Find flights
When to book
Airlines
FAQs

Cheap flights from London Heathrow Airport to Busan from £307

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 25/8. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — PUS
11 Aug — 18 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 12 July 2026.

Tue 18/820:25
LHR
-
PUS
1 stop31h 20m
Air China
Tue 25/812:45
PUS
-
LHR
1 stop15h 40m
Air China
Deal found 10/7£585
Wed 26/822:40
LHR
-
PUS
1 stop29h 05m
Air China
Wed 2/912:45
PUS
-
LHR
1 stop15h 40m
Air China
Deal found 12/7£605
Tue 18/820:50
LHR
-
PUS
2 stops30h 45m
Multiple Airlines
Tue 25/812:45
PUS
-
LHR
1 stop15h 40m
Multiple Airlines
Deal found 10/7£686
Mon 10/809:55
LHR
-
PUS
2 stops27h 35m
Multiple Airlines
Mon 17/812:45
PUS
-
LHR
1 stop15h 40m
Multiple Airlines
Deal found 11/7£701
Thu 17/921:20
LHR
-
PUS
1 stop35h 30m
China Eastern
Sun 20/912:35
PUS
-
LHR
1 stop38h 05m
China Eastern
Deal found 8/7£703
Fri 21/822:40
LHR
-
PUS
1 stop23h 50m
Multiple Airlines
Tue 25/812:45
PUS
-
LHR
1 stop15h 40m
Multiple Airlines
Deal found 9/7£712
Wed 26/821:20
LHR
-
PUS
1 stop16h 10m
Multiple Airlines
Fri 18/906:45
PUS
-
LHR
2 stops45h 05m
Multiple Airlines
Deal found 11/7£716
Thu 20/822:40
LHR
-
PUS
1 stop23h 50m
Multiple Airlines
Tue 25/812:45
PUS
-
LHR
1 stop15h 40m
Multiple Airlines
Deal found 9/7£718
Sun 13/921:20
LHR
-
PUS
1 stop35h 30m
China Eastern
Sun 20/919:25
PUS
-
LHR
2 stops31h 15m
China Eastern
Deal found 10/7£721
Wed 26/822:40
LHR
-
PUS
1 stop29h 05m
Multiple Airlines
Wed 2/907:00
PUS
-
LHR
2 stops20h 20m
Multiple Airlines
Deal found 12/7£722

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 12 July 2026.

Round-trip from

£585

One-way from

£307

Popular in

July

Cheapest in

May

Average price

£1,406
Air China
  • Air China
  • 18/8-25/8
  • 2 total stops
  • 47h 00m total
  • London to Busan
Search Deals
Air China
  • Air China
  • 25/8
  • 1 total stop
  • 31h 20m total
  • London to Busan
Search Deals
High demand for flights, 4% potential price rise
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£35 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 12 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 26/8

22:40-11:45

1 stop29h 05m

Busan Gimhae

Wed 2/9

12:45-20:25

1 stop15h 40m

£605

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Wed 26/8

21:20-16:50

1 stop35h 30m

Busan Gimhae

Fri 18/9

12:45-20:25

1 stop15h 40m

£737

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Sun 13/9

21:20-16:50

1 stop35h 30m

Busan Gimhae

Sun 20/9

19:25-18:40

2 stops31h 15m

£738

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Fri 20/11

21:00-16:50

1 stop34h 50m

Busan Gimhae

Thu 3/12

17:50-17:30

1 stop32h 40m

£768

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Wed 19/8

18:55-07:05

1 stop28h 10m

Busan Gimhae

Thu 27/8

12:45-20:25

1 stop15h 40m

£770

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Tue 15/9

21:20-17:50

2 stops36h 30m

Busan Gimhae

Tue 22/9

18:55-18:40

2 stops31h 45m

£847

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Sun 13/9

21:20-16:50

1 stop35h 30m

Busan Gimhae

Tue 22/9

12:35-18:40

1 stop38h 05m

£852
Fastest return journey

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Mon 14/9

14:45-19:35

2 stops20h 50m

Busan Gimhae

Tue 22/9

07:00-21:25

2 stops22h 25m

£871

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Sun 13/9

21:20-11:35

1 stop30h 15m

Busan Gimhae

Sat 19/9

12:35-18:40

1 stop38h 05m

£882

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Thu 17/9

18:55-07:50

1 stop28h 55m

Busan Gimhae

Mon 21/9

11:00-17:50

2 stops38h 50m

£886

Flights are sorted by cheapest return flights first.

Deals found on 10/7

Showing 1-10 of 23 resultsSorted by cheapest first
1
2
3

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 12 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
1,221 reviews
Check prices

Food

8.1

Overall

8.4

Entertainment

8.2

Crew

8.7

Comfort

8.3

Boarding

8.5

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
1,221 reviews
Korean Air
8.4
Very Good
1,221 reviews
Check prices

Food

8.1

Overall

8.4

Entertainment

8.2

Crew

8.7

Comfort

8.3

Boarding

8.5

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 29h 05m. 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 is the cheapest airline to fly from London Heathrow Airport to Busan round-trip?

    Korean Air, at £717, was found to be the cheapest airline from London Heathrow Airport to Busan.. This flight start at 24% 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 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 12 July 2026.
AirlineCheapestAverageFlexibilityOn-time
Korean AirCheapest£717Average£935FlexibilityNo 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.