
Average flights per week23

Finding cheap flights from Seoul to London Heathrow: Frequently asked questions

The best price we found for a return flight from Seoul to London Heathrow is $798. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
13 hours and 58 minutes is the average flight time from Seoul to London Heathrow.
Virgin Atlantic, Korean Air and Asiana Airlines fly direct from Seoul to London Heathrow.
As of May 2025, there are 23 flights per week flying from Seoul to London Heathrow.
The cheapest month to fly from Seoul to London Heathrow is usually May 2025.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Seoul to London Heathrow Airport on Tuesday, 13 May 2025.
Yes – the average flight time is 13 hours and 58 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to London Heathrow but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to London is around 40 days in advance, so don’t leave your flight to the last minute.

Flying from Seoul to London Heathrow Airport (LHR): what you need to know

  • There are a couple of main airports to choose from in Seoul. Check out your options departing from Incheon International Airport (ICN) or Gimpo International Airport (GMP) when organising your flight from Seoul to London Heathrow Airport (LHR).

  • Approximately 13 hours 25 minutes is how long you can expect to be in the air on a direct flight from Seoul to London Heathrow Airport.

  • London Heathrow Airport is located in London. The city operates in the UTC+0 timezone and is 9 hours behind Seoul.

  • Incheon International Airport (ICN) to London Heathrow Airport (LHR) is the most popular route. There are 40 direct weekly flights to pick from. If you prefer a later start to the day, hop on the last flight with Asiana Airlines at 14:30. Go for the first ICN to LHR departure operated by Korean Air at 10:50 if you want to get going earlier.

  • Arrive at the airport on time so you don't miss your flight from Seoul to LHR. Be there at least two hours ahead for international flights and an hour early for domestic departures to skip the mad dash to your gate.

  • Popular months like July or other peak periods mean longer lines and potential delays. Get a head start by getting to the airport even earlier. Plan for at least four hours ahead of an international flight and two hours before a domestic departure.

Gimpo International Airport (GMP)

  • Gimpo International Airport (GMP) operates direct flights from Seoul to London Heathrow Airport (LHR).

  • Catch your direct flight from Seoul to LHR with Korean Air. This is one of the top airlines that operates this route out of GMP.

  • Break up your flight from Seoul to London Heathrow Airport with a stop so you can freshen up or cross another place off your list. Some popular stopovers between Gimpo International Airport and LHR are:

    • Harry Reid Airport (formerly McCarran Airport) Airport (LAS)

    • Beijing Capital International Airport (PEK)

    • Frankfurt Airport (FRA)

  • From central Seoul, GMP is about 16 kilometres away. When working out the best way to get there, check whether public transport is an option or if it's better to drive.

  • Want to treat yourself to an extra night away before catching your flight from Seoul to LHR? Unwind in a hotel near Gimpo International Airport before your holiday officially starts. Consider one of these stays:

About London Heathrow Airport (LHR)

Getting from London Heathrow Airport (LHR) to central London

  • London Heathrow Airport is approximately 31 kilometres from central London. With a car rental or if you're catching a cab, the drive is about 57 minutes.

  • Getting to the centre on public transport typically takes 1 hour and 1 minute.

How to find the cheapest flights from Seoul to London Heathrow Airport (LHR)

  • $304 is the lowest price we've seen for a one-way ticket from Seoul to London Heathrow Airport. Return flights start from $798. Prices may vary depending on availability at the time of booking.

  • You're more likely to find flight tickets from Seoul to LHR if you book 8 months ahead of takeoff. We crunched the flight price data and found that's when fares on this route are typically at their lowest.

  • May is the cheapest month for tickets from Seoul to London Heathrow Airport. If you'd like to travel during a different time of year, use the 'Whole month' search feature to see the lowest prices for every month.

  • Snapping up a cheap ticket from Seoul to LHR is a piece of cake with Price Alerts. All you need to do is set up one of these automatic alerts and we'll notify you as soon as the price has dropped.

  • Make the most of the filters to find your ideal journey. To see the 'Best,' 'Fastest' or 'Cheapest' flights from Seoul to London Heathrow Airport, use the 'Sort by' function. You can also filter results by departure and arrival times, airline, and number of stops.

The best time to fly from Seoul to London Heathrow Airport (LHR)

  • February is the quietest time of year to travel to London. Alternatively, join the crowds and go in July. This is the most popular month for flights from Seoul to London Heathrow Airport, but the best time to go is your call.

  • Think about the type of weather that'll work with your plans for London. The warmest month is July. Lock in your flights from Seoul to LHR during then and you can expect temperatures of between 11ºC and 26ºC.

  • January sees average temperatures of between 0ºC and 9ºC. Look for cheap flights from Seoul to London Heathrow Airport around that time if you want to travel when it's cooler.

More about London

Complete your London trip with a car rental

  • Close all those tabs and let us do the hard work for you. We can also help you find deals on car rentals in London once you've booked your hotel and cheap flight from Seoul to London Heathrow Airport. Instantly compare prices all in one place and drive off with the perfect ride for less.

Plan the rest of your trip from Seoul to London

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.