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Cheap flights from Seoul to Bangkok from ฿3,133

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 19/8. Fares are subject to change and may not be available on all flights or dates of travel.
SEL — BKK
17 May — 24 May1
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 Friday and return on a Friday

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 17 April 2026.

Wed 10/608:15
ICN
-
BKK
2 stops12h 35m
Multiple Airlines
Thu 25/601:10
BKK
-
ICN
Nonstop5h 45m
Multiple Airlines
Deal found 12/4฿5,690
Thu 28/519:55
ICN
-
BKK
1 stop14h 00m
Multiple Airlines
Sun 31/501:10
BKK
-
ICN
Nonstop5h 45m
Multiple Airlines
Deal found 16/4฿5,850
Mon 25/517:15
ICN
-
BKK
Nonstop5h 55m
Multiple Airlines
Sun 7/601:10
BKK
-
ICN
Nonstop5h 45m
Multiple Airlines
Deal found 12/4฿6,010
Sat 30/520:05
ICN
-
BKK
Nonstop6h 05m
Jeju Air
Sun 31/501:10
BKK
-
ICN
Nonstop5h 45m
Jeju Air
Deal found 16/4฿6,298
Mon 22/617:15
ICN
-
BKK
Nonstop5h 55m
Multiple Airlines
Sun 28/601:10
BKK
-
ICN
Nonstop5h 45m
Multiple Airlines
Deal found 14/4฿6,330
Tue 23/608:15
ICN
-
BKK
2 stops15h 50m
Multiple Airlines
Thu 25/601:10
BKK
-
ICN
Nonstop5h 45m
Multiple Airlines
Deal found 12/4฿6,394
Wed 27/519:55
ICN
-
BKK
1 stop14h 00m
Multiple Airlines
Sun 31/501:10
BKK
-
ICN
Nonstop5h 45m
Multiple Airlines
Deal found 17/4฿6,489
Thu 28/519:55
ICN
-
BKK
1 stop14h 00m
Multiple Airlines
Thu 4/601:10
BKK
-
ICN
Nonstop5h 45m
Multiple Airlines
Deal found 14/4฿6,521
Sun 28/608:15
ICN
-
BKK
2 stops15h 50m
Multiple Airlines
Thu 2/701:10
BKK
-
ICN
Nonstop5h 45m
Multiple Airlines
Deal found 12/4฿6,553
Thu 18/608:15
ICN
-
BKK
2 stops15h 50m
Multiple Airlines
Thu 25/601:10
BKK
-
ICN
Nonstop5h 45m
Multiple Airlines
Deal found 13/4฿6,585
Thu 18/608:15
ICN
-
BKK
2 stops15h 50m
Multiple Airlines
Thu 9/701:10
BKK
-
ICN
Nonstop5h 45m
Multiple Airlines
Deal found 15/4฿6,617
Thu 21/514:20
GMP
-
BKK
1 stop11h 30m
Multiple Airlines
Wed 3/600:50
BKK
-
GMP
1 stop9h 05m
Multiple Airlines
Deal found 15/4฿7,512

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 17 April 2026.

Round-trip from

฿5,690

One-way from

฿3,133

Popular in

January

Cheapest in

September

Average price

฿9,079
Jeju Air
  • Jeju Air
  • 10/6-25/6
  • 2 total stops
  • 18h 20m total
  • Seoul to Bangkok
Search Deals
Thai Lion Air
  • Thai Lion Air
  • 19/8
  • Nonstop
  • 5h 40m total
  • Seoul to Bangkok
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (฿56,010 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿6,071 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 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 17 April 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

Cheapest return flight
Fastest return journey

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Sun 3/5

17:15-21:10

Nonstop5h 55m

Bangkok Suvarnabhumi

Sun 10/5

22:45-06:15

Nonstop5h 30m

฿8,727

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Mon 8/6

17:15-21:10

Nonstop5h 55m

Bangkok Suvarnabhumi

Thu 11/6

22:45-06:15

Nonstop5h 30m

฿8,951

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Fri 12/6

17:15-21:10

Nonstop5h 55m

Bangkok Suvarnabhumi

Sun 21/6

22:45-06:15

Nonstop5h 30m

฿9,111

IncheonBangkok

ICN - DMK

ICNDMK

Incheon Intl

Thu 11/6

12:05-15:50

Nonstop5h 45m

Bangkok Don Mueang Intl

Sun 21/6

02:45-10:35

Nonstop5h 50m

฿9,175

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Mon 11/5

17:15-21:10

Nonstop5h 55m

Bangkok Suvarnabhumi

Sun 17/5

22:45-06:15

Nonstop5h 30m

฿9,303

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Tue 9/6

17:15-21:10

Nonstop5h 55m

Bangkok Suvarnabhumi

Tue 16/6

22:45-06:15

Nonstop5h 30m

฿9,399

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Mon 29/6

19:55-23:45

Nonstop5h 50m

Bangkok Suvarnabhumi

Wed 1/7

00:45-08:25

Nonstop5h 40m

฿9,782

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Tue 19/5

17:15-21:10

Nonstop5h 55m

Bangkok Suvarnabhumi

Thu 4/6

22:45-06:15

Nonstop5h 30m

฿9,814

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Sun 3/5

17:15-21:10

Nonstop5h 55m

Bangkok Suvarnabhumi

Fri 22/5

22:45-06:15

Nonstop5h 30m

฿10,230

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Fri 15/5

17:15-21:10

Nonstop5h 55m

Bangkok Suvarnabhumi

Mon 18/5

22:45-06:15

Nonstop5h 30m

฿10,230

Flights are sorted by cheapest return flights first.

Deals found on 14/4

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

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

Currently, September is the cheapest month in which you can book a flight from Seoul to Bangkok (average of ฿4,987). Flying from Seoul to Bangkok in January is currently the most expensive (average of ฿9,399). 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 17 April 2026.

A simple way to save on the total cost of your ticket is to fly from Seoul to Bangkok at midday. If you’re flexible enough to do this you can expect to save up to 65% on your trip compared to booking a flight in the evening.

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 17 April 2026.

The most flights from SEL to TH1 are scheduled on a Friday (35 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (31 on average).

How much does it cost for a return flight from Seoul to Bangkok?

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 17 April 2026.
Read through reviews of airlines operating flights from Seoul to Bangkok, such as AIR PREMIA. 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

Boarding

8.1

Comfort

8.2

Entertainment

7.0

Crew

8.9

Food

7.2

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

Boarding

8.1

Comfort

8.2

Entertainment

7.0

Crew

8.9

Food

7.2

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 AIR PREMIA, Thai AirAsia, or Jeju 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 is the cheapest airline to fly from Seoul to Bangkok round-trip?

    Flying on AIR PREMIA is currently your cheapest option to Bangkok, with prices starting at ฿2,688. This flight start at 64% 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 Thai Vietjet Air (฿1,874), Thai AirAsia X (฿1,950), and T'way Air (฿2,018).

  • 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 Eastar Jet (95%), Air Busan (95%) or คูเวตแอร์เวย์ (95%) 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 ฿4,307, our data indicates the cheapest price to be ฿2,232. The most popular route (Incheon Intl - Bangkok Suvarnabhumi), is priced around ฿8,727.

  • 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, September is the cheapest month in which you can book a flight from Seoul to Bangkok (average of ฿4,987). Flying from Seoul to Bangkok in January is currently the most expensive (average of ฿9,399). 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 airline flying from Seoul to Bangkok

Discover the top airline 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 17 April 2026.
AirlineCheapestAverageFlexibilityOn-time
AIR PREMIACheapest฿2,688Average฿9,051FlexibilityNo cancel feeOn-timeN/A
Search AIR PREMIA 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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