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Cheap flights from London Heathrow Airport to Busan from £342

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 21/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — PUS
13 Jul — 20 Jul1
1 adult

Cheap 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 8 July 2025.

Round-trip from

£476

One-way from

£342

Popular in

January

Cheapest in

June

Average price

£1,019
Air China
  • Air China
  • 15/11-23/11
  • 2 total stops
  • 66h 30m total
  • London to Busan
Air China
  • Air China
  • 21/9
  • 1 total stop
  • 29h 05m total
  • London to Busan
Highest demand for flights based on searches. 17% potential increase in price (£124 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£22 potential savings vs. average return price).
Average for round-trip flights in July 2025

Find flight deals from Heathrow to Busan

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 8 July 2025.

Sat 15/1120:25LHR - PUS
1 stop30h 20mAir China
Sun 23/1112:45PUS - LHR
1 stop36h 10mAir China
Deal found 6/7£476
Sat 29/1117:40LHR - PUS
2 stops29h 25mMultiple Airlines
Sun 7/1209:45PUS - LHR
2 stops39h 10mMultiple Airlines
Deal found 7/7£546
Tue 21/1019:50LHR - PUS
1 stop28h 00mVietnam Airlines
Mon 3/1109:30PUS - LHR
1 stop30h 45mVietnam Airlines
Deal found 6/7£762

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 8 July 2025.
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 15/11

20:25-11:45

1 stop30h 20m

Busan Gimhae

Sun 23/11

12:45-15:55

1 stop36h 10m

£476

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Sat 29/11

17:40-08:05

2 stops29h 25m

Busan Gimhae

Sun 7/12

09:45-15:55

2 stops39h 10m

£546

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Tue 21/10

19:50-07:50

1 stop28h 00m

Busan Gimhae

Mon 3/11

09:30-07:15

1 stop30h 45m

£762

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Sun 21/9

22:40-11:45

1 stop29h 05m

£342

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Sun 21/9

21:00-17:45

2 stops36h 45m

£346

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Sun 28/9

21:20-16:50

1 stop35h 30m

£360

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Tue 30/9

19:50-07:50

1 stop28h 00m

£581

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Tue 30/9

19:35-20:35

1 stop17h 00m

£587

Flights are sorted by cheapest return flights first.

Deals found on 6/7

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 8 July 2025.
Get a feel of what it's like to fly with Korean Air, Vietnam Airlines, andChina Eastern 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.

Food

8.1

Comfort

8.3

Entertainment

8.2

Boarding

8.5

Overall

8.4

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.

Food

8.1

Comfort

8.3

Entertainment

8.2

Boarding

8.5

Overall

8.4

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.

Food

8.1

Comfort

8.3

Entertainment

8.2

Boarding

8.5

Overall

8.4

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.

Food

8.1

Comfort

8.3

Entertainment

8.2

Boarding

8.5

Overall

8.4

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.

Food

8.1

Comfort

8.3

Entertainment

8.2

Boarding

8.5

Overall

8.4

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. 2 airlines have flights to Busan Gimhae from London Heathrow on a regular basis.

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

    Air China, at £476, was found to be the cheapest airline from London Heathrow Airport to Busan. An alternate airline flying to your destination would be Vietnam Airlines. These flights start at 42% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from London Heathrow Airport to Busan one-way?

    The cheapest airline one-way is Air China, with whom users have recently found tickets for as low as £342. However, be on the lookout for offers from China Eastern and Vietnam Airlines, as they are both options that can get you from London Heathrow Airport to Busan for a low price.

  • 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 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 8 July 2025.
AirlineCheapestAverageFlexibilityOn-time
Air ChinaCheapest£411Average£534FlexibilityNo cancel feeOn-time67%
Search Air China flights
Korean AirCheapest£807Average£903FlexibilityNo cancel feeOn-time81%
Search Korean Air flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Heathrow to Busan?

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

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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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