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Cheap flights from London Heathrow Airport to Busan from £338

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 12/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — PUS
25 Mar — 1 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to Busan

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Busan
Explore the most affordable flight options available from Heathrow to Busan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 23 February 2026.

Thu 12/317:40
LHR
-
PUS
1 stop33h 05m
Air China
Mon 16/312:45
PUS
-
LHR
1 stop36h 10m
Air China
Deal found 22/2£412
Tue 2/622:40
LHR
-
PUS
1 stop29h 05m
Air China
Sat 6/612:45
PUS
-
LHR
1 stop15h 40m
Air China
Deal found 22/2£448
Fri 29/522:40
LHR
-
PUS
1 stop29h 05m
Air China
Mon 8/612:45
PUS
-
LHR
1 stop15h 40m
Air China
Deal found 21/2£452
Sun 12/420:25
LHR
-
PUS
1 stop31h 20m
Air China
Wed 29/412:45
PUS
-
LHR
1 stop15h 40m
Air China
Deal found 23/2£454
Tue 10/320:25
LHR
-
PUS
1 stop30h 20m
Air China
Fri 27/312:45
PUS
-
LHR
1 stop36h 10m
Air China
Deal found 21/2£455
Thu 28/522:40
LHR
-
PUS
1 stop29h 05m
Air China
Thu 11/612:45
PUS
-
LHR
1 stop15h 40m
Air China
Deal found 21/2£467
Sat 30/522:40
LHR
-
PUS
1 stop29h 05m
Air China
Sat 6/612:45
PUS
-
LHR
1 stop15h 40m
Air China
Deal found 22/2£491
Thu 12/320:25
LHR
-
PUS
1 stop30h 20m
Multiple Airlines
Sat 21/317:50
PUS
-
LHR
1 stop32h 40m
Multiple Airlines
Deal found 23/2£527

Find flight deals from Heathrow to Busan

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Busan (PUS). 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 23 February 2026.

Round-trip from

£412

One-way from

£338

Popular in

August

Cheapest in

April

Average price

£922
Air China
  • Air China
  • 12/3-16/3
  • 2 total stops
  • 69h 15m total
  • London to Busan
Search Deals
12/5
  • 12/5
  • 2 total stops
  • 51h 20m total
  • London to Busan
Search Deals
Highest demand for flights based on searches. 21% potential increase in price (£165 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£18 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow to Busan 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 23 February 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Busan that are best for you.

Fly from

Heathrow

Fly to

Busan

Route

Depart

Return

Price

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Sat 2/5

22:40-11:45

1 stop29h 05m

Busan Gimhae

Sat 16/5

12:45-20:25

1 stop15h 40m

£454

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Sat 30/5

22:40-11:45

1 stop29h 05m

Busan Gimhae

Sat 6/6

12:45-20:25

1 stop15h 40m

£491

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Tue 10/3

06:20-11:35

2 stops20h 15m

Busan Gimhae

Fri 27/3

12:35-20:50

2 stops41h 15m

£665

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Thu 28/5

06:15-11:35

2 stops21h 20m

Busan Gimhae

Thu 11/6

12:35-07:40

2 stops51h 05m

£697

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Thu 12/3

06:20-11:35

2 stops44h 15m

Busan Gimhae

Mon 16/3

12:35-17:30

1 stop37h 55m

£708

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Sun 17/5

19:50-07:05

1 stop27h 15m

Busan Gimhae

Wed 9/9

10:00-16:55

1 stop38h 55m

£728

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Wed 20/5

14:45-11:35

2 stops36h 50m

Busan Gimhae

Wed 3/6

12:35-10:30

2 stops53h 55m

£728

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Wed 20/5

19:35-19:35

1 stop16h 00m

Busan Gimhae

Wed 3/6

08:45-17:20

1 stop16h 35m

£735

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Sat 6/6

22:40-11:45

1 stop29h 05m

£359

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Thu 4/6

22:40-11:45

1 stop29h 05m

£359

Flights are sorted by cheapest return flights first.

Deals found on 19/2

Showing 1-10 of 18 results
1
2

Best time to book a flight from Heathrow to Busan

Have a flexible travel schedule? Discover the best time to fly to Busan from Heathrow 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 London Heathrow Airport to Busan

What’s the top stopover airport for flights from London Heathrow Airport to Busan?

Share of one-stop return flights from London Heathrow Airport to Busan chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Hong Kong (HKG) – chosen by Cheapflights users on 36% of one-stop itineraries from London Heathrow Airport to Busan on Cheapflights.

What’s the cheapest stopover airport for flights from London Heathrow Airport to Busan?

Average return fare for one-stop flights from London Heathrow Airport to Busan, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Beijing (PEK) is the most affordable one-stop option, with an average return flight price of £602.

What’s the fastest stopover option from London Heathrow Airport to Busan?

Shortest average travel time for one-stop one-way flights from London Heathrow Airport to Busan, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Incheon (ICN) have the shortest average one-way travel time for one-stop routes: 15h 19m.

Which airport typically offers the quickest stopover for flights from London Heathrow Airport to Busan?

Average stopover duration for one-stop one-way flights from London Heathrow Airport to Busan, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Incheon (ICN) offer the fastest connection on this route, with an average stopover time of 2h 14m.

Reviews of airlines servicing Busan

Get insights into the airlines that provide service to Busan. 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 Busan. Reviews last updated 23 February 2026.
Get a feel of what it's like to fly with Korean Air and Air China from London Heathrow Airport to Busan by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very Good
1,195 reviews
Check prices

Boarding

8.5

Comfort

8.3

Food

8.1

Entertainment

8.2

Crew

8.7

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very Good
1,195 reviews
Korean Air
8.4
Very Good
1,195 reviews
Check prices

Boarding

8.5

Comfort

8.3

Food

8.1

Entertainment

8.2

Crew

8.7

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Air China
7.2
Good
139 reviews
Korean Air
8.4
Very Good
1,195 reviews
Check prices

Boarding

8.5

Comfort

8.3

Food

8.1

Entertainment

8.2

Crew

8.7

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Busan. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Busan from London Heathrow?

    For a flight from London Heathrow to Busan, you will be flying into Gimhae. Busan Gimhae (PUS) is just 7.2 mi from the center of the city. Gimhae is the only Busan airport and it handles 0 inbound flights from London Heathrow per day. 2 airlines have flights to Busan Gimhae from London Heathrow on a regular basis.

  • How long is the flight from London Heathrow Airport to Busan?

    There are many flights that can get you from London Heathrow Airport to Busan in 20h 15m. Fly via Air China or China Eastern to get the fastest option. Airlines will cover a distance of 5709 mi. This flight may include one or multiple stops.

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

    Air China, at £438, was found to be the cheapest airline from London Heathrow Airport to Busan. An alternate airline flying to your destination would be Korean Air. These flights start at 46% lower than the current average price 3 months from now.

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

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

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

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

  • Can I find deals for business class flights from Heathrow to Busan?

    Yes. Cheapflights offers flight deals from Heathrow to Busan by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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 2 airlines flying from Heathrow to Busan

Discover the top 2 airlines that operate flights from Heathrow to Busan. 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 23 February 2026.
AirlineCheapestAverageFlexibilityOn-time
Air ChinaCheapest£438Average£681FlexibilityNo cancel feeOn-time67%
Search Air China flights
Korean AirCheapest£711Average£930FlexibilityNo 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 Heathrow to Busan?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Heathrow to Busan. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Busan?

Cheapflights helps you find that perfect flight to Busan from Heathrow by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Heathrow to Busan with no change fees?

Yes! Cheapflights helps users easily find flights from Heathrow to Busan with no change fees.

Can Cheapflights notify me if prices for flights from Heathrow to Busan become cheaper?

Yes, Cheapflights offers price alerts on Heathrow to Busan flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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