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£303+ Cheap flights to South Korea

— ICN
25 Nov — 2 Dec1
1 adult
1 adult, Economy, 0 bags

Flights to South Korea in 2026

Enter your travel dates to find the best prices.

Cheapest flights to South Korea

Mon 16/1121:30 -
1 stop29h 55m
Thu 3/1213:30 -
1 stop37h 25m
Deal found 21/10£469
Sun 22/1121:30 -
1 stop29h 55m
Thu 3/1213:30 -
1 stop37h 25m
Deal found 22/10£469
Thu 3/1221:30 -
1 stop29h 55m
Thu 17/1213:30 -
1 stop37h 25m
Deal found 22/10£477
Tue 1/1210:40 -
1 stop14h 55m
Sat 5/1222:25 -
1 stop17h 45m
Deal found 22/10£478
Thu 3/1210:30 -
1 stop24h 20m
Thu 17/1212:00 -
1 stop27h 30m
Deal found 22/10£481
Tue 10/1121:30 -
1 stop29h 55m
Thu 26/1113:30 -
1 stop37h 25m
Deal found 26/10£493

Find flights to South Korea

Explore South Korea
Flights to Seoul
Flights to Busan
Flights to Jeju City
Flights to Daegu

Find flight deals to South Korea

Return from

£458

One-way from

£303

Popular in

July

Cheapest in

January

Average price

£676

Good round-trip deal

£727 or less

Good one-way deal

£539 or less
China Southern
  • China Southern
  • 2/3-11/3
  • 2 total stops
  • 67h 20m total
  • London to Seoul
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China Southern
  • China Southern
  • 30/11-31/12
  • 1 total stop
  • 29h 55m total
  • London to South Korea
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Highest demand for flights based on searches. 10% potential increase in price (£77 potential increase over avg. return price).
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Cheapest flight prices on average. 1% potential price decrease (£12 potential savings vs. average return price).
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Average for return flights in October 2026
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Price to beat on a round-trip flight from London to South Korea.
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Price to beat on a one-way flight from London to South Korea.
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights to South Korea that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest return flight

LondonSeoul

LHR London Heathrow - GMP Seoul Gimpo Intl

LHRGMP

London Heathrow

Thu 21/1

21:30-12:25

1 stop29h 55m

Seoul Gimpo Intl

Wed 31/12

00:00-16:00

Nonstop0h 00m

£305

LondonSeoul

LHR London Heathrow - GMP Seoul Gimpo Intl

LHRGMP

London Heathrow

Thu 21/1

21:30-12:25

1 stop29h 55m

Seoul Gimpo Intl

Wed 31/12

00:00-16:00

Nonstop0h 00m

£305

LondonBusan

LGW London Gatwick - PUS Busan Gimhae

LGWPUS

London Gatwick

Mon 2/11

07:20-12:30

3 stops44h 10m

Busan Gimhae

Wed 31/12

00:00-16:00

Nonstop0h 00m

£374

LondonJeju City

LGW London Gatwick - CJU Jeju City

LGWCJU

London Gatwick

Tue 1/12

10:40-10:35

1 stop14h 55m

Jeju City

Sat 5/12

22:25-07:10

1 stop17h 45m

£478

LondonBusan

LGW London Gatwick - PUS Busan Gimhae

LGWPUS

London Gatwick

Sun 29/11

17:00-09:45

2 stops31h 45m

Busan Gimhae

Sat 12/12

12:35-06:30

1 stop26h 55m

£517

LondonJeju City

LGW London Gatwick - CJU Jeju City

LGWCJU

London Gatwick

Tue 8/12

19:30-10:05

2 stops29h 35m

Jeju City

Tue 15/12

18:55-06:30

1 stop20h 35m

£527

LondonBusan

LGW London Gatwick - PUS Busan Gimhae

LGWPUS

London Gatwick

Tue 8/12

06:10-11:35

2 stops20h 25m

Busan Gimhae

Tue 15/12

17:50-06:30

1 stop21h 40m

£532

LondonJeju City

LGW London Gatwick - CJU Jeju City

LGWCJU

London Gatwick

Wed 9/12

06:10-10:05

2 stops18h 55m

Jeju City

Wed 16/12

13:50-06:30

1 stop25h 40m

£543

LondonBusan

LGW London Gatwick - PUS Busan Gimhae

LGWPUS

London Gatwick

Sat 5/12

12:00-11:35

2 stops38h 35m

Busan Gimhae

Sat 12/12

17:50-06:30

1 stop21h 40m

£555

LondonBusan

LGW London Gatwick - PUS Busan Gimhae

LGWPUS

London Gatwick

Mon 1/3

10:30-16:50

1 stop21h 20m

Busan Gimhae

Thu 11/3

17:50-06:30

1 stop21h 40m

£579

Flights are sorted by cheapest return flights first.

Deals found on 25/10

Showing 1-10 of 33 resultsSorted by cheapest first
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Best time to book a flight to South Korea

Have a flexible travel schedule? Discover the best time to fly to South Korea with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight to South Korea

How long is the flight to South Korea?

On average, a flight from London to South Korea takes 16 hours 5 minutes. Flights to South Korea from other popular cities in United Kingdom will vary in length. Below are a few examples of popular routes and their flight times.

Weekly flight availability to South Korea

The most flights from London to South Korea are scheduled on a Monday (5 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (3 on average).

What are the most popular airlines that fly to South Korea?

The most popular airlines flying from London to South Korea are Virgin Atlantic, Asiana Airlines and Korean Air.

Virgin Atlantic
Virgin Atlantic
From £561
Asiana Airlines
Asiana Airlines
From £593
Lufthansa
Lufthansa
From £424
Air China
Air China
From £341

What are the cheapest airlines that fly to South Korea?

The cheapest airlines flying from London to South Korea are China Eastern, Air China and China Southern.

Rainfall in South Korea by month

In terms of precipitation, rainfall in South Korea ranges from 27.0 - 253.0 inches per month. July is typically the wettest month, when rainfall can reach 253.0 mm. December is typically the driest time to visit South Korea when rainfall is around 27.0 mm.

Temperature in South Korea by month

If weather is an important factor for your trip to South Korea, 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 25.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).

When is the best time to book a flight to South Korea?

Booking 73 days in advance of your planned departure date is, on average, the best time to get cheap flights to South Korea. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What are the most popular places to fly to in South Korea?

The most popular places in South Korea to fly to are Seoul, Incheon, Jeju City and Busan.

Reviews of airlines servicing South Korea

See what other customers who have flown with Korean Air,Asiana Airlines, andVirgin Atlantic to South Korea have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very Good
1,219 reviews
Check prices

Crew

8.7

Overall

8.4

Comfort

8.3

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
1,219 reviews
Korean Air
8.4
Very Good
1,219 reviews
Check prices

Crew

8.7

Overall

8.4

Comfort

8.3

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.
Asiana Airlines
8.1
Very Good
567 reviews
Korean Air
8.4
Very Good
1,219 reviews
Check prices

Crew

8.7

Overall

8.4

Comfort

8.3

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.
Virgin Atlantic
7.5
Good
697 reviews
Korean Air
8.4
Very Good
1,219 reviews
Check prices

Crew

8.7

Overall

8.4

Comfort

8.3

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
7.5
Good
166 reviews
Korean Air
8.4
Very Good
1,219 reviews
Check prices

Crew

8.7

Overall

8.4

Comfort

8.3

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.
Lufthansa
6.8
Okay
8,291 reviews
Korean Air
8.4
Very Good
1,219 reviews
Check prices

Crew

8.7

Overall

8.4

Comfort

8.3

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.

FAQs about flying to South Korea

  • Can I find cheaper flights to South Korea if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to South Korea on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to South Korea?

    Based on reviews from Cheapflights users, Korean Air is rated the highest out of the airlines that fly to South Korea.

  • What is the cheapest airport to fly to in South Korea?

    Seoul Gimpo Intl is currently the cheapest airport to fly to in South Korea. One-way flights to Seoul Gimpo Intl typically cost £20, while return flights cost around £37.

  • How much is a return flight to South Korea?

    A return flight to South Korea will typically cost around £174, however they can be found for as little as £95.

  • Where does the fastest flight to South Korea depart from?

    For those looking to save time traveling to South Korea, London offers the quickest one-way flight (12 hours 20 minutes).

  • Does Incheon Intl have car hire?

    Yes. Those touching down at Incheon Intl can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to Incheon Intl?

    Yes. Incheon Intl has hotels nearby for those requiring accommodations. Darakhyu Incheon Airport Terminal 2 Capsule Hotel by Walkerhill is the closest property to Incheon Intl (0.0 mi away from Incheon Intl).

See more FAQs

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