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Cheap flights from London Heathrow Airport to Busan from £398

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 12/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — PUS
31 Jul — 7 Aug1
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 1 July 2026.

Wed 2/914:45
LHR
-
PUS
2 stops20h 50m
Multiple Airlines
Wed 30/907:00
PUS
-
LHR
2 stops22h 25m
Multiple Airlines
Deal found 29/6£621
Thu 6/808:40
LHR
-
PUS
3 stops43h 05m
Multiple Airlines
Tue 18/812:35
PUS
-
LHR
1 stop38h 05m
Multiple Airlines
Deal found 29/6£692
Wed 8/721:20
LHR
-
PUS
1 stop30h 15m
China Eastern
Sun 12/712:35
PUS
-
LHR
1 stop38h 05m
China Eastern
Deal found 27/6£704
Sun 29/1121:00
LHR
-
PUS
1 stop34h 50m
Multiple Airlines
Thu 3/1212:45
PUS
-
LHR
1 stop36h 10m
Multiple Airlines
Deal found 29/6£715
Wed 26/821:20
LHR
-
PUS
1 stop30h 15m
China Eastern
Fri 11/917:50
PUS
-
LHR
1 stop32h 50m
China Eastern
Deal found 30/6£747
Fri 17/706:40
LHR
-
PUS
3 stops41h 10m
Multiple Airlines
Sun 26/712:35
PUS
-
LHR
1 stop38h 05m
Multiple Airlines
Deal found 30/6£775
Wed 8/721:20
LHR
-
PUS
1 stop30h 15m
China Eastern
Wed 15/712:35
PUS
-
LHR
1 stop38h 05m
China Eastern
Deal found 29/6£776

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 1 July 2026.

Round-trip from

£621

One-way from

£398

Popular in

March

Cheapest in

May

Average price

£1,210
Air France
  • Air France
  • 2/9-30/9
  • 4 total stops
  • 43h 15m total
  • London to Busan
Search Deals
12/9
  • 12/9
  • 3 total stops
  • 39h 05m total
  • London to Busan
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£121 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£28 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 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 1 July 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 2/9

21:00-07:45

2 stops26h 45m

Busan Gimhae

Wed 30/9

10:00-16:55

1 stop38h 55m

£738

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Wed 26/8

21:20-11:35

1 stop30h 15m

Busan Gimhae

Fri 11/9

17:50-18:40

1 stop32h 50m

£747

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Wed 26/8

21:20-21:30

1 stop16h 10m

Busan Gimhae

Fri 11/9

07:20-19:50

2 stops44h 30m

£779

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Sat 25/7

06:40-06:40

2 stops40h 00m

Busan Gimhae

Tue 11/8

17:50-18:40

1 stop32h 50m

£879
Fastest return journey

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Fri 20/11

11:30-15:10

2 stops18h 40m

Busan Gimhae

Thu 3/12

16:10-07:40

2 stops24h 30m

£906

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Sun 29/11

16:35-08:10

1 stop30h 35m

Busan Gimhae

Tue 1/12

10:25-14:20

1 stop36h 55m

£954

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Fri 20/11

16:35-15:10

1 stop37h 35m

Busan Gimhae

Thu 3/12

12:00-14:20

1 stop35h 20m

£957

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Fri 20/11

21:00-11:35

1 stop29h 35m

Busan Gimhae

Thu 3/12

12:35-18:20

2 stops38h 45m

£966

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Tue 25/8

09:30-20:35

2 stops27h 05m

Busan Gimhae

Sun 30/8

08:05-07:00

2 stops30h 55m

£992
Cheapest one-way

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Sat 12/9

20:50-19:55

3 stops39h 05m

£398

Flights are sorted by cheapest return flights first.

Deals found on 30/6

Showing 1-10 of 18 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 1 July 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
1,220 reviews
Check prices

Food

8.1

Comfort

8.3

Entertainment

8.2

Overall

8.4

Boarding

8.5

Crew

8.7

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
1,220 reviews
Korean Air
8.4
Very Good
1,220 reviews
Check prices

Food

8.1

Comfort

8.3

Entertainment

8.2

Overall

8.4

Boarding

8.5

Crew

8.7

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.

  • What is the cheapest airline to fly from London Heathrow Airport to Busan round-trip?

    Korean Air, at £726, was found to be the cheapest airline from London Heathrow Airport to Busan.. This flight start at 23% 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 1 July 2026.
AirlineCheapestAverageFlexibilityOn-time
Korean AirCheapest£726Average£946FlexibilityNo 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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