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Cheap flights from Seoul to Bangkok from ฿2,173

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 10/8. Fares are subject to change and may not be available on all flights or dates of travel.
SEL — BKK
28 Mar — 4 Apr1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Seoul to Bangkok are usually found in September or June, booked 49 days in advance, depart on a Sunday or Thursday and return on a Tuesday

Cheap flight deals from Seoul to Bangkok

Enter your travel dates to find the best prices.

Cheapest flights from Seoul to Bangkok
Explore the most affordable flight options available from Seoul to Bangkok. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 26 February 2026.

Thu 23/418:05
ICN
-
BKK
1 stop29h 00m
Vietnam Airlines
Sun 26/411:55
BKK
-
ICN
1 stop26h 40m
Vietnam Airlines
Deal found 26/2฿4,532
Fri 24/410:05
ICN
-
BKK
1 stop10h 00m
Vietnam Airlines
Fri 15/515:55
BKK
-
ICN
1 stop11h 55m
Vietnam Airlines
Deal found 23/2฿4,563
Mon 29/611:05
ICN
-
BKK
1 stop8h 00m
Vietnam Airlines
Fri 10/719:05
BKK
-
ICN
1 stop8h 45m
Vietnam Airlines
Deal found 24/2฿4,595
Tue 30/611:05
ICN
-
BKK
1 stop8h 00m
Vietnam Airlines
Tue 7/719:05
BKK
-
ICN
1 stop8h 45m
Vietnam Airlines
Deal found 23/2฿4,626
Thu 10/912:05
ICN
-
DMK
Nonstop5h 45m
Thai AirAsia
Sun 13/902:45
DMK
-
ICN
Nonstop5h 50m
Thai AirAsia
Deal found 24/2฿4,626
Sat 27/610:05
ICN
-
BKK
1 stop13h 00m
Vietnam Airlines
Sat 4/719:05
BKK
-
ICN
1 stop8h 45m
Vietnam Airlines
Deal found 26/2฿4,657
Sat 22/812:05
ICN
-
DMK
Nonstop5h 45m
Thai AirAsia
Mon 24/802:45
DMK
-
ICN
Nonstop5h 50m
Thai AirAsia
Deal found 26/2฿4,657
Fri 19/611:05
ICN
-
BKK
1 stop8h 00m
Vietnam Airlines
Wed 24/619:05
BKK
-
ICN
1 stop8h 45m
Vietnam Airlines
Deal found 24/2฿4,688
Thu 2/712:05
ICN
-
DMK
Nonstop5h 45m
Thai AirAsia
Tue 7/702:45
DMK
-
ICN
Nonstop5h 50m
Thai AirAsia
Deal found 24/2฿4,688
Tue 2/610:05
ICN
-
BKK
1 stop13h 00m
Vietnam Airlines
Mon 8/619:05
BKK
-
ICN
1 stop19h 30m
Vietnam Airlines
Deal found 25/2฿4,719
Sat 9/510:05
ICN
-
BKK
1 stop13h 00m
Vietnam Airlines
Fri 15/515:55
BKK
-
ICN
1 stop11h 55m
Vietnam Airlines
Deal found 24/2฿4,750
Fri 19/612:05
ICN
-
DMK
Nonstop5h 45m
Thai AirAsia
Thu 2/702:45
DMK
-
ICN
Nonstop5h 50m
Thai AirAsia
Deal found 24/2฿4,750

Find flight deals from Seoul to Bangkok

Discover tips and strategies to find the most affordable flight options for your journey from Seoul (SEL) to Bangkok (TH1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 26 February 2026.

Round-trip from

฿4,532

One-way from

฿2,173

Popular in

January

Cheapest in

September

Average price

฿8,723
Vietnam Airlines
  • Vietnam Airlines
  • 23/4-26/4
  • 2 total stops
  • 55h 40m total
  • Seoul to Bangkok
Search Deals
Thai AirAsia
  • Thai AirAsia
  • 10/8
  • Nonstop
  • 5h 45m total
  • Seoul to Bangkok
Search Deals
Highest demand for flights based on searches. 20% potential increase in price (฿57,171 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿6,034 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Seoul to Bangkok 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 26 February 2026.
Use the filters below to find and compare flights from Seoul to Bangkok that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Sun 10/5

18:05-14:45

1 stop22h 40m

Bangkok Suvarnabhumi

Wed 13/5

18:05-06:00

1 stop9h 55m

฿5,495

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Mon 15/6

10:05-18:05

1 stop10h 00m

Bangkok Suvarnabhumi

Mon 22/6

19:05-05:50

1 stop8h 45m

฿5,495

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Wed 24/6

10:05-21:05

1 stop13h 00m

Bangkok Suvarnabhumi

Sun 5/7

15:55-05:50

1 stop11h 55m

฿5,495

IncheonBangkok

ICN - DMK

ICNDMK

Incheon Intl

Sun 5/7

12:05-15:50

Nonstop5h 45m

Bangkok Don Mueang Intl

Fri 10/7

02:45-10:35

Nonstop5h 50m

฿5,712

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Sat 25/4

18:05-10:50

1 stop18h 45m

Bangkok Suvarnabhumi

Sat 9/5

19:05-05:50

1 stop8h 45m

฿5,774

IncheonBangkok

ICN - DMK

ICNDMK

Incheon Intl

Thu 12/3

11:20-15:30

Nonstop6h 10m

Bangkok Don Mueang Intl

Sat 14/3

02:30-10:05

Nonstop5h 35m

฿5,898

IncheonBangkok

ICN - DMK

ICNDMK

Incheon Intl

Tue 2/6

12:05-15:50

Nonstop5h 45m

Bangkok Don Mueang Intl

Sun 7/6

02:45-10:35

Nonstop5h 50m

฿5,898

IncheonBangkok

ICN - DMK

ICNDMK

Incheon Intl

Fri 17/7

12:05-15:50

Nonstop5h 45m

Bangkok Don Mueang Intl

Fri 24/7

02:45-10:35

Nonstop5h 50m

฿5,898

IncheonBangkok

ICN - DMK

ICNDMK

Incheon Intl

Fri 26/6

12:05-15:50

Nonstop5h 45m

Bangkok Don Mueang Intl

Sat 27/6

02:45-10:35

Nonstop5h 50m

฿5,898

IncheonBangkok

ICN - DMK

ICNDMK

Incheon Intl

Wed 12/8

12:05-15:50

Nonstop5h 45m

Bangkok Don Mueang Intl

Wed 19/8

02:45-10:35

Nonstop5h 50m

฿5,898

Flights are sorted by cheapest return flights first.

Deals found on 22/2

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

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

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

Use this chart to determine the optimal time to book a return flight from Seoul to Bangkok. Price data was last updated on 20 February 2026.

To ensure you get the cheapest price possible for a flight from Seoul to Bangkok, you should look to book at least 49 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, November is the cheapest month in which you can book a flight from Seoul to Bangkok (average of ฿2,980). Flying from Seoul to Bangkok in February is currently the most expensive (average of ฿4,657). 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 SEL to BKK?

Find hourly flight availability from Seoul to Bangkok. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 26 February 2026.

When flying from Seoul to Bangkok, 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 Seoul to Bangkok

Explore weekly flight availability from Seoul to Bangkok. 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 26 February 2026.

The most flights from SEL to TH1 are scheduled on a Tuesday (46 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (29 on average).

Reviews of airlines servicing Bangkok

Get insights into the airlines that provide service to Bangkok. 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 Bangkok. Reviews last updated 26 February 2026.
Read through reviews of airlines operating flights from Seoul to Bangkok, such as AIR PREMIA and Thai Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
AIR PREMIA
8.2
Very Good
Check prices

Entertainment

7.0

Food

7.3

Boarding

8.1

Crew

8.9

Comfort

8.3

Overall

8.2

Reviews

1 / 8
10.0
Excellent

Anonymous,Jan 2026

EWR - ICN

Extremely excellent. It is now my airline of choice! Fantastic airline!
AIR PREMIA
8.2
Very Good
AIR PREMIA
8.2
Very Good
Check prices

Entertainment

7.0

Food

7.3

Boarding

8.1

Crew

8.9

Comfort

8.3

Overall

8.2

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
386 reviews
AIR PREMIA
8.2
Very Good
Check prices

Entertainment

7.0

Food

7.3

Boarding

8.1

Crew

8.9

Comfort

8.3

Overall

8.2

Reviews

1 / 8
10.0
Excellent

Anonymous,Jan 2026

EWR - ICN

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

Related info for your journey

Find useful and relevant information for your journey from Seoul to Bangkok. 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 Seoul to Bangkok?

    There are many flights that can get you from Seoul to Bangkok in 5h 45m. Fly via Thai AirAsia, Vietnam Airlines, or T'way Air to get the fastest option. There are 3655 km between Seoul and Bangkok. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines flying from Seoul to Bangkok round-trip?

    Flying on AIR PREMIA is currently your cheapest option to Bangkok, with prices starting at ฿2,610. Additional round-trip tickets that might be worth considering are offered by Thai AirAsia X and Thai Airways, with the lowest prices starting at ฿2,783 and ฿10,138, respectively. These flights start at 63% lower than the current average price 3 months from now.

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

    The cheapet airlines for a one-way flight from Seoul to Bangkok are Jeju Air (฿1,670), Thai Vietjet Air (฿1,820), and Thai AirAsia X (฿1,894).

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

    The most popular flight routes from Seoul to Bangkok are Incheon Intl - Bangkok Suvarnabhumi, Seoul Gimpo Intl - Bangkok Suvarnabhumi and Incheon Intl - Bangkok Don Mueang Intl.

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

    Consider Air Busan (93%), AIR PREMIA (89%) or คูเวตแอร์เวย์ (83%) when booking your flight. These represent the most reliable airlines when flying from Seoul to Bangkok.

  • What are the cheapest flights from Seoul to Bangkok?

    Looking for the cheapest flight from Seoul to Bangkok? While on average our users pay ฿7,806, our data indicates the cheapest price to be ฿1,924. The most popular route (Incheon Intl - Bangkok Suvarnabhumi), is priced around ฿4,719.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Seoul to Bangkok (average of ฿2,980). Flying from Seoul to Bangkok in February is currently the most expensive (average of ฿4,657). 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 Seoul to Bangkok

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

Top 3 airlines flying from Seoul to Bangkok

Discover the top 3 airlines that operate flights from Seoul to Bangkok. 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 26 February 2026.
AirlineCheapestAverageFlexibilityOn-time
AIR PREMIACheapest฿2,610Average฿8,789FlexibilityNo cancel feeOn-timeN/A
Search AIR PREMIA flights
Thai AirAsia XCheapest฿2,783Average฿6,232FlexibilityNo cancel feeOn-timeN/A
Search Thai AirAsia X flights
Thai AirwaysCheapest฿10,138Average฿12,170FlexibilityNo cancel feeOn-time77%
Search Thai Airways 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 Seoul to Bangkok?

When you search for this flight from Seoul to Bangkok, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

Cheapflights simply makes it quick and affordable to book flights from Seoul to Bangkok 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 Seoul to Bangkok with no change fees?

Certainly. Search results for flights to Bangkok from Seoul shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Bangkok from Seoul today and book when prices fit your budget.

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