Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Thailand to Seoul from ฿4,057

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 25/8. Fares are subject to change and may not be available on all flights or dates of travel.
BKK — SEL
19 Apr — 26 Apr1
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 20 March 2026.

Sat 9/500:50
CNX
-
ICN
Nonstop5h 25m
Multiple Airlines
Thu 14/512:05
ICN
-
CNX
1 stop9h 20m
Multiple Airlines
Deal found 20/3฿6,347
Wed 15/702:25
BKK
-
ICN
Nonstop5h 35m
Thai Vietjet Air
Fri 21/812:10
ICN
-
BKK
Nonstop5h 50m
Thai Vietjet Air
Deal found 18/3฿6,609
Thu 7/522:55
CNX
-
ICN
1 stop9h 40m
Thai AirAsia
Wed 13/512:05
ICN
-
CNX
1 stop9h 20m
Thai AirAsia
Deal found 18/3฿6,609
Tue 14/702:25
BKK
-
ICN
Nonstop5h 35m
Thai Vietjet Air
Wed 19/812:10
ICN
-
BKK
Nonstop5h 50m
Thai Vietjet Air
Deal found 18/3฿6,641
Fri 22/502:25
BKK
-
ICN
Nonstop5h 35m
Multiple Airlines
Wed 27/516:45
ICN
-
BKK
1 stop11h 05m
Multiple Airlines
Deal found 17/3฿6,739
Sat 2/500:50
CNX
-
ICN
Nonstop5h 25m
Air Busan
Sun 10/519:55
ICN
-
CNX
Nonstop5h 55m
Air Busan
Deal found 19/3฿6,838
Fri 22/502:25
BKK
-
ICN
Nonstop5h 35m
Multiple Airlines
Mon 25/518:05
ICN
-
BKK
1 stop22h 40m
Multiple Airlines
Deal found 16/3฿6,870
Thu 2/702:25
BKK
-
ICN
Nonstop5h 35m
Thai Vietjet Air
Sun 19/712:10
ICN
-
BKK
Nonstop5h 50m
Thai Vietjet Air
Deal found 16/3฿6,903
Mon 13/702:25
BKK
-
ICN
Nonstop5h 35m
Thai Vietjet Air
Sun 19/712:10
ICN
-
BKK
Nonstop5h 50m
Thai Vietjet Air
Deal found 17/3฿7,001
Sat 13/602:50
BKK
-
ICN
1 stop9h 40m
Multiple Airlines
Sun 21/617:15
ICN
-
BKK
Nonstop5h 55m
Multiple Airlines
Deal found 20/3฿7,067
Wed 6/523:30
CNX
-
ICN
1 stop9h 05m
Thai AirAsia
Wed 13/512:05
ICN
-
CNX
1 stop9h 20m
Thai AirAsia
Deal found 16/3฿7,067
Sun 31/502:50
BKK
-
ICN
1 stop10h 55m
Multiple Airlines
Sun 5/712:10
ICN
-
BKK
Nonstop5h 50m
Multiple Airlines
Deal found 19/3฿7,099

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 20 March 2026.

Round-trip from

฿6,347

One-way from

฿4,057

Popular in

December

Cheapest in

September

Average price

฿7,917

Good round-trip deal

฿7,097 or less

Good one-way deal

฿4,893 or less
Thai AirAsia
  • Thai AirAsia
  • 9/5-14/5
  • 1 total stop
  • 14h 45m total
  • Thailand to Seoul
Search Deals
Thai Lion Air
  • Thai Lion Air
  • 25/8
  • Nonstop
  • 5h 40m total
  • Thailand to Seoul
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (฿35,220 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿7,998 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 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 20 March 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
Fastest return journey

BangkokIncheon

DMK - ICN

DMKICN

Bangkok Don Mueang Intl

Wed 1/7

03:15-10:55

Nonstop5h 40m

Incheon Intl

Sun 5/7

13:30-17:10

Nonstop5h 40m

฿8,310

BangkokIncheon

DMK - ICN

DMKICN

Bangkok Don Mueang Intl

Sun 9/8

03:15-10:55

Nonstop5h 40m

Incheon Intl

Sat 15/8

12:05-15:50

Nonstop5h 45m

฿8,604

BangkokIncheon

DMK - ICN

DMKICN

Bangkok Don Mueang Intl

Wed 19/8

03:15-10:55

Nonstop5h 40m

Incheon Intl

Fri 21/8

13:30-17:10

Nonstop5h 40m

฿8,801

BangkokIncheon

DMK - ICN

DMKICN

Bangkok Don Mueang Intl

Sat 29/8

18:25-05:30

1 stop9h 05m

Incheon Intl

Sat 12/9

13:30-17:10

Nonstop5h 40m

฿9,422

BangkokIncheon

BKK - ICN

BKKICN

Bangkok Suvarnabhumi

Fri 8/5

15:55-05:50

1 stop11h 55m

Incheon Intl

Mon 18/5

10:05-21:05

1 stop13h 00m

฿9,815

BangkokIncheon

DMK - ICN

DMKICN

Bangkok Don Mueang Intl

Wed 22/7

03:15-10:55

Nonstop5h 40m

Incheon Intl

Sun 26/7

13:30-17:10

Nonstop5h 40m

฿9,913

Phuket CityIncheon

HKT - ICN

HKTICN

Phuket City

Thu 2/7

08:50-10:55

1 stop24h 05m

Incheon Intl

Sun 5/7

13:30-20:55

1 stop9h 25m

฿10,600

BangkokIncheon

DMK - ICN

DMKICN

Bangkok Don Mueang Intl

Wed 2/9

03:15-10:55

Nonstop5h 40m

Incheon Intl

Sat 5/9

13:30-17:10

Nonstop5h 40m

฿10,665

Chiang MaiIncheon

CNX - ICN

CNXICN

Chiang Mai

Wed 22/4

23:30-10:35

1 stop9h 05m

Incheon Intl

Sat 25/4

08:15-20:05

2 stops13h 50m

฿10,894

BangkokIncheon

BKK - ICN

BKKICN

Bangkok Suvarnabhumi

Mon 18/5

15:55-10:55

2 stops17h 00m

Incheon Intl

Tue 19/5

16:35-12:20

2 stops21h 45m

฿11,025

Flights are sorted by cheapest return flights first.

Deals found on 15/3

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

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, February is the cheapest month in which you can book a flight from Thailand to Seoul (average of ฿2,879). Flying from Thailand to Seoul in November is currently the most expensive (average of ฿5,202). 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 20 March 2026.

When flying from Thailand to Seoul, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 69% versus a flight at midday.

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 20 March 2026.

The most flights from TH0 to SEL are scheduled on a Wednesday (44 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (41 on average).

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 20 March 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
1,205 reviews
Check prices

Crew

8.7

Boarding

8.5

Comfort

8.3

Overall

8.4

Entertainment

8.2

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
1,205 reviews
Korean Air
8.4
Very Good
1,205 reviews
Check prices

Crew

8.7

Boarding

8.5

Comfort

8.3

Overall

8.4

Entertainment

8.2

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 PREMIA
8.2
Very Good
Korean Air
8.4
Very Good
1,205 reviews
Check prices

Crew

8.7

Boarding

8.5

Comfort

8.3

Overall

8.4

Entertainment

8.2

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.
Thai Airways
7.8
Good
394 reviews
Korean Air
8.4
Very Good
1,205 reviews
Check prices

Crew

8.7

Boarding

8.5

Comfort

8.3

Overall

8.4

Entertainment

8.2

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.
Thai Vietjet Air
6.6
Okay
119 reviews
Korean Air
8.4
Very Good
1,205 reviews
Check prices

Crew

8.7

Boarding

8.5

Comfort

8.3

Overall

8.4

Entertainment

8.2

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.

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 40m. There are 3655 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?

    ฿2,071 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 ฿2,746 and ฿3,707, 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 Eastar Jet(100%), EL AL(98%) or Air Busan(97%), 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 ฿5,517. On average you can expect to pay ฿29,978. The most popular route, (Bangkok Suvarnabhumi - Incheon Intl), can usually be booked for ฿6,641.

  • 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, February is the cheapest month in which you can book a flight from Thailand to Seoul (average of ฿2,879). Flying from Thailand to Seoul in November is currently the most expensive (average of ฿5,202). 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 20 March 2026.
AirlineCheapestAverageFlexibilityOn-time
T'way AirCheapest฿2,181Average฿7,592FlexibilityNo cancel feeOn-time88%
Search T'way Air flights
Vietnam AirlinesCheapest฿2,676Average฿8,333FlexibilityNo cancel feeOn-time81%
Search Vietnam Airlines flights
Jin AirCheapest฿2,819Average฿8,576FlexibilityNo cancel feeOn-time78%
Search Jin Air flights
Jeju AirCheapest฿2,860Average฿8,838FlexibilityNo cancel feeOn-timeN/A
Search Jeju Air flights
Eastar JetCheapest฿3,276Average฿11,006FlexibilityNo cancel feeOn-time86%
Search Eastar Jet flights
Thai AirAsia XCheapest฿3,555Average฿7,617FlexibilityNo cancel feeOn-timeN/A
Search Thai AirAsia X flights
Thai Vietjet AirCheapest฿3,698Average฿7,648FlexibilityNo cancel feeOn-timeN/A
Search Thai Vietjet Air flights
AIR PREMIACheapest฿4,112Average฿11,140FlexibilityNo cancel feeOn-timeN/A
Search AIR PREMIA flights
Asiana AirlinesCheapest฿6,126Average฿14,333FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
Korean AirCheapest฿6,247Average฿17,451FlexibilityNo cancel feeOn-time81%
Search Korean Air 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book With Flexibility

Our users can plan ahead with confidence and find flights with no change fees.

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.