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Cheap flights from Thailand to Seoul from ฿3,864

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 8/11. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — SEL
18 Aug — 25 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 19 July 2026.

Sun 13/923:55
CNX
-
ICN
Nonstop5h 15m
Eastar Jet
Thu 17/918:30
ICN
-
CNX
Nonstop6h 10m
Eastar Jet
Deal found 15/7฿8,265
Sun 6/923:00
CNX
-
ICN
Nonstop5h 30m
Jeju Air
Wed 9/918:10
ICN
-
CNX
Nonstop5h 50m
Jeju Air
Deal found 16/7฿8,299
Sat 19/923:00
CNX
-
ICN
Nonstop5h 30m
Jeju Air
Sat 24/1018:10
ICN
-
CNX
Nonstop5h 50m
Jeju Air
Deal found 18/7฿8,702
Wed 16/921:45
CNX
-
ICN
Nonstop5h 20m
Multiple Airlines
Sun 20/919:55
ICN
-
CNX
Nonstop5h 55m
Multiple Airlines
Deal found 18/7฿8,769
Thu 3/921:45
CNX
-
ICN
Nonstop5h 20m
Multiple Airlines
Sun 6/918:10
ICN
-
CNX
Nonstop5h 50m
Multiple Airlines
Deal found 16/7฿8,836
Thu 3/900:50
CNX
-
ICN
Nonstop5h 25m
Air Busan
Wed 9/919:55
ICN
-
CNX
Nonstop5h 55m
Air Busan
Deal found 15/7฿8,903
Thu 8/1015:55
BKK
-
ICN
1 stop11h 55m
Vietnam Airlines
Wed 14/1010:35
ICN
-
BKK
1 stop11h 25m
Vietnam Airlines
Deal found 15/7฿9,071
Tue 8/1214:20
BKK
-
ICN
1 stop24h 05m
Vietnam Airlines
Sun 13/1218:05
ICN
-
BKK
1 stop28h 55m
Vietnam Airlines
Deal found 16/7฿9,105
Sun 2/800:05
BKK
-
ICN
Nonstop5h 35m
Multiple Airlines
Mon 17/811:00
ICN
-
BKK
1 stop32h 50m
Multiple Airlines
Deal found 15/7฿9,139
Tue 15/921:45
CNX
-
ICN
Nonstop5h 20m
Multiple Airlines
Sat 19/918:30
ICN
-
CNX
Nonstop6h 10m
Multiple Airlines
Deal found 17/7฿9,139
Fri 14/819:20
BKK
-
ICN
1 stop23h 05m
Multiple Airlines
Mon 17/818:00
ICN
-
BKK
Nonstop6h 05m
Multiple Airlines
Deal found 19/7฿9,172
Thu 3/921:00
BKK
-
ICN
1 stop17h 25m
Multiple Airlines
Mon 21/917:15
ICN
-
BKK
Nonstop5h 55m
Multiple Airlines
Deal found 14/7฿9,206

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 19 July 2026.

Round-trip from

฿8,265

One-way from

฿3,864

Popular in

December

Cheapest in

March

Average price

฿10,785

Good round-trip deal

฿12,190 or less

Good one-way deal

฿5,215 or less
Eastar Jet
  • Eastar Jet
  • 13/9-17/9
  • Nonstop
  • 11h 25m total
  • Thailand to Seoul
Search Deals
Eastar Jet
  • Eastar Jet
  • 3/11
  • Nonstop
  • 5h 10m total
  • Thailand to Seoul
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (฿7,031 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (฿5,635 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 19 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 4/9

21:45-05:05

Nonstop5h 20m

Incheon Intl

Mon 7/9

17:20-20:45

Nonstop5h 25m

฿9,239

Chiang MaiIncheon

CNX - ICN

CNXICN

Chiang Mai

Tue 1/12

22:20-05:30

Nonstop5h 10m

Incheon Intl

Sat 5/12

17:25-21:20

Nonstop5h 55m

฿9,609

BangkokIncheon

BKK - ICN

BKKICN

Bangkok Suvarnabhumi

Sat 7/11

15:55-05:30

1 stop11h 35m

Incheon Intl

Tue 10/11

10:35-17:55

1 stop9h 20m

฿9,878

Chiang MaiIncheon

CNX - ICN

CNXICN

Chiang Mai

Thu 3/9

21:45-05:05

Nonstop5h 20m

Incheon Intl

Sun 6/9

17:20-20:45

Nonstop5h 25m

฿9,911

Phuket CityIncheon

HKT - ICN

HKTICN

Phuket City

Tue 8/9

22:45-07:05

Nonstop6h 20m

Incheon Intl

Tue 15/9

17:20-21:35

Nonstop6h 15m

฿10,180

Phuket CityIncheon

HKT - ICN

HKTICN

Phuket City

Tue 8/9

18:45-16:25

1 stop19h 40m

Incheon Intl

Thu 10/9

10:35-17:50

1 stop9h 15m

฿10,617

Phuket CityIncheon

HKT - ICN

HKTICN

Phuket City

Tue 1/9

22:45-07:05

Nonstop6h 20m

Incheon Intl

Tue 8/9

10:35-17:50

1 stop9h 15m

฿11,020

Phuket CityIncheon

HKT - ICN

HKTICN

Phuket City

Tue 8/9

22:45-07:05

Nonstop6h 20m

Incheon Intl

Tue 15/9

10:35-17:50

1 stop9h 15m

฿11,188

Phuket CityIncheon

HKT - ICN

HKTICN

Phuket City

Sun 9/8

22:00-10:00

1 stop10h 00m

Incheon Intl

Thu 13/8

18:00-08:25

1 stop16h 25m

฿11,390

BangkokIncheon

BKK - ICN

BKKICN

Bangkok Suvarnabhumi

Mon 3/8

22:15-16:35

1 stop16h 20m

Incheon Intl

Fri 14/8

10:05-21:05

1 stop13h 00m

฿11,894

Flights are sorted by cheapest return flights first.

Deals found on 19/7

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 ฿8,366). Flying from Thailand to Seoul in December is currently the most expensive (average of ฿12,230). 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 19 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 19 July 2026.

The most flights from TH0 to SEL are scheduled on a Friday (38 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (30 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 19 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

Food

8.1

Entertainment

8.2

Comfort

8.3

Boarding

8.5

Overall

8.4

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

Food

8.1

Entertainment

8.2

Comfort

8.3

Boarding

8.5

Overall

8.4

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

Food

8.1

Entertainment

8.2

Comfort

8.3

Boarding

8.5

Overall

8.4

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

Food

8.1

Entertainment

8.2

Comfort

8.3

Boarding

8.5

Overall

8.4

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

Food

8.1

Entertainment

8.2

Comfort

8.3

Boarding

8.5

Overall

8.4

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 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 5h 15m. There are 3378 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?

    ฿2,187 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 ฿2,982 and ฿3,650, respectively.

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

    While some choose either Bangkok Don Mueang Intl - Incheon Intl or Bangkok Suvarnabhumi - Seoul Gimpo 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(91%) or EL AL(87%), 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 ฿4,740. On average you can expect to pay ฿54,149. The most popular route, (Bangkok Suvarnabhumi - Incheon Intl), can usually be booked for ฿8,299.

  • 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 ฿8,366). Flying from Thailand to Seoul in December is currently the most expensive (average of ฿12,230). 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 19 July 2026.
AirlineCheapestAverageFlexibilityOn-time
T'way AirCheapest฿2,240Average฿9,917FlexibilityNo cancel feeOn-time88%
Search T'way Air flights
Jeju AirCheapest฿2,937Average฿8,933FlexibilityNo cancel feeOn-timeN/A
Search Jeju Air flights
Eastar JetCheapest฿3,364Average฿11,019FlexibilityNo cancel feeOn-time86%
Search Eastar Jet flights
Thai AirAsia XCheapest฿3,781Average฿7,839FlexibilityNo cancel feeOn-timeN/A
Search Thai AirAsia X flights
Thai Vietjet AirCheapest฿3,798Average฿8,755FlexibilityNo cancel feeOn-timeN/A
Search Thai Vietjet Air flights
Thai AirAsiaCheapest฿4,927Average฿10,396FlexibilityNo cancel feeOn-time87%
Search Thai AirAsia flights
Thai Lion AirCheapest฿5,753Average฿10,226FlexibilityNo cancel feeOn-timeN/A
Search Thai Lion Air flights
Vietnam AirlinesCheapest฿6,072Average฿8,849FlexibilityNo cancel feeOn-time81%
Search Vietnam Airlines flights
AIR PREMIACheapest฿6,279Average฿11,979FlexibilityNo cancel feeOn-timeN/A
Search AIR PREMIA flights
Air BusanCheapest฿7,198Average฿9,792FlexibilityNo 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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