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Cheap flights from London Heathrow Airport to Busan from £423

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 12/6. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — PUS
30 Jun — 7 Jul1
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 31 May 2026.

Mon 1/620:50
LHR
-
PUS
2 stops30h 45m
Multiple Airlines
Sun 28/612:35
PUS
-
LHR
1 stop38h 05m
Multiple Airlines
Deal found 27/5£591
Thu 18/615:00
LHR
-
PUS
2 stops31h 40m
Multiple Airlines
Sun 28/617:50
PUS
-
LHR
1 stop32h 50m
Multiple Airlines
Deal found 26/5£638
Wed 17/607:00
LHR
-
PUS
2 stops20h 35m
Multiple Airlines
Sun 28/617:50
PUS
-
LHR
1 stop32h 50m
Multiple Airlines
Deal found 26/5£641
Thu 5/1121:00
LHR
-
PUS
1 stop29h 35m
Multiple Airlines
Sat 21/1117:50
PUS
-
LHR
1 stop32h 40m
Multiple Airlines
Deal found 26/5£712
Mon 15/616:35
LHR
-
PUS
1 stop31h 10m
Multiple Airlines
Sun 21/612:35
PUS
-
LHR
1 stop38h 05m
Multiple Airlines
Deal found 27/5£753
Wed 17/616:35
LHR
-
PUS
1 stop19h 10m
Multiple Airlines
Fri 26/612:25
PUS
-
LHR
2 stops38h 15m
Multiple Airlines
Deal found 26/5£784
Tue 2/616:35
LHR
-
PUS
1 stop19h 10m
Asiana Airlines
Tue 9/620:20
PUS
-
LHR
1 stop26h 00m
Asiana Airlines
Deal found 28/5£790
Thu 18/616:35
LHR
-
PUS
1 stop19h 10m
Multiple Airlines
Fri 26/612:25
PUS
-
LHR
2 stops38h 15m
Multiple Airlines
Deal found 26/5£796

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 31 May 2026.

Round-trip from

£638

One-way from

£423

Popular in

August

Cheapest in

November

Average price

£611
China Eastern
  • China Eastern
  • 18/6-28/6
  • 3 total stops
  • 64h 30m total
  • London to Busan
Search Deals
12/6
  • 12/6
  • 2 total stops
  • 30h 45m total
  • London to Busan
Search Deals
Highest demand for flights based on searches. 31% potential increase in price (£328 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease (£59 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 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 31 May 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Busan that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Wed 10/6

06:15-11:35

2 stops21h 20m

Busan Gimhae

Wed 17/6

17:50-10:30

2 stops24h 40m

£833

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Thu 18/6

16:35-21:05

1 stop20h 30m

Busan Gimhae

Mon 29/6

18:20-14:20

1 stop28h 00m

£838

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Thu 27/8

09:30-16:35

2 stops23h 05m

Busan Gimhae

Thu 10/9

12:45-17:40

1 stop36h 55m

£860

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Fri 20/11

14:45-11:35

2 stops35h 50m

Busan Gimhae

Thu 3/12

12:35-18:20

2 stops38h 45m

£880
Fastest return journey

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Fri 20/11

11:00-13:20

1 stop17h 20m

Busan Gimhae

Thu 3/12

14:05-06:30

1 stop25h 25m

£882

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Fri 26/6

21:45-20:35

2 stops38h 50m

Busan Gimhae

Fri 3/7

18:30-18:05

2 stops31h 35m

£888

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Thu 18/6

14:45-11:35

2 stops36h 50m

Busan Gimhae

Wed 8/7

12:35-20:55

2 stops40h 20m

£896

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Fri 20/11

06:20-15:10

2 stops23h 50m

Busan Gimhae

Thu 3/12

07:00-21:25

2 stops23h 25m

£914

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Wed 1/7

21:45-18:20

2 stops36h 35m

Busan Gimhae

Wed 8/7

08:45-07:00

2 stops30h 15m

£966

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Wed 1/7

06:15-11:35

2 stops21h 20m

Busan Gimhae

Wed 8/7

12:35-10:30

2 stops29h 55m

£977

Flights are sorted by cheapest return flights first.

Deals found on 30/5

Showing 1-10 of 19 resultsSorted by cheapest first
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

How much does it cost for a return flight from London Heathrow Airport to Busan?

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 31 May 2026.
Get a feel of what it's like to fly with Korean Air 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
1,217 reviews
Check prices

Food

8.1

Entertainment

8.2

Crew

8.7

Boarding

8.5

Comfort

8.3

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
1,217 reviews
Korean Air
8.4
Very Good
1,217 reviews
Check prices

Food

8.1

Entertainment

8.2

Crew

8.7

Boarding

8.5

Comfort

8.3

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. 1 airline has 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 30m. Fly via Asiana Airlines 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 is the cheapest airline to fly from London Heathrow Airport to Busan round-trip?

    Korean Air, at £714, was found to be the cheapest airline from London Heathrow Airport to Busan.. This flight start at 25% 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

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Top airline flying from Heathrow to Busan

Discover the top airline 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 31 May 2026.
AirlineCheapestAverageFlexibilityOn-time
Korean AirCheapest£714Average£933FlexibilityNo 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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