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Cheap flights from Seoul to Bangkok from ฿2,188

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 9/10. Fares are subject to change and may not be available on all flights or dates of travel.
SEL — BKK
13 Oct — 20 Oct1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from Seoul to Bangkok are usually found in June or September, booked 49 days in advance, depart on a Thursday or Wednesday 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 13 September 2025.

Round-trip from

฿3,329

One-way from

฿2,188

Popular in

January

Cheapest in

June

Average price

฿5,612
Jeju Air
  • Jeju Air
  • 9/10-16/10
  • Nonstop
  • 11h 30m total
  • Seoul to Bangkok
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T'way Air
  • T'way Air
  • 9/10
  • Nonstop
  • 6h 05m total
  • Seoul to Bangkok
Search Deals
Highest demand for flights based on searches. 25% potential increase in price (฿85,848 potential increase over avg. return price).
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Cheapest flight prices on average. 4% potential price decrease (฿10,567 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 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 13 September 2025.

Sun 14/920:05ICN - BKK
Nonstop5h 54mJeju Air
Sat 27/901:00BKK - ICN
Nonstop5h 40mJeju Air
Deal found 11/9฿3,297
Sun 21/920:05ICN - BKK
Nonstop5h 50mJeju Air
Sat 4/1001:00BKK - ICN
Nonstop5h 40mJeju Air
Deal found 11/9฿3,329
Sat 13/920:05ICN - BKK
Nonstop5h 54mJeju Air
Thu 18/901:00BKK - ICN
Nonstop5h 40mJeju Air
Deal found 12/9฿3,361
Sun 14/920:05ICN - BKK
Nonstop5h 54mJeju Air
Wed 17/901:00BKK - ICN
Nonstop5h 40mJeju Air
Deal found 12/9฿3,392
Sun 14/920:05ICN - BKK
Nonstop5h 54mJeju Air
Thu 18/901:00BKK - ICN
Nonstop5h 40mJeju Air
Deal found 12/9฿3,424
Sun 21/920:05ICN - BKK
Nonstop5h 50mJeju Air
Wed 24/901:00BKK - ICN
Nonstop5h 40mJeju Air
Deal found 11/9฿3,456
Sat 11/1020:05ICN - BKK
Nonstop5h 50mJeju Air
Wed 15/1001:00BKK - ICN
Nonstop5h 40mJeju Air
Deal found 10/9฿3,488
Fri 10/1020:05ICN - BKK
Nonstop5h 50mJeju Air
Wed 15/1001:00BKK - ICN
Nonstop5h 40mJeju Air
Deal found 10/9฿3,646
Sun 14/920:05ICN - BKK
Nonstop5h 54mJeju Air
Wed 24/901:00BKK - ICN
Nonstop5h 40mJeju Air
Deal found 12/9฿3,678
Sat 13/920:05ICN - BKK
Nonstop5h 54mJeju Air
Wed 17/901:00BKK - ICN
Nonstop5h 40mJeju Air
Deal found 11/9฿3,710
Mon 22/911:35ICN - DMK
Nonstop6h 10mThai AirAsia X
Thu 25/902:45DMK - ICN
Nonstop5h 35mThai AirAsia X
Deal found 13/9฿4,978
Wed 17/911:35ICN - DMK
Nonstop6h 10mThai AirAsia X
Mon 29/602:30DMK - ICN
Nonstop5h 35mThai AirAsia X
Deal found 12/9฿5,041

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 13 September 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 17/11

18:05-11:20

1 stop19h 15m

Bangkok Suvarnabhumi

Tue 16/12

22:10-16:30

1 stop16h 20m

฿6,404

SeoulBangkok

GMP - BKK

GMPBKK

Seoul Gimpo Intl

Wed 24/9

19:40-00:10

1 stop30h 30m

Bangkok Suvarnabhumi

Thu 2/10

01:10-08:20

1 stop29h 10m

฿6,975

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Sat 1/11

17:15-21:25

Nonstop6h 10m

Bangkok Suvarnabhumi

Mon 3/11

22:55-06:35

Nonstop5h 40m

฿7,324

IncheonBangkok

ICN - DMK

ICNDMK

Incheon Intl

Fri 14/11

11:20-15:30

Nonstop6h 10m

Bangkok Don Mueang Intl

Mon 17/11

02:30-10:05

Nonstop5h 35m

฿7,482

SeoulBangkok

GMP - BKK

GMPBKK

Seoul Gimpo Intl

Wed 24/9

19:40-00:10

1 stop30h 30m

Bangkok Suvarnabhumi

Fri 3/10

01:10-08:20

1 stop29h 10m

฿7,482

IncheonBangkok

ICN - DMK

ICNDMK

Incheon Intl

Tue 3/3

11:20-15:30

Nonstop6h 10m

Bangkok Don Mueang Intl

Wed 11/3

02:30-10:05

Nonstop5h 35m

฿7,482

SeoulBangkok

GMP - BKK

GMPBKK

Seoul Gimpo Intl

Wed 8/10

19:40-00:10

1 stop30h 30m

Bangkok Suvarnabhumi

Fri 17/10

01:10-08:20

1 stop29h 10m

฿7,609

SeoulBangkok

GMP - BKK

GMPBKK

Seoul Gimpo Intl

Fri 10/10

19:40-00:10

1 stop30h 30m

Bangkok Suvarnabhumi

Sat 18/10

01:10-08:20

1 stop29h 10m

฿7,736

IncheonBangkok

ICN - DMK

ICNDMK

Incheon Intl

Sat 22/11

11:20-15:30

Nonstop6h 10m

Bangkok Don Mueang Intl

Mon 24/11

02:30-10:05

Nonstop5h 35m

฿7,926

IncheonBangkok

ICN - DMK

ICNDMK

Incheon Intl

Mon 17/11

11:20-15:30

Nonstop6h 10m

Bangkok Don Mueang Intl

Fri 21/11

02:30-10:05

Nonstop5h 35m

฿7,958

Flights are sorted by cheapest return flights first.

Deals found on 13/9

Showing 1-10 of 60 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 29 August 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 13 September 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 49% 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 13 September 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 (20 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 13 September 2025.
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

Comfort

8.4

Boarding

8.0

Entertainment

6.9

Overall

8.2

Crew

8.9

Food

7.4

Reviews

1 / 6
8.0
Excellent

Bonnie,Aug 2025

ICN - LAX

Baggage check took two hours. The flight didn't take off until 12:45. I arrived at the airport at 9 am, expecting to be able to check in my two bags quickly. The baggage counter didn't open until 10 am. Families of 4 would take 15-20 minutes to check in luggage. My suggestion would be to open the baggage check-in sooner and also figure out a way for the service crew to check in customers' luggage faster.
AIR PREMIA
8.2
Very Good
AIR PREMIA
8.2
Very Good
Check prices

Comfort

8.4

Boarding

8.0

Entertainment

6.9

Overall

8.2

Crew

8.9

Food

7.4

Reviews

1 / 6
8.0
Excellent

Bonnie,Aug 2025

ICN - LAX

Baggage check took two hours. The flight didn't take off until 12:45. I arrived at the airport at 9 am, expecting to be able to check in my two bags quickly. The baggage counter didn't open until 10 am. Families of 4 would take 15-20 minutes to check in luggage. My suggestion would be to open the baggage check-in sooner and also figure out a way for the service crew to check in customers' luggage faster.
Thai Airways
7.8
Good
350 reviews
AIR PREMIA
8.2
Very Good
Check prices

Comfort

8.4

Boarding

8.0

Entertainment

6.9

Overall

8.2

Crew

8.9

Food

7.4

Reviews

1 / 6
8.0
Excellent

Bonnie,Aug 2025

ICN - LAX

Baggage check took two hours. The flight didn't take off until 12:45. I arrived at the airport at 9 am, expecting to be able to check in my two bags quickly. The baggage counter didn't open until 10 am. Families of 4 would take 15-20 minutes to check in luggage. My suggestion would be to open the baggage check-in sooner and also figure out a way for the service crew to check in customers' luggage faster.

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 6h 05m. Fly via T'way Air, Vietnam Airlines, or Jeju Air to get the fastest option. There are 3663 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 Thai AirAsia X is currently your cheapest option to Bangkok, with prices starting at ฿3,445. Additional round-trip tickets that might be worth considering are offered by AIR PREMIA and T'way Air, with the lowest prices starting at ฿4,110 and ฿4,397, respectively. These flights start at 56% 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 Jin Air (฿2,251), Thai AirAsia X (฿2,536), and AIR PREMIA (฿2,663).

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

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

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

    Consider EL AL (98%), เตอร์กิชแอร์ไลน์ (98%) or AIR PREMIA (98%) 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 ฿12,184, our data indicates the cheapest price to be ฿1,956. The most popular route (Incheon Intl - Bangkok Suvarnabhumi), is priced around ฿3,773.

  • 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
Busan to Chiang Mai flights
Daegu to Suvarnabhumi flights
Busan to Krabi flights

Top 6 airlines flying from Seoul to Bangkok

Discover the top 6 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 13 September 2025.
AirlineCheapestAverageFlexibilityOn-time
Thai AirAsia XCheapest฿3,445Average฿7,833FlexibilityNo cancel feeOn-timeN/A
Search Thai AirAsia X flights
AIR PREMIACheapest฿4,110Average฿8,976FlexibilityNo cancel feeOn-timeN/A
Search AIR PREMIA flights
T'way AirCheapest฿4,397Average฿6,120FlexibilityNo cancel feeOn-time88%
Search T'way Air flights
Jeju AirCheapest฿7,006Average฿13,592FlexibilityNo cancel feeOn-timeN/A
Search Jeju Air flights
Asiana AirlinesCheapest฿7,405Average฿13,063FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
Thai AirwaysCheapest฿11,582Average฿14,687FlexibilityNo 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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