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฿3,456+ Cheap flights to South Korea

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 20/1. Fares are subject to change and may not be available on all flights or dates of travel.
— ICN
15 Feb — 22 Feb1
1 adult
1 adult, Economy, 0 bags

Flights to South Korea in 2026

Find the latest flights to South Korea in 2026, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 17,341 searches and data was last updated on 16 January 2026.

Return from

฿5,247

One-way from

฿3,456

Popular in

December

Cheapest in

September

Average price

฿9,991
Thai AirAsia X
  • Thai AirAsia X
  • 23/3-30/3
  • Nonstop
  • 11h 45m total
  • Bangkok to Seoul
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Thai Vietjet Air
  • Thai Vietjet Air
  • 20/1
  • Nonstop
  • 5h 30m total
  • Bangkok to South Korea
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (฿868 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿203 potential savings vs. average return price).
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Average for return flights in January 2026
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Find flights to South Korea

Browse one-way and return flights deals to South Korea on Cheapflights. Flight deals are based on user searches and were last updated on 16 January 2026
Explore South Korea
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Flights to Busan

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Enter your travel dates to find the best prices.

Cheapest flights to South Korea
Explore the most affordable flight options available to South Korea. Find the lowest fares based on data from user searches, with prices last updated on 16 January 2026.

Mon 23/302:30
DMK
-
ICN
Nonstop5h 35m
Thai AirAsia X
Mon 30/311:20
ICN
-
DMK
Nonstop6h 10m
Thai AirAsia X
Deal found 14/1฿5,247
Mon 23/302:25
BKK
-
ICN
Nonstop5h 30m
Thai Vietjet Air
Mon 30/312:10
ICN
-
BKK
Nonstop5h 50m
Thai Vietjet Air
Deal found 14/1฿5,310
Thu 3/902:30
DMK
-
ICN
Nonstop5h 35m
Thai AirAsia X
Thu 10/911:20
ICN
-
DMK
Nonstop6h 10m
Thai AirAsia X
Deal found 14/1฿5,372
Sun 6/902:25
BKK
-
ICN
Nonstop5h 35m
Multiple Airlines
Fri 11/910:05
ICN
-
BKK
1 stop10h 00m
Multiple Airlines
Deal found 16/1฿5,372
Sun 8/303:40
DMK
-
ICN
Nonstop5h 35m
Thai AirAsia X
Thu 12/311:20
ICN
-
DMK
Nonstop6h 10m
Thai AirAsia X
Deal found 14/1฿5,435
Sat 13/602:25
BKK
-
ICN
Nonstop5h 35m
Thai Vietjet Air
Mon 22/612:10
ICN
-
BKK
Nonstop5h 50m
Thai Vietjet Air
Deal found 15/1฿5,498

Cheapflights Fare Finder

 
Locate flights to South Korea that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 17,341 searches and data was last updated on 16 January 2026.
Use the filters below to find and compare flights to South Korea that are best for you.

Fly from

Bangkok

Route

Depart

Return

Price

BangkokIncheon

DMK - ICN

DMKICN

Bangkok Don Mueang Intl

Fri 13/2

02:30-10:05

Nonstop5h 35m

Incheon Intl

Fri 27/3

11:20-15:30

Nonstop6h 10m

฿6,598

BangkokIncheon

BKK - ICN

BKKICN

Bangkok Suvarnabhumi

Wed 10/6

09:20-01:10

1 stop13h 50m

Incheon Intl

Wed 17/6

12:10-16:00

Nonstop5h 50m

฿6,629

BangkokIncheon

BKK - ICN

BKKICN

Bangkok Suvarnabhumi

Thu 11/6

10:50-06:00

1 stop17h 10m

Incheon Intl

Sun 14/6

12:10-16:00

Nonstop5h 50m

฿6,692

BangkokBusan

BKK - PUS

BKKPUS

Bangkok Suvarnabhumi

Sun 15/2

18:35-06:55

1 stop10h 20m

Busan Gimhae

Thu 19/2

19:30-23:40

Nonstop6h 10m

฿7,258

BangkokJeju City

BKK - CJU

BKKCJU

Bangkok Suvarnabhumi

Mon 2/2

20:05-13:10

2 stops15h 05m

Jeju City

Tue 10/2

07:45-01:30

1 stop19h 45m

฿7,415

BangkokBusan

BKK - PUS

BKKPUS

Bangkok Suvarnabhumi

Thu 26/3

18:35-13:30

1 stop16h 55m

Busan Gimhae

Mon 30/3

18:00-21:45

Nonstop5h 45m

฿7,477

BangkokIncheon

BKK - ICN

BKKICN

Bangkok Suvarnabhumi

Tue 17/3

02:25-09:55

Nonstop5h 30m

Incheon Intl

Fri 20/3

12:10-16:20

Nonstop6h 10m

฿7,635

BangkokBusan

BKK - PUS

BKKPUS

Bangkok Suvarnabhumi

Sun 5/4

22:55-06:20

Nonstop5h 25m

Busan Gimhae

Sun 19/4

18:00-21:45

Nonstop5h 45m

฿7,666

BangkokIncheon

DMK - ICN

DMKICN

Bangkok Don Mueang Intl

Fri 6/2

03:20-10:55

Nonstop5h 35m

Incheon Intl

Mon 9/2

13:30-17:15

Nonstop5h 45m

฿7,697

BangkokIncheon

DMK - ICN

DMKICN

Bangkok Don Mueang Intl

Sat 14/2

03:20-10:55

Nonstop5h 35m

Incheon Intl

Sun 22/2

13:30-17:15

Nonstop5h 45m

฿8,012

Flights are sorted by cheapest return flights first.

Deals found on 16/1

Showing 1-10 of 33 results
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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
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 to South Korea

How long is the flight to South Korea?

On average, a flight from Bangkok to South Korea takes 12 hours 5 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 Friday (44 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (38 on average).

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

The most popular airlines flying from Bangkok to South Korea are Thai AirAsia X, Thai Airways and Air Busan.

Thai AirAsia X
Thai AirAsia X
From ฿3,414
Thai Airways
Thai Airways
From ฿9,202
Air Busan
Air Busan
From ฿4,988
T'way Air
T'way Air
From ฿2,094

What are the cheapest airlines that fly to South Korea?

The cheapest airlines flying from Bangkok to South Korea are Eastar Jet, T'way Air and Thai Vietjet Air.

Rainfall in South Korea by month

Plan your trip to South Korea by taking into account the average rainfall totals 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

Plan your trip to South Korea by taking into account the average temperature totals 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).

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

Destination popularity is based on the amount of flight searches to South Korea in the last few years. This data was updated on 16 January 2026.
The most popular places in South Korea to fly to are Incheon, Seoul, Busan and Jeju City.

Reviews of airlines servicing South Korea

Get insights into the airlines that provide service to South Korea. 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 South Korea. Reviews last updated 16 January 2026.
Read reviews from past customers who have flown AIR PREMIA and Thai Airways to South Korea. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
AIR PREMIA
8.3
Very Good
Check prices

Boarding

8.2

Comfort

8.3

Crew

9.0

Food

7.4

Entertainment

7.1

Overall

8.3

Reviews

1 / 8
10.0
Excellent

Anonymous,Jan 2026

EWR - ICN

Extremely excellent. It is now my airline of choice! Fantastic airline!
AIR PREMIA
8.3
Very Good
AIR PREMIA
8.3
Very Good
Check prices

Boarding

8.2

Comfort

8.3

Crew

9.0

Food

7.4

Entertainment

7.1

Overall

8.3

Reviews

1 / 8
10.0
Excellent

Anonymous,Jan 2026

EWR - ICN

Extremely excellent. It is now my airline of choice! Fantastic airline!
Thai Airways
7.8
Good
378 reviews
AIR PREMIA
8.3
Very Good
Check prices

Boarding

8.2

Comfort

8.3

Crew

9.0

Food

7.4

Entertainment

7.1

Overall

8.3

Reviews

1 / 8
10.0
Excellent

Anonymous,Jan 2026

EWR - ICN

Extremely excellent. It is now my airline of choice! Fantastic airline!

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, T'way 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 ฿563, while return flights cost around ฿4,558.

  • How much is a return flight to South Korea?

    A return flight to South Korea will typically cost around ฿4,574, however they can be found for as little as ฿4,558.

  • 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 (5 hours 5 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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Can Cheapflights find flights to South Korea with no change fees?

Yes, we can. To see specific flights to South Korea with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights to South Korea become cheaper?

Yes, Cheapflights offers price alerts on South Korea flights so you can book your flight when prices are ideal. Enable price alerts 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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