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Cheap Flights from London to Seoul

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Compare London to Incheon International flight deals

Find the cheapest month or even day of the year to fly to Incheon International

Book the best Incheon International fare with no extra fees

Flight deals from London to Incheon International

Looking for a cheap last-minute deal or the best return flight from London to Incheon International? Find the lowest prices on one-way and return tickets right here.
Seoul.$726 per passenger.Departing Tue, 18 Mar, returning Mon, 14 Apr.Return flight with China Southern.Outbound indirect flight with China Southern, departs from London Gatwick on Tue, 18 Mar, arriving in Incheon International.Inbound indirect flight with China Southern, departs from Incheon International on Mon, 14 Apr, arriving in London Gatwick.Price includes taxes and charges.From $726, select.
Seoul.$726 per passenger.Departing Tue, 18 Mar, returning Mon, 31 Mar.Return flight with China Southern.Outbound indirect flight with China Southern, departs from London Gatwick on Tue, 18 Mar, arriving in Incheon International.Inbound indirect flight with China Southern, departs from Incheon International on Mon, 31 Mar, arriving in London Gatwick.Price includes taxes and charges.From $726, select.
Seoul.$794 per passenger.Departing Tue, 3 Jun, returning Tue, 10 Jun.Return flight with China Southern.Outbound indirect flight with China Southern, departs from London Heathrow on Tue, 3 Jun, arriving in Incheon International.Inbound indirect flight with China Southern, departs from Incheon International on Tue, 10 Jun, arriving in London Heathrow.Price includes taxes and charges.From $794, select.
Seoul.$795 per passenger.Departing Mon, 19 May, returning Tue, 3 Jun.Return flight with China Southern.Outbound indirect flight with China Southern, departs from London Heathrow on Mon, 19 May, arriving in Incheon International.Inbound indirect flight with China Southern, departs from Incheon International on Tue, 3 Jun, arriving in London Heathrow.Price includes taxes and charges.From $795, select.
Seoul.$795 per passenger.Departing Tue, 22 Apr, returning Fri, 23 May.Return flight with China Southern.Outbound indirect flight with China Southern, departs from London Heathrow on Tue, 22 Apr, arriving in Incheon International.Inbound indirect flight with China Southern, departs from Incheon International on Fri, 23 May, arriving in London Gatwick.Price includes taxes and charges.From $795, select.
Seoul.$795 per passenger.Departing Sun, 11 May, returning Mon, 26 May.Return flight with China Southern.Outbound indirect flight with China Southern, departs from London Heathrow on Sun, 11 May, arriving in Incheon International.Inbound indirect flight with China Southern, departs from Incheon International on Mon, 26 May, arriving in London Gatwick.Price includes taxes and charges.From $795, select.
Seoul.$797 per passenger.Departing Tue, 22 Apr, returning Wed, 4 Jun.Return flight with China Southern.Outbound indirect flight with China Southern, departs from London Heathrow on Tue, 22 Apr, arriving in Incheon International.Inbound indirect flight with China Southern, departs from Incheon International on Wed, 4 Jun, arriving in London Heathrow.Price includes taxes and charges.From $797, select.
Seoul.$851 per passenger.Departing Tue, 15 Apr, returning Mon, 6 Oct.Return flight with China Eastern.Outbound indirect flight with China Eastern, departs from London Gatwick on Tue, 15 Apr, arriving in Incheon International.Inbound indirect flight with China Eastern, departs from Incheon International on Mon, 6 Oct, arriving in London Gatwick.Price includes taxes and charges.From $851, select.

Find the cheapest month to fly from London to Incheon International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like London to Incheon International flights are currently cheapest in March.
Mar
from $726
Apr
from $980
May
from $795
Jun
from $794
Jul
from $1,225
Aug
from $1,466
Sep
from $1,036
Oct
from $1,049
Nov
from $980
Dec
from $980
Jan
from $973
Feb
from $980

Direct flights from London to Incheon International

London to Incheon International: Alternative routes

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

London to Seoul: Flight information

The things to know before you go.
Cheapest flight found$726
Cheapest month to flyMarch
Average flight time12 hrs, 25 mins
Most popular airlineAsiana Airlines
Average flights per week21

Finding cheap flights from London to Incheon International: Frequently asked questions

The best price we found for a return flight from London to Incheon International is $726. 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.
12 hours and 25 minutes is the average flight time from London to Incheon International.
Asiana Airlines, Virgin Atlantic and Korean Air fly direct from London to Incheon International.
As of March 2025, there are 21 flights per week flying from London to Incheon International.
The cheapest month to fly from London to Incheon International is usually March 2025.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from London to Incheon International Airport on Tuesday, 18 March 2025.
Yes – the average flight time is 12 hours and 25 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 Incheon International 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 Seoul is around 40 days in advance, so don’t leave your flight to the last minute.

Travelling from London to Incheon International Airport (ICN): what you need to know

  • London has plenty of airports where you can begin your trip. Check out your departure options from London Heathrow Airport (LHR) and London Gatwick Airport (LGW) when planning your flight from London to Incheon International Airport (ICN). Stansted Airport (STN), London Luton Airport (LTN) and London City Airport (LCY) are the city's other main bases.

  • Expect to be travelling for 12 hours 6 minutes. On average, that's the time it takes for a direct flight from London to Incheon International Airport.

  • Incheon International Airport is located in Seoul. The city operates in the UTC+9 timezone and is 9 hours ahead of London.

  • The most popular route is from London Heathrow Airport (LHR) to Incheon International Airport (ICN), with 18 direct weekly services. If you'd like to head off as soon as possible, the earliest flight from LHR to ICN is the 18:50 Korean Air option. If you prefer to travel later, the final departure is at 20:40 with Asiana Airlines.

  • For a stress-free journey, turn up at the airport two hours ahead of international flights and one hour before domestic departures. This way, you'll have plenty of time to board your flight from London to ICN.

  • Be prepared for longer lines during popular months like July and other peak periods. Arriving up to four hours ahead of an international flight and two hours for a domestic departure is a smart move.

Airports in London

London Heathrow Airport (LHR)

  • You can book a direct flight from London to Incheon International Airport (ICN) out of London Heathrow Airport (LHR).

  • If you want to leave from LHR, you can take a direct flight from London to Incheon International Airport with Korean Air.

  • A stopover is the ideal opportunity to break up your journey — and maybe even visit a new city. When browsing flights from London to ICN leaving from London Heathrow Airport (LHR), deselect the 'Direct flights only' box to see where you can visit along the way. Here are some popular options to consider:

    • Frankfurt Airport (FRA)

    • Beijing Capital International Airport (PEK)

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

  • LHR is approximately 31 kilometres from central London. To work out how to get there, use Google Maps. This handy traveller tool will show you the fastest route and available public transport options.

  • Booked an early flight from London to Incheon International Airport? Avoid rushing to the terminal (and sneak in some extra precious sleep) by choosing one of these hotels close to London Heathrow Airport:

London Gatwick Airport (LGW)

  • Planning to leave from London Gatwick Airport (LGW)? You can reserve a direct flight from London to Incheon International Airport (ICN) out of this popular hub.

  • Board your direct flight from London to ICN with Asiana Airlines. This is one of the leading airlines operating this route out of LGW.

  • Visit friends or family or just take a moment to stretch your legs with a stopover. If you'd like to split up your flight from London to Incheon International Airport, browse these options when leaving from London Gatwick Airport:

    • Beijing Capital International Airport (PEK)

    • Vienna International Airport (VIE)

    • Franz Josef Strauss Airport (MUC)

  • On public transport, you can travel from central London to LGW in around 1 hour and 26 minutes. The airport is roughly 80 kilometres away, and getting there by car takes approximately 1 hour and 19 minutes.

  • Kick off your holiday early with an extra night away from home. Before catching your flight from London to ICN, kick back in one of these hotels near London Gatwick Airport:

About Incheon International Airport (ICN)

Getting from Incheon International Airport (ICN) to central Seoul

  • Incheon International Airport is about 48 kilometres from central Seoul. How long it'll take to get there in a car rental or cab will depend on the time of day. Do some research before your trip.

  • When travelling on public transport, expect a journey of around 1 hour and 44 minutes.

How to find the cheapest flights from London to Incheon International Airport (ICN)

  • $482 is the cheapest price we've seen for a one-way ticket from London to Incheon International Airport. Return flights start from $726. Prices may vary depending on availability at the time of booking.

  • Book 7 months before you want to fly. After looking at the numbers on our calendar, this is how far you'll want to book ahead to secure flight tickets from London to ICN.

  • You'll snag the best savings on your tickets from London to Incheon International Airport if you take off in April. Take it one step further and use the 'Whole month' tool to see the cheapest day to fly out.

  • Create a Price Alert and keep an eye on changes on this route through push notifications or email. You'll be the first to know when prices drop. Timing is key for finding flight tickets from London to ICN.

  • Personalise your trip by applying filters. Choose the number of stops, total duration, and departure and arrival times to find the ideal flight from London to Incheon International Airport. You can also sort the results to see the 'Fastest,' 'Cheapest' or 'Best' options first.

The best time to fly from London to Incheon International Airport (ICN)

  • It's time to choose your trip dates for your flight from London to Incheon International Airport. July is the busiest month to visit Seoul. If you like a more relaxed vibe, go in April.

  • Schedule your flight from London to ICN for August if you're eager to explore the city during its warmest month. Expect temperatures in Seoul to range from 19ºC to 32ºC.

  • Look for cheap flights from London to Incheon International Airport in January if you want to travel in cooler conditions. Temperatures are at their lowest around then, ranging between -12ºC and 4ºC on average.

More about Seoul

  • Start your Seoul trip off on the right foot by choosing the perfect place to stay. After booking your flight from London to Incheon International Airport, check out our selection of accommodation options including:

  • There are so many things to explore in this city it can be tricky to know where to begin. Gyeongbokgung Palace, Bukchon Hanok Village and N Seoul Tower are top attractions which should feature on any well-planned Seoul itinerary.

Complete your Seoul trip with a car rental

  • Close all those tabs and leave the hard work to us. We've also got amazing deals on car rentals in Seoul once you've booked your cheap flight from London to Incheon International Airport. Easily compare prices all in one place and drive off with the lowest rate in town.

Plan the rest of your trip from London to Seoul

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