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Cheap flights from London Heathrow Airport to Busan from £422

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 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — PUS
24 Jun — 1 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 25 May 2026.

Sun 15/1121:30
LHR
-
PUS
2 stops25h 40m
Multiple Airlines
Sat 28/1116:10
PUS
-
LHR
2 stops35h 25m
Multiple Airlines
Deal found 22/5£671
Wed 23/921:20
LHR
-
PUS
1 stop35h 30m
Multiple Airlines
Wed 7/1012:35
PUS
-
LHR
1 stop38h 05m
Multiple Airlines
Deal found 22/5£757
Wed 17/616:35
LHR
-
PUS
1 stop19h 20m
Multiple Airlines
Tue 30/608:50
PUS
-
LHR
2 stops43h 10m
Multiple Airlines
Deal found 25/5£787
Fri 5/620:50
LHR
-
PUS
2 stops30h 45m
Multiple Airlines
Fri 12/617:50
PUS
-
LHR
1 stop32h 50m
Multiple Airlines
Deal found 25/5£788
Thu 18/616:35
LHR
-
PUS
1 stop19h 10m
Asiana Airlines
Thu 25/620:20
PUS
-
LHR
1 stop26h 00m
Asiana Airlines
Deal found 21/5£791
Thu 18/616:35
LHR
-
PUS
1 stop20h 30m
Multiple Airlines
Tue 30/608:50
PUS
-
LHR
2 stops43h 10m
Multiple Airlines
Deal found 25/5£803
Sun 21/616:35
LHR
-
PUS
1 stop32h 55m
Asiana Airlines
Sun 28/608:00
PUS
-
LHR
1 stop38h 20m
Asiana Airlines
Deal found 22/5£808
Wed 17/607:00
LHR
-
PUS
2 stops25h 50m
Multiple Airlines
Sun 28/612:45
PUS
-
LHR
1 stop15h 40m
Multiple Airlines
Deal found 25/5£815
Sun 7/616:35
LHR
-
PUS
1 stop19h 00m
Multiple Airlines
Fri 12/617:50
PUS
-
LHR
1 stop32h 50m
Multiple Airlines
Deal found 25/5£817
Wed 17/616:35
LHR
-
PUS
1 stop19h 10m
Asiana Airlines
Sun 28/619:00
PUS
-
LHR
1 stop27h 20m
Asiana Airlines
Deal found 25/5£820

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 25 May 2026.

Round-trip from

£671

One-way from

£422

Popular in

August

Cheapest in

November

Average price

£610
15/11-28/11
  • 15/11-28/11
  • 4 total stops
  • 61h 05m total
  • London to Busan
Search Deals
1/9
  • 1/9
  • 3 total stops
  • 41h 05m total
  • London to Busan
Search Deals
Highest demand for flights based on searches. 31% potential increase in price (£327 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease (£58 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 25 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

Thu 18/6

16:35-19:45

1 stop19h 10m

Busan Gimhae

Thu 25/6

20:20-14:20

1 stop26h 00m

£791

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Tue 17/11

06:20-11:35

2 stops20h 15m

Busan Gimhae

Sat 21/11

12:35-18:20

2 stops62h 45m

£872

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Tue 17/11

16:35-08:10

1 stop30h 35m

Busan Gimhae

Sat 21/11

12:00-14:20

1 stop35h 20m

£912

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Fri 14/8

16:35-19:45

1 stop19h 10m

Busan Gimhae

Wed 19/8

19:00-14:20

1 stop27h 20m

£922
Fastest return journey

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Wed 17/6

19:35-18:20

1 stop14h 45m

Busan Gimhae

Sat 27/6

08:00-17:20

1 stop17h 20m

£933

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Fri 20/11

21:00-11:35

1 stop29h 35m

Busan Gimhae

Thu 3/12

12:35-20:50

2 stops41h 15m

£950

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Sun 5/7

22:15-21:30

2 stops39h 15m

Busan Gimhae

Sun 12/7

11:00-17:05

1 stop38h 05m

£952

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Mon 6/7

09:30-06:10

2 stops36h 40m

Busan Gimhae

Sat 11/7

10:40-07:00

2 stops28h 20m

£982

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Fri 20/11

06:30-10:50

2 stops19h 20m

Busan Gimhae

Thu 3/12

11:50-16:55

1 stop38h 05m

£1,035
Cheapest one-way

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Tue 1/9

20:00-21:05

3 stops41h 05m

£422

Flights are sorted by cheapest return flights first.

Deals found on 20/5

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 25 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

Boarding

8.5

Crew

8.7

Entertainment

8.2

Food

8.1

Overall

8.4

Comfort

8.3

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

Boarding

8.5

Crew

8.7

Entertainment

8.2

Food

8.1

Overall

8.4

Comfort

8.3

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 14h 45m. Fly via Asiana Airlines, China Eastern, or Korean Air 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 £712, 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 25 May 2026.
AirlineCheapestAverageFlexibilityOn-time
Korean AirCheapest£712Average£931FlexibilityNo 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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