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Cheap flights from Thailand to Seoul from ฿3,627

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 12/7. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — SEL
6 Aug — 13 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Thailand to Seoul

Enter your travel dates to find the best prices.

Cheapest flights from Thailand to Seoul
Explore the most affordable flight options available from Thailand to Seoul. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 7 July 2026.

Sun 12/700:50
CNX
-
ICN
Nonstop5h 25m
Air Busan
Thu 27/819:55
ICN
-
CNX
Nonstop5h 55m
Air Busan
Deal found 6/7฿7,885
Sun 6/921:45
CNX
-
ICN
Nonstop5h 20m
Multiple Airlines
Thu 10/919:55
ICN
-
CNX
Nonstop5h 55m
Multiple Airlines
Deal found 3/7฿8,418
Tue 1/921:45
CNX
-
ICN
Nonstop5h 20m
Multiple Airlines
Sat 5/919:55
ICN
-
CNX
Nonstop5h 55m
Multiple Airlines
Deal found 3/7฿8,451
Sun 23/802:25
BKK
-
ICN
Nonstop5h 35m
Thai Vietjet Air
Mon 31/812:10
ICN
-
BKK
Nonstop5h 50m
Thai Vietjet Air
Deal found 2/7฿8,584
Mon 10/822:15
BKK
-
ICN
1 stop16h 20m
Multiple Airlines
Sun 23/818:00
ICN
-
BKK
Nonstop6h 05m
Multiple Airlines
Deal found 5/7฿8,617
Sun 25/1012:20
BKK
-
ICN
1 stop15h 10m
Vietnam Airlines
Thu 29/1000:30
ICN
-
BKK
1 stop18h 30m
Vietnam Airlines
Deal found 1/7฿8,651
Fri 23/1011:55
BKK
-
ICN
1 stop15h 55m
Vietnam Airlines
Thu 29/1010:35
ICN
-
BKK
1 stop9h 20m
Vietnam Airlines
Deal found 5/7฿8,684
Tue 11/802:25
BKK
-
ICN
Nonstop5h 35m
Multiple Airlines
Fri 28/818:00
ICN
-
BKK
Nonstop6h 05m
Multiple Airlines
Deal found 5/7฿8,717
Sun 25/1019:00
BKK
-
ICN
1 stop19h 30m
Multiple Airlines
Fri 30/1012:10
ICN
-
BKK
Nonstop5h 50m
Multiple Airlines
Deal found 1/7฿8,751
Wed 12/819:05
BKK
-
ICN
1 stop8h 45m
Multiple Airlines
Wed 26/818:00
ICN
-
BKK
Nonstop6h 05m
Multiple Airlines
Deal found 5/7฿8,784
Sun 12/702:25
BKK
-
ICN
Nonstop5h 35m
Multiple Airlines
Sun 19/718:00
ICN
-
BKK
Nonstop6h 05m
Multiple Airlines
Deal found 2/7฿8,817
Thu 20/821:45
CNX
-
ICN
Nonstop5h 20m
Multiple Airlines
Thu 27/819:55
ICN
-
CNX
Nonstop5h 55m
Multiple Airlines
Deal found 5/7฿8,817

Find flight deals from Thailand to Seoul

Keep the following information in mind while searching for Thailand to Seoul flight deals. Data was last updated 7 July 2026.

Round-trip from

฿8,418

One-way from

฿3,627

Popular in

December

Cheapest in

March

Average price

฿9,948

Good round-trip deal

฿11,754 or less

Good one-way deal

฿5,164 or less
Air Busan
  • Air Busan
  • 6/9-10/9
  • Nonstop
  • 11h 15m total
  • Thailand to Seoul
Search Deals
Jeju Air
  • Jeju Air
  • 12/7
  • Nonstop
  • 5h 30m total
  • Thailand to Seoul
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (฿6,800 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (฿5,410 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip flight from Thailand to Seoul (SEL).
Search Deals
Price to beat on a one-way flight from Thailand to Seoul (SEL).
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Thailand to Seoul 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 17,341 searches. Data last updated 7 July 2026.
Use the filters below to find and compare flights from Thailand to Seoul that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Chiang MaiIncheon

CNX - ICN

CNXICN

Chiang Mai

Fri 17/7

23:00-06:30

Nonstop5h 30m

Incheon Intl

Mon 20/7

15:55-13:25

2 stops23h 30m

฿9,449

BangkokIncheon

BKK - ICN

BKKICN

Bangkok Suvarnabhumi

Mon 20/7

21:00-16:25

1 stop17h 25m

Incheon Intl

Thu 13/8

10:35-20:00

1 stop11h 25m

฿9,549

BangkokIncheon

BKK - ICN

BKKICN

Bangkok Suvarnabhumi

Mon 24/8

19:30-06:40

1 stop9h 10m

Incheon Intl

Mon 31/8

10:05-18:05

1 stop10h 00m

฿9,616

BangkokSeoul

BKK - GMP

BKKGMP

Bangkok Suvarnabhumi

Fri 17/7

00:50-07:40

1 stop28h 50m

Seoul Gimpo Intl

Wed 22/7

18:50-22:40

1 stop29h 50m

฿10,115

BangkokSeoul

BKK - GMP

BKKGMP

Bangkok Suvarnabhumi

Mon 27/7

00:50-08:15

1 stop29h 25m

Seoul Gimpo Intl

Tue 4/8

19:55-23:50

1 stop29h 55m

฿10,215

BangkokIncheon

BKK - ICN

BKKICN

Bangkok Suvarnabhumi

Wed 22/7

22:15-16:35

1 stop16h 20m

Incheon Intl

Mon 27/7

10:05-21:05

1 stop13h 00m

฿10,314

Phuket CityIncheon

HKT - ICN

HKTICN

Phuket City

Sun 2/8

18:45-06:40

1 stop9h 55m

Incheon Intl

Fri 7/8

17:55-17:50

1 stop25h 55m

฿11,179

Phuket CityIncheon

HKT - ICN

HKTICN

Phuket City

Tue 10/11

18:50-06:30

1 stop9h 40m

Incheon Intl

Wed 11/11

17:55-17:50

1 stop25h 55m

฿11,312

Phuket CityIncheon

HKT - ICN

HKTICN

Phuket City

Sat 7/11

18:50-16:25

1 stop19h 35m

Incheon Intl

Mon 9/11

17:55-17:50

1 stop25h 55m

฿11,312

Phuket CityIncheon

HKT - ICN

HKTICN

Phuket City

Sun 16/8

23:25-07:35

Nonstop6h 10m

Incheon Intl

Sun 23/8

10:35-17:50

1 stop9h 15m

฿11,412

Flights are sorted by cheapest return flights first.

Deals found on 4/7

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Thailand to Seoul

Have a flexible travel schedule? Discover the best time to fly to Seoul from Thailand 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 Thailand to Seoul

What is the cheapest month to book a flight from Thailand to Seoul?

Currently, September is the cheapest month in which you can book a flight from Thailand to Seoul (average of ฿1,664). Flying from Thailand to Seoul in December is currently the most expensive (average of ฿19,065). 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.

What is the cheapest time of day to fly from TH to SEL?

Find hourly flight availability from Thailand to Seoul. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 7 July 2026.

When flying from Thailand to Seoul, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Thailand to Seoul

Explore weekly flight availability from Thailand to Seoul. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 7 July 2026.

The most flights from TH0 to SEL are scheduled on a Monday (35 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (29 on average).

How far ahead should I book a flight from Thailand to Seoul?

The best time to book flights from Thailand to Seoul is 82 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Reviews of airlines servicing Seoul

Get insights into the airlines that provide service to Seoul. 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 Seoul. Reviews last updated 7 July 2026.
Read reviews from past customers who have flown with Korean Air,AIR PREMIA, andThai Airways from Thailand to Seoul. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very Good
1,221 reviews
Check prices

Comfort

8.3

Crew

8.7

Entertainment

8.2

Boarding

8.5

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.
Korean Air
8.4
Very Good
1,221 reviews
Korean Air
8.4
Very Good
1,221 reviews
Check prices

Comfort

8.3

Crew

8.7

Entertainment

8.2

Boarding

8.5

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
8.2
Very Good
Korean Air
8.4
Very Good
1,221 reviews
Check prices

Comfort

8.3

Crew

8.7

Entertainment

8.2

Boarding

8.5

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.
Thai Airways
7.9
Good
409 reviews
Korean Air
8.4
Very Good
1,221 reviews
Check prices

Comfort

8.3

Crew

8.7

Entertainment

8.2

Boarding

8.5

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.
Thai Vietjet Air
6.7
Okay
125 reviews
Korean Air
8.4
Very Good
1,221 reviews
Check prices

Comfort

8.3

Crew

8.7

Entertainment

8.2

Boarding

8.5

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.

Related info for your journey

Find useful and relevant information for your journey from Thailand to Seoul. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Thailand to Seoul?

    Departing from Thailand to Seoul will take you 6h 20m. There are 4316 km between Thailand and Seoul. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines to fly from Thailand to Seoul one-way?

    ฿2,165 is the cheapest one-way deal found within the past few days, from Thai Vietjet Air. You may also be able to find cheap deals on Thai AirAsia X and T'way Air, with prices starting from ฿2,954 and ฿3,614, respectively.

  • What are the most popular routes from Thailand to Seoul?

    While some choose either Bangkok Suvarnabhumi - Seoul Gimpo Intl or Bangkok Don Mueang Intl - Incheon Intl, Bangkok Suvarnabhumi - Incheon Intl is the most popular route from Thailand to Seoul.

  • What are the most reliable airlines from Thailand to Seoul?

    No one likes to see their flight delayed. When booking a flight from Thailand to Seoul consider choosing Thai Vietjet Air(97%), Jeju Air(89%) or EL AL(89%), as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Thailand to Seoul?

    The cheapest flight price from Thailand to Seoul is ฿4,694. On average you can expect to pay ฿54,388. The most popular route, (Bangkok Suvarnabhumi - Incheon Intl), can usually be booked for ฿8,085.

  • Can I find deals for flights from Thailand to Seoul that include hotel bookings?

    Yes. In addition to deals on Thailand to Seoul flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Thailand to Seoul?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Thailand to Seoul.

  • Can I find deals for business class flights from Thailand to Seoul?

    Yes. Cheapflights offers flight deals from Thailand to Seoul 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 Thailand to Seoul?

    Currently, September is the cheapest month in which you can book a flight from Thailand to Seoul (average of ฿1,664). Flying from Thailand to Seoul in December is currently the most expensive (average of ฿19,065). 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.

Alternative routes for Thailand to Seoul

See prices for flight routes from nearby airports that may be better suited for you.
Chiang Mai to Incheon Intl flights
Phuket City to Incheon Intl flights
Chiang Mai to Busan flights

Top 10 airlines flying from Thailand to Seoul

Discover the top 10 airlines that operate flights from Thailand to Seoul. 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 17,341 searches. Data last updated 7 July 2026.
AirlineCheapestAverageFlexibilityOn-time
T'way AirCheapest฿2,218Average฿9,087FlexibilityNo cancel feeOn-time88%
Search T'way Air flights
Jeju AirCheapest฿2,909Average฿8,846FlexibilityNo cancel feeOn-timeN/A
Search Jeju Air flights
Eastar JetCheapest฿3,332Average฿10,827FlexibilityNo cancel feeOn-time86%
Search Eastar Jet flights
Thai AirAsia XCheapest฿3,744Average฿7,770FlexibilityNo cancel feeOn-timeN/A
Search Thai AirAsia X flights
Thai Vietjet AirCheapest฿3,761Average฿8,603FlexibilityNo cancel feeOn-timeN/A
Search Thai Vietjet Air flights
Thai AirAsiaCheapest฿4,879Average฿10,295FlexibilityNo cancel feeOn-time87%
Search Thai AirAsia flights
Thai Lion AirCheapest฿5,697Average฿10,127FlexibilityNo cancel feeOn-timeN/A
Search Thai Lion Air flights
Vietnam AirlinesCheapest฿5,729Average฿8,316FlexibilityNo cancel feeOn-time81%
Search Vietnam Airlines flights
AIR PREMIACheapest฿6,052Average฿11,862FlexibilityNo cancel feeOn-timeN/A
Search AIR PREMIA flights
Air BusanCheapest฿7,129Average฿9,697FlexibilityNo cancel feeOn-time94%
Search Air Busan 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 Thailand to Seoul?

Cheapflights helps you search for flights from Thailand to Seoul via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Thailand to Seoul?

Cheapflights simply makes it quick and affordable to book flights from Thailand to Seoul by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Thailand to Seoul with no change fees?

Yes! Cheapflights helps users easily find flights from Thailand to Seoul with no change fees.

Can Cheapflights notify me if prices for flights from Thailand to Seoul become cheaper?

Not ready to book yet? You can track prices for flights from Thailand to Seoul on Cheapflights with our Price Alert feature and get notified when better prices are available.

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