£166 Find Cheap Flights from South Korea to London Heathrow Airport – Compare and Save

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Cheap Flights from South Korea to Heathrow

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from South Korea to Heathrow

Fri, 27 Nov - Thu, 3 Dec
China Eastern Logo
17:50 - 06:25PUS  Busan Gimhae-LHR London Heathrow
21h 35m1 stop Shanghai Pu Dong
China Eastern Logo
12:30 - 16:50LHR  London Heathrow-PUS Busan Gimhae
19h 20m1 stop Shanghai Pu Dong
£444China Eastern
Fri, 27 Nov - Thu, 3 Dec
China Eastern Logo
17:50 - 06:25PUS  Busan Gimhae-LHR London Heathrow
21h 35m1 stop Shanghai Pu Dong
China Eastern Logo
12:30 - 16:50LHR  London Heathrow-PUS Busan Gimhae
19h 20m1 stop Shanghai Pu Dong
£451China Eastern
Fri, 6 Nov - Tue, 10 Nov
Air China Logo
16:30 - 17:50ICN  Incheon Intl-LHR London Heathrow
34h 20m1 stop Beijing Capital
Air China Logo
21:50 - 12:55LHR  London Heathrow-ICN Incheon Intl
30h 05m1 stop Chengdu Tianfu Intl
£508Air China
Fri, 6 Nov - Sat, 14 Nov
Air China Logo
16:30 - 17:50ICN  Incheon Intl-LHR London Heathrow
34h 20m1 stop Beijing Capital
Air China Logo
21:30 - 12:55LHR  London Heathrow-ICN Incheon Intl
30h 25m1 stop Chengdu Tianfu Intl
£508Air China
Thu, 19 Nov - Thu, 26 Nov
Virgin Atlantic Logo
13:25 - 18:55ICN  Incheon Intl-LHR London Heathrow
14h 30mdirect
Virgin Atlantic Logo
14:30 - 11:40LHR  London Heathrow-ICN Incheon Intl
12h 10mdirect
£630Virgin Atlantic
Fri, 20 Nov - Thu, 26 Nov
Virgin Atlantic Logo
13:30 - 18:40ICN  Incheon Intl-LHR London Heathrow
14h 10mdirect
Virgin Atlantic Logo
14:30 - 11:40LHR  London Heathrow-ICN Incheon Intl
12h 10mdirect
£636Virgin Atlantic
Fri, 6 Nov - Wed, 11 Nov
Asiana Airlines Logo
09:40 - 15:35ICN  Incheon Intl-LHR London Heathrow
14h 55mdirect
Asiana Airlines Logo
17:40 - 15:10LHR  London Heathrow-ICN Incheon Intl
12h 30mdirect
£669Asiana Airlines
Fri, 6 Nov - Tue, 10 Nov
Asiana Airlines Logo
09:40 - 15:35ICN  Incheon Intl-LHR London Heathrow
14h 55mdirect
Asiana Airlines Logo
17:40 - 15:10LHR  London Heathrow-ICN Incheon Intl
12h 30mdirect
£669Asiana Airlines
Mon, 21 Dec - Mon, 22 Feb
Korean Air Logo
10:40 - 16:30ICN  Incheon Intl-LHR London Heathrow
14h 50mdirect
Korean Air Logo
18:50 - 16:25LHR  London Heathrow-ICN Incheon Intl
12h 35mdirect
£806Korean Air
Fri, 22 Jan - Tue, 26 Jan
Korean Air Logo
10:40 - 16:30ICN  Incheon Intl-LHR London Heathrow
14h 50mdirect
Korean Air Logo
18:50 - 16:25LHR  London Heathrow-ICN Incheon Intl
12h 35mdirect
£806Korean Air
Booking Insights

KAYAK's insights & trends for flights to Heathrow

Get data-powered insights and trends into flights to Heathrow to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest flight to London Heathrow Airport?

In the last 5 days, the cheapest flight deal to London Heathrow Airport was found on the route from Incheon, at £444 return. The most popular connection is from Seoul to London Heathrow Airport, while KAYAK users have found return deals for as low as £496 in the last 5 days.

What is the cheapest day to fly to London?

Based on KAYAK data, the cheapest day to fly to London is Monday where round-trip tickets can be as cheap as £599. On the other hand, the most expensive day to fly is Thursday, where round-trip prices are £764 on average.

What is the cheapest month to fly to London Heathrow Airport?

The cheapest month for flights to London Heathrow Airport is November, where tickets cost £591 on average for return flights. On the other hand, the most expensive months are August and September, where the average cost of tickets from South Korea is £791 and £768 respectively. For one-way flights, the best month to travel is December with an average price of £290.

What is the cheapest time of day to fly to London Heathrow Airport?

The cheapest time of day to fly to London Heathrow Airport is generally in the afternoon, when round-trip flights cost £698 on average. The most expensive time of day to fly to London Heathrow Airport is generally in the morning, which is peak travel time and where the average cost of a ticket is £706.

What is a good deal for flights to London Heathrow Airport?

If you’re looking for cheap airfare to London Heathrow Airport, 25% of our users found tickets to London Heathrow Airport for the following prices or less: From Incheon Intl Airport £764 return.

How far in advance should I book a flight to London Heathrow Airport?

To get a below average price, you should book around 4 weeks before departure, which saves you about 23% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 17 weeks before departure.

Good to know - Cheap tickets from South Korea to London Heathrow Airport

Low season

February

Cheapest flight

£166
Best time to beat the crowds but there is an average 1% increase in price.
Most popular time to fly and prices are also 1% lower on average.
Flight from Seoul Incheon Airport to London Heathrow Airport

FAQs - booking London Heathrow Airport flights

  • What is the cheapest flight to London Heathrow Airport?

    In the last 5 days, the cheapest flight deal to London Heathrow Airport was found on the route from Incheon, at £444 return. The most popular connection is from Seoul to London Heathrow Airport, while KAYAK users have found return deals for as low as £496 in the last 5 days.

  • How far is London Heathrow Airport from central London?

    The city centre of London is 14 miles from London.

  • How much is a flight to London?

    On average, a flight to London costs £622. The cheapest price found on KAYAK in the last 2 weeks cost £376 and departed from Incheon Intl Airport.

  • How does KAYAK find such low prices on flights to London Heathrow Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to London Heathrow Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to London Heathrow Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Heathrow Airport is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights to London Heathrow Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to London Heathrow Airport with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to London Heathrow Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London Heathrow Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to London Heathrow Airport

  • Looking for a cheap flight from London Heathrow Airport to South Korea? 25% of our users found flights on this route for £392 or less one-way and £764 or less round-trip.

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest London Heathrow Airport flight deals.

Reviews of the top 4 airlines flying from South Korea to Heathrow

 
Need help choosing which airline to fly with to Heathrow? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.4
Korean AirOverall score based on 1219 reviews
8.7Crew
8.5Boarding
8.3Comfort
8.2Entertainment
8.1Food
Airline reviews

Very long flight time. Still better than a connection flight. Staff is very good at service. Vegetarian food is not very good.

8.0 ExcellentGary, Apr 2026
Read more Korean Air reviews

Very long flight time. Still better than a connection flight. Staff is very good at service. Vegetarian food is not very good.

The business class is excellent. I loved the food, and the crew was very attentive and professional. From boarding to arrival, everything felt smooth and well-organised.

Lousy entertainment system. Crews are excellent. Meal is just mediocre.

Aircraft is pretty old. Seat is not comfortable. Meal quality is disappointing. Entertainment system is not impressive at all.

Great service and comfort level. You can have more of vegetarian food options.

It’s great, long flight and arrive safe at destination

Everything was excellent as I expected. They also had a very caring crew. I had a headache and asked a Tylenol. The crew members kept checking with me how I was doing.

I can't believe they put my wife and I in the two middle seats! It is a very long flight and we had single flyers on either side of us blocking the way to the bathroom! There's no reason to not give one of us the isle seat so we could have managed bathroom needs and snacks with convenience. So I think very poorly of Korean air to put us both in the middle, I've never had that happen before and will probably avoid this airline in the future because of this. We tried to have them change it but they didn't so you pretty much lost a customer because of it.

There could have been better spacing of the passengers, it was crowded in some parts of the plane then other while rows were empty

Plane took off on time and I had the whole row to myself!

Just good - short flight. Not much happens. Left on time and arrived on time.

Smooth sailing trip, pilots are good. Less amount of food offered but the quality is okey.

Kayak uses scammer sites to steal money from their victims.

When one asks for water because they are dehydrated, bring more then a sip or two in a small cup. Bring them a whole bottle.

Food could be better it was okay. Entertainment seems dated it was something but in this day and age could be a lot better.

I am thankful that I was able to fly using Asiana

The customer service was excellent. They noticed that our connecting flight was scheduled too closely for us to complete customs, so they changed the flight. Our initial flight was delayed, and they were able to get us on another flight, all without charging us any additional fees. I would fly them again anytime!

Very clean ,flight attendants very professional,nice , Boarding was very easy

The aircraft was massive (A-380) and became crowded with 400+ passengers on board.

The crew was amazing and really nice. The OS on the entertainment system could use an update, though. It felt old and outdated but had anything you'd need to keep busy. I usually never use it anyways, but that did stand out.

Food was okay. Seats were a bit cramped. In flight entertainment headphone socket didn't work on my seat. Wifi was great, so I was able to stream on my iPad

Selection of movies didn't include recent box office hits. Food was average not great. English sparkling wine is not drinkable. Otherwise, everything was great.

Food has been disappointing in both legs of flight to india

Great staff great experience, made a 2 hour delay very bearable

I was my pleasure to fly virgin on my birthday for my first solo trip ever 🫶🏼

Overall, flight was excellent but check in was very slow for Premium Economy. Economy queue was shorter but we weren't allowed to use it.

Great crew - old style upper class seats on the older fleet now feels dated

Following a paid seat upgrade for enhanced comfort, I encountered an unacceptable odor in my assigned area. It took three hours for the crew to relocate me, and the replacement seat was unacceptably close to the lavatory, offering no improvement.

Good overall. Cannot fault the airlines. I have had better entertainment systems before ie ice in Emirates but it was not too bad. Food was decent and staff were friendly.

Miami airport needs more thorough signage. It was a long walk from my transport point to the check in desk,

It we as a pleasant flight. Good helpful and happy cabin crew. Food was okay, not to write home about. Drinks good. Entertainment okay.. Seat space good , comfort acceptable

Very friendly and attentive flight attendants, good food service. Seat was comfortable. However, the in flight electronics were poor. The screen froze repeatedly; the controller died; the headphones are a hit or miss; the wifi wasn't usable. Very scarce communication before the flight (no email reminder). Almost impossible to understand in-flight communications (audio was very poor).

The meals were not the greatest and lacking of appetite but everything else was spot on

Your staff was exceptional. Could teach the other airlines-rules on etiquette, and service. Excellent landings on flights, carried out by your pilots. Only complaint is long delay on return flight in Beijing, onto Vancouver.

cannot get seat information for LAX to IAH when check in in XI,AN

Food and service are good. Bathroom was lack of lotions and cleaning. That should be improved.

Chinese flight attendants didn't speak english well. They didn't care enough to remember that I (east asian who isn't Chinese) wasn't Chinese and spoke English. Announcement in english on board was poor and I find it very difficult to understand what was announced. Also, a cabin bag allows only 5kg!

Everything was not satisfactory - the flight was delayed, staffs were ok but they didn't speak English well. I am from east Asia (not Chinese) and they didn't care enough to remember that I wasn't Chinese but persistently spoke chinese to me. The flight announcement in english wasn't clear to understand.

I wish I had been able to choose a vegetarian meal. Crew friendly and helpful. Seat was ok. All quite efficient and pleasant. Would recommend for inner China travel for sure.

It was simply bad and on top of that my luggage hasn't been delivered until now. They can't even localize it which is just unacceptable when they are supposed to scan the bar code they put when we check in

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