Cheap flights from London Heathrow Airport to Busan from £325

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 3/11. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — PUS
27 Aug — 3 Sep1
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 22 August 2025.

Round-trip from

£385

One-way from

£325

Popular in

January

Cheapest in

June

Average price

£1,053
China Eastern
  • China Eastern
  • 5/11-16/11
  • 2 total stops
  • 67h 30m total
  • London to Busan
China Eastern
  • China Eastern
  • 3/11
  • 1 total stop
  • 29h 35m total
  • London to Busan
Highest demand for flights based on searches. 19% potential increase in price (£154 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£20 potential savings vs. average return price).
Average for round-trip flights in August 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 22 August 2025.

Wed 5/1121:00LHR - PUS
1 stop29h 35mChina Eastern
Sun 16/1112:35PUS - LHR
1 stop37h 55mChina Eastern
Deal found 20/8£385
Thu 6/1121:00LHR - PUS
1 stop29h 35mChina Eastern
Sun 16/1112:35PUS - LHR
1 stop37h 55mChina Eastern
Deal found 20/8£386
Mon 3/1121:00LHR - PUS
1 stop29h 35mChina Eastern
Mon 10/1112:35PUS - LHR
1 stop37h 55mChina Eastern
Deal found 21/8£405
Wed 5/1121:00LHR - PUS
1 stop29h 35mChina Eastern
Sat 15/1112:35PUS - LHR
1 stop37h 55mChina Eastern
Deal found 20/8£426
Fri 29/821:20LHR - PUS
1 stop30h 15mMultiple Airlines
Thu 27/1112:35PUS - LHR
1 stop37h 55mMultiple Airlines
Deal found 20/8£476
Wed 5/1117:40LHR - PUS
1 stop33h 05mAir China
Sun 16/1112:45PUS - LHR
1 stop36h 10mAir China
Deal found 20/8£484
Thu 6/1121:30LHR - PUS
2 stops25h 40mMultiple Airlines
Sun 16/1112:35PUS - LHR
1 stop37h 55mMultiple Airlines
Deal found 20/8£548
Thu 6/1120:25LHR - PUS
1 stop30h 20mAir China
Sat 15/1112:45PUS - LHR
1 stop36h 10mAir China
Deal found 20/8£569
Wed 27/820:25LHR - PUS
1 stop31h 20mAir China
Sat 6/912:45PUS - LHR
1 stop15h 45mAir China
Deal found 21/8£574
Wed 5/1121:30LHR - PUS
2 stops25h 40mMultiple Airlines
Sat 15/1116:10PUS - LHR
2 stops34h 45mMultiple Airlines
Deal found 20/8£580
Wed 5/1121:30LHR - PUS
2 stops25h 35mMultiple Airlines
Sun 16/1112:35PUS - LHR
1 stop37h 55mMultiple Airlines
Deal found 20/8£625

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 22 August 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

Wed 5/11

21:00-11:35

1 stop29h 35m

Busan Gimhae

Sun 16/11

12:35-17:30

1 stop37h 55m

£385

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Thu 6/11

21:00-11:35

1 stop29h 35m

Busan Gimhae

Sun 16/11

12:35-17:30

1 stop37h 55m

£386

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Mon 3/11

21:00-11:35

1 stop29h 35m

Busan Gimhae

Mon 10/11

12:35-17:30

1 stop37h 55m

£405

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Wed 5/11

21:00-11:35

1 stop29h 35m

Busan Gimhae

Sat 15/11

12:35-17:30

1 stop37h 55m

£426

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Wed 5/11

17:40-11:45

1 stop33h 05m

Busan Gimhae

Sun 16/11

12:45-15:55

1 stop36h 10m

£484

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Thu 6/11

21:30-08:10

2 stops25h 40m

Busan Gimhae

Sun 16/11

12:35-17:30

1 stop37h 55m

£548

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Tue 27/1

20:25-11:45

1 stop30h 20m

Busan Gimhae

Sat 28/2

15:25-15:55

2 stops33h 30m

£551

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Thu 6/11

20:25-11:45

1 stop30h 20m

Busan Gimhae

Sat 15/11

12:45-15:55

1 stop36h 10m

£569

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Thu 6/11

21:30-08:10

2 stops25h 40m

Busan Gimhae

Sat 15/11

16:10-17:55

2 stops34h 45m

£580

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Wed 5/11

21:30-08:10

2 stops25h 40m

Busan Gimhae

Sat 15/11

16:10-17:55

2 stops34h 45m

£580

Flights are sorted by cheapest return flights first.

Deals found on 21/8

Showing 1-10 of 24 results
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2
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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 22 August 2025.
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.

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Crew

8.7

Food

8.1

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.

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Crew

8.7

Food

8.1

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.

Entertainment

8.2

Boarding

8.5

Comfort

8.3

Crew

8.7

Food

8.1

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 29h 35m. Fly via China Eastern or Air China 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 £416, 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 52% 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

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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 22 August 2025.
AirlineCheapestAverageFlexibilityOn-time
Air ChinaCheapest£416Average£571FlexibilityNo cancel feeOn-time67%
Search Air China flights
Korean AirCheapest£817Average£920FlexibilityNo 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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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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