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Cheap flights from Seoul to Bangkok from ฿2,131

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 29/9. Fares are subject to change and may not be available on all flights or dates of travel.
SEL — BKK
20 Jun — 27 Jun1
1 adult

Cheapflights Tip: The best prices from Seoul to Bangkok are usually found in June or May, booked 49 days in advance, depart on a Thursday or Sunday and return on a Friday

Cheap 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 15 June 2025.

Round-trip from

฿4,003

One-way from

฿2,131

Popular in

January

Cheapest in

June

Average price

฿5,714
Vietnam Airlines
  • Vietnam Airlines
  • 22/9-24/10
  • 2 total stops
  • 32h 30m total
  • Seoul to Bangkok
Search Deals
Thai AirAsia X
  • Thai AirAsia X
  • 29/9
  • Nonstop
  • 6h 10m total
  • Seoul to Bangkok
Search Deals
Highest demand for flights based on searches. 22% potential increase in price (฿77,422 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (฿10,485 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2025
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Find flight deals from Seoul to Bangkok

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 15 June 2025.

Mon 22/910:05ICN - BKK
1 stop13h 00mVietnam Airlines
Fri 24/1019:05BKK - ICN
1 stop19h 30mVietnam Airlines
Deal found 12/6฿4,003
Sat 28/611:35ICN - DMK
Nonstop6h 10mThai AirAsia X
Sat 5/702:45DMK - ICN
Nonstop5h 35mThai AirAsia X
Deal found 13/6฿5,165
Fri 27/618:00ICN - BKK
Nonstop6h 35mT'way Air
Wed 2/700:05BKK - ICN
Nonstop5h 35mT'way Air
Deal found 14/6฿5,262
Tue 15/719:55ICN - BKK
Nonstop5h 50mJin Air
Wed 16/700:55BKK - ICN
Nonstop5h 30mJin Air
Deal found 15/6฿5,327
Mon 1/917:15ICN - BKK
Nonstop6h 05mAir Busan
Fri 12/922:20BKK - ICN
Nonstop5h 45mAir Busan
Deal found 15/6฿5,940
Thu 19/615:15ICN - BKK
1 stop22h 25mChina Southern
Sun 22/612:10BKK - ICN
1 stop23h 30mChina Southern
Deal found 15/6฿6,005
Thu 26/620:05ICN - BKK
Nonstop5h 54mJeju Air
Wed 9/701:00BKK - ICN
Nonstop5h 40mJeju Air
Deal found 15/6฿6,069
Sat 28/616:50ICN - BKK
Nonstop6h 20mAIR PREMIA
Sat 12/722:45BKK - ICN
Nonstop5h 40mAIR PREMIA
Deal found 13/6฿6,101
Wed 20/818:05ICN - BKK
1 stop18h 45mMultiple Airlines
Tue 26/802:50BKK - ICN
1 stop9h 40mMultiple Airlines
Deal found 15/6฿6,231
Mon 14/711:35ICN - DMK
Nonstop6h 10mMultiple Airlines
Fri 18/710:30DMK - ICN
1 stop17h 45mMultiple Airlines
Deal found 15/6฿6,553
Tue 1/720:30ICN - BKK
1 stop17h 45mPhilippine Airlines
Tue 15/723:20BKK - ICN
1 stop28h 40mPhilippine Airlines
Deal found 15/6฿6,586
Tue 24/618:30GMP - BKK
2 stops32h 35mMultiple Airlines
Tue 1/719:55BKK - GMP
2 stops11h 40mMultiple Airlines
Deal found 12/6฿7,005

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 15 June 2025.
Use the filters below to find and compare flights from Seoul to Bangkok that are best for you.

Fly from

Seoul

Fly to

Bangkok

Route

Depart

Return

Price

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Mon 22/9

10:05-21:05

1 stop13h 00m

Bangkok Suvarnabhumi

Fri 24/10

19:05-16:35

1 stop19h 30m

฿4,003

IncheonBangkok

ICN - DMK

ICNDMK

Incheon Intl

Sat 28/6

11:35-15:45

Nonstop6h 10m

Bangkok Don Mueang Intl

Sat 5/7

02:45-10:20

Nonstop5h 35m

฿5,165

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Fri 27/6

18:00-22:35

Nonstop6h 35m

Bangkok Suvarnabhumi

Wed 2/7

00:05-07:40

Nonstop5h 35m

฿5,262

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Tue 15/7

19:55-23:45

Nonstop5h 50m

Bangkok Suvarnabhumi

Wed 16/7

00:55-08:25

Nonstop5h 30m

฿5,327

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Mon 1/9

17:15-21:20

Nonstop6h 05m

Bangkok Suvarnabhumi

Fri 12/9

22:20-06:05

Nonstop5h 45m

฿5,940

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Thu 26/6

20:05-23:59

Nonstop5h 54m

Bangkok Suvarnabhumi

Wed 2/7

01:00-08:40

Nonstop5h 40m

฿6,069

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Sat 28/6

16:50-21:10

Nonstop6h 20m

Bangkok Suvarnabhumi

Sat 12/7

22:45-06:25

Nonstop5h 40m

฿6,101

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Sat 28/6

16:45-14:05

1 stop23h 20m

Bangkok Suvarnabhumi

Sun 6/7

12:10-13:40

1 stop23h 30m

฿6,134

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Wed 20/8

18:05-10:50

1 stop18h 45m

Bangkok Suvarnabhumi

Tue 26/8

02:50-14:30

1 stop9h 40m

฿6,231

IncheonBangkok

ICN - DMK

ICNDMK

Incheon Intl

Mon 14/7

11:35-15:45

Nonstop6h 10m

Bangkok Don Mueang Intl

Fri 18/7

10:30-06:15

1 stop17h 45m

฿6,553

Flights are sorted by cheapest return flights first.

Deals found on 12/6

Showing 1-10 of 52 results
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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 13 June 2025.

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, June is the cheapest month in which you can book a flight from Seoul to Bangkok (average of ฿57). Flying from Seoul to Bangkok in December is currently the most expensive (average of ฿79). 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 15 June 2025.

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 39% on your trip compared to booking a flight in the morning.

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 15 June 2025.

The most flights from SEL to TH1 are scheduled on a Wednesday (34 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (33 on average).

Rainfall in Bangkok by month

Plan your trip to Bangkok by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Bangkok ranges from 10.0 - 320.0 inches per month. September is typically the wettest month, when rainfall can reach 320.0 mm. January is typically the driest time to visit Bangkok when rainfall is around 10.0 mm.

Temperature in Bangkok by month

Plan your trip to Bangkok by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Bangkok, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 30.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 26.0 C).

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 15 June 2025.
To help decide which airline to fly from Seoul to Bangkok, see what other customers have to say about AIR PREMIA, Cathay Pacific and China Southern. 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.
AIR PREMIA
8.2
Very Good
Check prices

Overall

8.2

Entertainment

6.7

Food

7.2

Crew

8.8

Boarding

7.9

Comfort

8.3

Reviews

1 / 5
2.0
Mediocre

Anonymous,Aug 2024

BKK - ICN

They cancel themselves without any agreement. and they ruined my travel plan all of my next schedule.
AIR PREMIA
8.2
Very Good
AIR PREMIA
8.2
Very Good
Check prices

Overall

8.2

Entertainment

6.7

Food

7.2

Crew

8.8

Boarding

7.9

Comfort

8.3

Reviews

1 / 5
2.0
Mediocre

Anonymous,Aug 2024

BKK - ICN

They cancel themselves without any agreement. and they ruined my travel plan all of my next schedule.
Cathay Pacific
7.6
Good
892 reviews
AIR PREMIA
8.2
Very Good
Check prices

Overall

8.2

Entertainment

6.7

Food

7.2

Crew

8.8

Boarding

7.9

Comfort

8.3

Reviews

1 / 5
2.0
Mediocre

Anonymous,Aug 2024

BKK - ICN

They cancel themselves without any agreement. and they ruined my travel plan all of my next schedule.
China Southern
7.5
Good
99 reviews
AIR PREMIA
8.2
Very Good
Check prices

Overall

8.2

Entertainment

6.7

Food

7.2

Crew

8.8

Boarding

7.9

Comfort

8.3

Reviews

1 / 5
2.0
Mediocre

Anonymous,Aug 2024

BKK - ICN

They cancel themselves without any agreement. and they ruined my travel plan all of my next schedule.

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.

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

    Flying on Vietnam Airlines is currently your cheapest option to Bangkok, with prices starting at ฿4,003. Additional round-trip tickets that might be worth considering are offered by Thai AirAsia X and T'way Air, with the lowest prices starting at ฿5,165 and ฿5,262, respectively. These flights start at 52% 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 AirAsia X (฿2,131), Vietnam Airlines (฿2,195), and AIR PREMIA (฿2,260).

  • 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 T'way Air (100%), โอมานแอร์ (94%) or EL AL (92%) 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 ฿6,242, our data indicates the cheapest price to be ฿2,038. The most popular route (Incheon Intl - Bangkok Suvarnabhumi), is priced around ฿4,197.

  • 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, June is the cheapest month in which you can book a flight from Seoul to Bangkok (average of ฿57). Flying from Seoul to Bangkok in December is currently the most expensive (average of ฿79). 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 8 airlines flying from Seoul to Bangkok

Discover the top 8 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 15 June 2025.
AirlineCheapestAverageFlexibilityOn-time
Thai AirAsia XCheapest฿3,508Average฿7,584FlexibilityNo cancel feeOn-timeN/A
Search Thai AirAsia X flights
T'way AirCheapest฿3,610Average฿6,232FlexibilityNo cancel feeOn-time88%
Search T'way Air flights
AIR PREMIACheapest฿4,185Average฿8,337FlexibilityNo cancel feeOn-timeN/A
Search AIR PREMIA flights
Jeju AirCheapest฿6,865Average฿11,671FlexibilityNo cancel feeOn-timeN/A
Search Jeju Air flights
China EasternCheapest฿7,116Average฿10,511FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Asiana AirlinesCheapest฿8,522Average฿12,485FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
Thai AirwaysCheapest฿9,895Average฿14,954FlexibilityNo cancel feeOn-time77%
Search Thai Airways flights
Korean AirCheapest฿12,152Average฿23,023FlexibilityNo 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 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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