฿4,410+ Cheap flights to South Korea

— ICN
5 Oct — 12 Oct1
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

Thu 17/922:55 -
Nonstop5h 25m
Sat 26/920:00 -
Nonstop5h 50m
Deal found 3/9฿6,943
Sat 19/900:50 -
Nonstop5h 40m
Sun 27/920:00 -
Nonstop5h 50m
Deal found 3/9฿6,976
Wed 16/900:50 -
Nonstop5h 40m
Fri 25/920:00 -
Nonstop5h 50m
Deal found 3/9฿7,042
Sun 20/900:50 -
Nonstop5h 40m
Mon 28/920:00 -
Nonstop5h 50m
Deal found 1/9฿7,141
Thu 17/922:55 -
Nonstop5h 25m
Fri 25/918:00 -
Nonstop5h 45m
Deal found 4/9฿7,272
Thu 10/901:10 -
Nonstop5h 45m
Sun 13/918:00 -
Nonstop6h 05m
Deal found 1/9฿7,404

Find flights to South Korea

Explore South Korea

Find flight deals to South Korea

Return from

฿7,404

One-way from

฿3,817

Popular in

December

Cheapest in

March

Average price

฿9,806
Jin Air
  • Jin Air
  • 22/9-26/9
  • Nonstop
  • 11h 25m total
  • Bangkok to Seoul
Jeju Air
  • Jeju Air
  • 20/9-31/12
  • Nonstop
  • 5h 40m total
  • Bangkok to South Korea
Highest demand for flights based on searches. 0% potential increase in price.
Cheapest flight prices on average. 1% potential price decrease (฿145 potential savings vs. average return price).
Average for return flights in September 2026

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
Fastest return journey

BangkokIncheon

BKK Bangkok Suvarnabhumi - ICN Incheon Intl

BKKICN

Bangkok Suvarnabhumi

Mon 28/9

01:10-08:55

Nonstop5h 45m

Incheon Intl

Wed 31/12

00:00-22:00

Nonstop0h 00m

฿4,640

BangkokIncheon

BKK Bangkok Suvarnabhumi - ICN Incheon Intl

BKKICN

Bangkok Suvarnabhumi

Mon 28/9

01:10-08:55

Nonstop5h 45m

Incheon Intl

Wed 31/12

00:00-22:00

Nonstop0h 00m

฿4,640

BangkokJeju City

BKK Bangkok Suvarnabhumi - CJU Jeju City

BKKCJU

Bangkok Suvarnabhumi

Sat 19/9

01:10-07:35

1 stop28h 25m

Jeju City

Wed 31/12

00:00-22:00

Nonstop0h 00m

฿4,837

BangkokBusan

BKK Bangkok Suvarnabhumi - PUS Busan Gimhae

BKKPUS

Bangkok Suvarnabhumi

Thu 17/9

22:55-06:20

Nonstop5h 25m

Busan Gimhae

Sat 26/9

20:00-23:50

Nonstop5h 50m

฿6,943

BangkokIncheon

BKK Bangkok Suvarnabhumi - ICN Incheon Intl

BKKICN

Bangkok Suvarnabhumi

Wed 23/9

00:05-07:40

Nonstop5h 35m

Incheon Intl

Mon 28/9

18:00-22:05

Nonstop6h 05m

฿7,799

BangkokBusan

BKK Bangkok Suvarnabhumi - PUS Busan Gimhae

BKKPUS

Bangkok Suvarnabhumi

Wed 16/9

18:45-07:10

1 stop10h 25m

Busan Gimhae

Fri 18/9

08:10-17:45

1 stop11h 35m

฿9,740

BangkokBusan

DMK Bangkok Don Mueang Intl - PUS Busan Gimhae

DMKPUS

Bangkok Don Mueang Intl

Mon 14/9

02:45-22:05

1 stop17h 20m

Busan Gimhae

Sat 19/9

07:45-15:05

1 stop9h 20m

฿10,037

BangkokBusan

BKK Bangkok Suvarnabhumi - PUS Busan Gimhae

BKKPUS

Bangkok Suvarnabhumi

Wed 23/9

23:40-07:05

Nonstop5h 25m

Busan Gimhae

Sun 27/9

19:05-22:40

Nonstop5h 35m

฿10,234

BangkokIncheon

BKK Bangkok Suvarnabhumi - ICN Incheon Intl

BKKICN

Bangkok Suvarnabhumi

Thu 15/10

18:05-22:35

1 stop26h 30m

Incheon Intl

Sun 25/10

10:10-11:15

1 stop27h 05m

฿10,563

BangkokBusan

DMK Bangkok Don Mueang Intl - PUS Busan Gimhae

DMKPUS

Bangkok Don Mueang Intl

Wed 4/11

16:40-06:50

1 stop12h 10m

Busan Gimhae

Sun 8/11

08:30-14:20

1 stop7h 50m

฿10,859

Flights are sorted by cheapest return flights first.

Deals found on 31/8

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 Bangkok to South Korea takes 10 hours 33 minutes. Flights to South Korea from other popular cities in Thailand 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 Bangkok to South Korea are scheduled on a Thursday (45 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (39 on average).

What are the cheapest airlines that fly to South Korea?

The cheapest airlines flying from Bangkok to South Korea are Jin Air, Jeju Air and Thai Vietjet Air.

Rainfall in South Korea by month

In terms of precipitation, rainfall in South Korea ranges from 20.0 - 260.0 mm per month. July is typically the wettest month, when rainfall can reach 260.0 mm. January is typically the driest time to visit South Korea when rainfall is around 20.0 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 74 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 Incheon, Seoul, Busan and Jeju City.

Reviews of airlines servicing South Korea

Read reviews from past customers who have flown Korean Air,AIR PREMIA, andThai Airways to South Korea. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

8.2

Boarding

8.5

Crew

8.7

Comfort

8.3

Food

8.1

Overall

8.4

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.

Entertainment

8.2

Boarding

8.5

Crew

8.7

Comfort

8.3

Food

8.1

Overall

8.4

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 PREMIA
8.1
Very Good

Entertainment

8.2

Boarding

8.5

Crew

8.7

Comfort

8.3

Food

8.1

Overall

8.4

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.

Entertainment

8.2

Boarding

8.5

Crew

8.7

Comfort

8.3

Food

8.1

Overall

8.4

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.

Entertainment

8.2

Boarding

8.5

Crew

8.7

Comfort

8.3

Food

8.1

Overall

8.4

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, Jin 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?

    Jeju City is currently the cheapest airport to fly to in South Korea. One-way flights to Jeju City typically cost ฿590, while return flights cost around ฿6,286.

  • How much is a return flight to South Korea?

    A return flight to South Korea will typically cost around ฿35,390, however they can be found for as little as ฿8,457.

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

    For those looking to save time traveling to South Korea, Chiang Mai offers the quickest one-way flight (4 hours 45 minutes).

  • Does Incheon Intl have rental cars?

    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 km away from Incheon Intl).

See more FAQs

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