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Cheap flights from London Heathrow Airport to Busan from £318

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 8/3. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — PUS
9 Mar — 16 Mar1
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 7 February 2026.

Thu 12/317:40
LHR
-
PUS
1 stop33h 05m
Air China
Mon 16/312:45
PUS
-
LHR
1 stop36h 10m
Air China
Deal found 6/2£425
Mon 1/620:25
LHR
-
PUS
1 stop31h 20m
Air China
Wed 10/612:45
PUS
-
LHR
1 stop15h 40m
Air China
Deal found 4/2£426
Tue 14/422:40
LHR
-
PUS
1 stop29h 05m
Air China
Tue 28/412:45
PUS
-
LHR
1 stop15h 40m
Air China
Deal found 4/2£431
Sat 25/422:40
LHR
-
PUS
1 stop29h 05m
Air China
Fri 8/512:45
PUS
-
LHR
1 stop36h 55m
Air China
Deal found 5/2£436
Tue 10/317:40
LHR
-
PUS
1 stop33h 05m
Air China
Fri 27/312:45
PUS
-
LHR
1 stop36h 10m
Air China
Deal found 7/2£456
Wed 6/522:40
LHR
-
PUS
1 stop29h 05m
Air China
Wed 20/512:45
PUS
-
LHR
1 stop15h 40m
Air China
Deal found 4/2£471
Thu 28/520:25
LHR
-
PUS
1 stop31h 20m
Air China
Thu 11/612:45
PUS
-
LHR
1 stop15h 40m
Air China
Deal found 7/2£498

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 7 February 2026.

Round-trip from

£425

One-way from

£318

Popular in

August

Cheapest in

June

Average price

£917
Air China
  • Air China
  • 12/3-16/3
  • 2 total stops
  • 69h 15m total
  • London to Busan
Search Deals
8/3
  • 8/3
  • 2 total stops
  • 28h 20m total
  • London to Busan
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (£133 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£16 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 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 7 February 2026.
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

Thu 12/3

17:40-11:45

1 stop33h 05m

Busan Gimhae

Mon 16/3

12:45-15:55

1 stop36h 10m

£425

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Tue 10/3

20:25-11:45

1 stop30h 20m

Busan Gimhae

Fri 27/3

12:45-15:55

1 stop36h 10m

£456

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Thu 28/5

20:25-11:45

1 stop31h 20m

Busan Gimhae

Thu 11/6

12:45-20:25

1 stop15h 40m

£498

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Sat 25/4

21:00-07:00

2 stops26h 00m

Busan Gimhae

Sun 10/5

11:00-17:05

1 stop38h 05m

£588

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Sun 26/4

21:20-21:10

1 stop15h 50m

Busan Gimhae

Sun 10/5

11:00-17:05

1 stop38h 05m

£601

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Sat 25/4

22:40-07:00

2 stops24h 20m

Busan Gimhae

Fri 8/5

20:00-16:30

1 stop28h 30m

£604

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Thu 12/3

21:00-11:35

1 stop29h 35m

Busan Gimhae

Mon 16/3

17:50-10:30

2 stops49h 40m

£607

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Tue 10/3

21:00-11:35

1 stop29h 35m

Busan Gimhae

Fri 27/3

17:50-20:50

2 stops36h 00m

£613

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Sun 8/3

21:30-10:50

2 stops28h 20m

£318

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Wed 8/4

21:00-07:45

2 stops26h 45m

£320

Flights are sorted by cheapest return flights first.

Deals found on 5/2

Showing 1-10 of 18 results
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

What is the cheapest month to book a flight from London Heathrow Airport to Busan?

Currently, March is the cheapest month in which you can book a flight from London Heathrow Airport to Busan (average of £431). Flying from London Heathrow Airport to Busan in February is currently the most expensive (average of £917). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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 7 February 2026.
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.
Korean Air
8.4
Very Good
1,188 reviews
Check prices

Overall

8.4

Comfort

8.3

Crew

8.7

Entertainment

8.2

Boarding

8.5

Food

8.1

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
1,188 reviews
Korean Air
8.4
Very Good
1,188 reviews
Check prices

Overall

8.4

Comfort

8.3

Crew

8.7

Entertainment

8.2

Boarding

8.5

Food

8.1

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.
Air China
7.2
Good
138 reviews
Korean Air
8.4
Very Good
1,188 reviews
Check prices

Overall

8.4

Comfort

8.3

Crew

8.7

Entertainment

8.2

Boarding

8.5

Food

8.1

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 33h 05m. Fly via Air China to get the fastest option. Airlines will cover a distance of 5709 mi.

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

    Air China, at £436, 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 45% 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.

  • What is the cheapest month to book a flight from London Heathrow Airport to Busan?

    Currently, March is the cheapest month in which you can book a flight from London Heathrow Airport to Busan (average of £431). Flying from London Heathrow Airport to Busan in February is currently the most expensive (average of £917). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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 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 7 February 2026.
AirlineCheapestAverageFlexibilityOn-time
Air ChinaCheapest£436Average£677FlexibilityNo cancel feeOn-time67%
Search Air China flights
Korean AirCheapest£879Average£924FlexibilityNo 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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