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Cheap flights from London Heathrow Airport to Busan from £331

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
18 Jun — 25 Jun1
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 13 June 2025.

Round-trip from

£637

One-way from

£331

Popular in

January

Cheapest in

June

Average price

£532
China Eastern
  • China Eastern
  • 6/7-20/7
  • 2 total stops
  • 63h 05m total
  • London to Busan
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Air China
  • Air China
  • 21/9
  • 1 total stop
  • 29h 05m total
  • London to Busan
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (£126 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£22 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2025
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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 13 June 2025.

Sun 6/721:20LHR - PUS
1 stop30h 15mChina Eastern
Sun 20/717:50PUS - LHR
1 stop32h 50mChina Eastern
Deal found 11/6£637
Tue 1/722:40LHR - PUS
1 stop29h 05mAir China
Mon 7/712:45PUS - LHR
1 stop37h 00mAir China
Deal found 11/6£649
Tue 1/721:00LHR - PUS
2 stops26h 45mMultiple Airlines
Mon 7/712:45PUS - LHR
1 stop37h 00mMultiple Airlines
Deal found 11/6£697
Sun 24/819:50LHR - PUS
1 stop27h 15mVietnam Airlines
Sun 7/911:00PUS - LHR
1 stop38h 05mVietnam Airlines
Deal found 12/6£712
Mon 29/921:10LHR - PUS
1 stop28h 10mChina Airlines
Thu 30/1011:50PUS - LHR
1 stop38h 15mChina Airlines
Deal found 11/6£840
Sun 15/617:10LHR - PUS
2 stops19h 35mKLM
Fri 4/716:30PUS - LHR
2 stops23h 10mKLM
Deal found 12/6£974
Sun 5/1019:35LHR - PUS
1 stop17h 00mKorean Air
Sat 25/1008:45PUS - LHR
1 stop16h 35mKorean Air
Deal found 11/6£997

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 13 June 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

Sun 6/7

21:20-11:35

1 stop30h 15m

Busan Gimhae

Sun 20/7

17:50-18:40

1 stop32h 50m

£637

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Tue 1/7

22:40-11:45

1 stop29h 05m

Busan Gimhae

Mon 7/7

12:45-17:45

1 stop37h 00m

£649

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Tue 1/7

21:00-07:45

2 stops26h 45m

Busan Gimhae

Mon 7/7

12:45-17:45

1 stop37h 00m

£697

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Sun 24/8

19:50-07:05

1 stop27h 15m

Busan Gimhae

Sun 7/9

11:00-17:05

1 stop38h 05m

£712

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Mon 29/9

21:10-09:20

1 stop28h 10m

Busan Gimhae

Thu 30/10

11:50-17:05

1 stop38h 15m

£840

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Sun 5/10

19:35-20:35

1 stop17h 00m

Busan Gimhae

Fri 24/10

08:45-17:20

1 stop16h 35m

£997

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Sun 21/9

22:40-11:45

1 stop29h 05m

£331

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Mon 22/9

21:00-07:45

2 stops26h 45m

£334

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Wed 1/10

21:20-16:50

1 stop35h 30m

£365

LondonBusan

LHR - PUS

LHRPUS

London Heathrow

Tue 12/8

19:50-07:50

1 stop28h 00m

£534

Flights are sorted by cheapest return flights first.

Deals found on 11/6

Showing 1-10 of 11 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

Rainfall in Busan by month

Plan your trip to Busan by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Busan ranges from 24.0 - 259.0 inches per month. July is typically the wettest month, when rainfall can reach 259.0 mm. December is typically the driest time to visit Busan when rainfall is around 24.0 mm.

Temperature in Busan by month

Plan your trip to Busan by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Busan, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 26.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

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 13 June 2025.
Korean Air
8.4
Very Good
1,091 reviews
Check prices

Food

8.1

Overall

8.4

Comfort

8.3

Entertainment

8.2

Boarding

8.5

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.
Korean Air
8.4
Very Good
1,091 reviews
Korean Air
8.4
Very Good
1,091 reviews
Check prices

Food

8.1

Overall

8.4

Comfort

8.3

Entertainment

8.2

Boarding

8.5

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.
China Airlines
8.3
Very Good
738 reviews
Korean Air
8.4
Very Good
1,091 reviews
Check prices

Food

8.1

Overall

8.4

Comfort

8.3

Entertainment

8.2

Boarding

8.5

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.
KLM
7.8
Good
1,358 reviews
Korean Air
8.4
Very Good
1,091 reviews
Check prices

Food

8.1

Overall

8.4

Comfort

8.3

Entertainment

8.2

Boarding

8.5

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.
Air France
7.5
Good
1,463 reviews
Korean Air
8.4
Very Good
1,091 reviews
Check prices

Food

8.1

Overall

8.4

Comfort

8.3

Entertainment

8.2

Boarding

8.5

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.
Vietnam Airlines
7.5
Good
194 reviews
Korean Air
8.4
Very Good
1,091 reviews
Check prices

Food

8.1

Overall

8.4

Comfort

8.3

Entertainment

8.2

Boarding

8.5

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?

    China Eastern, at £637, was found to be the cheapest airline from London Heathrow Airport to Busan.Alternate airlines flying return to your destination include Air China and Vietnam Airlines. These flights start at 23% 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 £331. 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 13 June 2025.
AirlineCheapestAverageFlexibilityOn-time
Air ChinaCheapest£423Average£565FlexibilityNo cancel feeOn-time67%
Search Air China flights
Korean AirCheapest£808Average£910FlexibilityNo 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?

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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