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Cheap flights from Seoul to Bangkok from ฿4,352

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 28/7. Fares are subject to change and may not be available on all flights or dates of travel.
SEL — BKK
19 Jul — 26 Jul1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Seoul to Bangkok are usually found in September or March, booked 20 days in advance, depart on a Friday or Sunday and return on a Sunday

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 19 June 2026.

Wed 24/622:15
ICN
-
BKK
1 stop29h 10m
Shandong Airlines
Wed 1/702:25
BKK
-
ICN
1 stop19h 25m
Shandong Airlines
Deal found 15/6฿7,756
Fri 26/617:15
ICN
-
BKK
Nonstop5h 55m
AIR PREMIA
Thu 2/722:45
BKK
-
ICN
Nonstop5h 30m
AIR PREMIA
Deal found 16/6฿7,821
Tue 30/623:40
ICN
-
BKK
1 stop27h 45m
Shandong Airlines
Mon 20/702:50
BKK
-
ICN
1 stop9h 40m
Shandong Airlines
Deal found 18/6฿7,854
Tue 30/611:45
ICN
-
BKK
1 stop15h 40m
Shandong Airlines
Fri 3/702:25
BKK
-
ICN
1 stop16h 50m
Shandong Airlines
Deal found 18/6฿7,887
Thu 18/622:15
ICN
-
BKK
1 stop29h 10m
Shandong Airlines
Wed 1/702:25
BKK
-
ICN
1 stop16h 50m
Shandong Airlines
Deal found 15/6฿7,920
Thu 18/622:15
ICN
-
BKK
1 stop29h 10m
Shandong Airlines
Sun 21/602:25
BKK
-
ICN
1 stop16h 50m
Shandong Airlines
Deal found 15/6฿7,952
Tue 30/608:35
ICN
-
BKK
1 stop18h 50m
Shandong Airlines
Thu 9/702:50
BKK
-
ICN
1 stop15h 55m
Shandong Airlines
Deal found 18/6฿8,149
Wed 24/623:40
ICN
-
BKK
1 stop27h 45m
Shandong Airlines
Tue 30/602:50
BKK
-
ICN
1 stop17h 05m
Shandong Airlines
Deal found 16/6฿8,247
Tue 23/622:15
ICN
-
BKK
1 stop29h 10m
Shandong Airlines
Mon 29/602:50
BKK
-
ICN
1 stop9h 40m
Shandong Airlines
Deal found 18/6฿8,410
Fri 26/614:00
ICN
-
BKK
1 stop13h 50m
Shandong Airlines
Sun 5/702:25
BKK
-
ICN
1 stop30h 20m
Shandong Airlines
Deal found 15/6฿8,476
Thu 25/620:50
GMP
-
BKK
1 stop17h 40m
China Eastern
Wed 1/702:10
BKK
-
GMP
1 stop15h 40m
China Eastern
Deal found 16/6฿9,654
Thu 25/620:50
GMP
-
BKK
1 stop17h 40m
China Eastern
Mon 6/721:55
BKK
-
GMP
1 stop11h 05m
China Eastern
Deal found 16/6฿10,341

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 19 June 2026.

Round-trip from

฿7,756

One-way from

฿4,352

Popular in

May

Cheapest in

September

Average price

฿8,214
Shandong Airlines
  • Shandong Airlines
  • 29/6-3/7
  • 2 total stops
  • 47h 10m total
  • Seoul to Bangkok
Search Deals
Thai Vietjet Air
  • Thai Vietjet Air
  • 28/7
  • Nonstop
  • 5h 50m total
  • Seoul to Bangkok
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (฿47,007 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿7,219 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 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 19 June 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

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Tue 30/6

22:15-01:25

1 stop29h 10m

Bangkok Suvarnabhumi

Tue 14/7

02:50-15:45

1 stop10h 55m

฿8,738

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Sun 25/10

19:50-00:10

Nonstop6h 20m

Bangkok Suvarnabhumi

Fri 30/10

01:30-09:00

Nonstop5h 30m

฿10,079

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Sun 8/11

19:50-00:10

Nonstop6h 20m

Bangkok Suvarnabhumi

Tue 10/11

01:30-09:00

Nonstop5h 30m

฿10,210

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Tue 13/10

18:00-22:05

Nonstop6h 05m

Bangkok Suvarnabhumi

Wed 14/10

00:05-07:40

Nonstop5h 35m

฿10,210

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Mon 26/10

19:50-00:10

Nonstop6h 20m

Bangkok Suvarnabhumi

Wed 4/11

01:30-09:00

Nonstop5h 30m

฿10,210

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Sat 7/11

19:50-00:10

Nonstop6h 20m

Bangkok Suvarnabhumi

Tue 10/11

01:30-09:00

Nonstop5h 30m

฿10,243

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Sun 19/7

14:00-01:50

1 stop13h 50m

Bangkok Suvarnabhumi

Sat 25/7

02:50-20:45

1 stop15h 55m

฿10,636
Fastest return journey

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Mon 29/6

19:55-23:45

Nonstop5h 50m

Bangkok Suvarnabhumi

Thu 2/7

00:45-08:25

Nonstop5h 40m

฿11,094

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Thu 2/7

19:55-23:45

Nonstop5h 50m

Bangkok Suvarnabhumi

Tue 7/7

00:45-08:25

Nonstop5h 40m

฿11,519

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Fri 7/8

20:05-00:10

Nonstop6h 05m

Bangkok Suvarnabhumi

Mon 10/8

01:10-08:55

Nonstop5h 45m

฿11,716

Flights are sorted by cheapest return flights first.

Deals found on 14/6

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 ฿5,105). Flying from Seoul to Bangkok in May is currently the most expensive (average of ฿10,308). 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 19 June 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 19 June 2026.

The most flights from SEL to TH1 are scheduled on a Thursday (36 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (30 on average).

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

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

To ensure you get the cheapest price possible for a flight from Seoul to Bangkok, you should look to book at least 19 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.

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 19 June 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
8.1
Very Good
Check prices

Overall

8.1

Entertainment

6.9

Crew

8.8

Food

7.2

Comfort

8.1

Boarding

8.1

Reviews

1 / 9
10.0
Excellent

Anonymous,Jun 2026

ICN - IAD

Excellent, I would recommend to my friends, and I will be repeated customer! Thank you,
AIR PREMIA
8.1
Very Good
AIR PREMIA
8.1
Very Good
Check prices

Overall

8.1

Entertainment

6.9

Crew

8.8

Food

7.2

Comfort

8.1

Boarding

8.1

Reviews

1 / 9
10.0
Excellent

Anonymous,Jun 2026

ICN - IAD

Excellent, I would recommend to my friends, and I will be repeated customer! Thank you,

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 20m. Fly via Shandong Airlines, T'way Air, 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 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 ฿2,752. This flight start at 67% 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 (฿1,760), Thai Vietjet Air (฿1,918), and Thai AirAsia X (฿1,996).

  • 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 คูเวตแอร์เวย์ (100%), AIR PREMIA (100%) or EL AL (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 ฿8,480, our data indicates the cheapest price to be ฿5,239. The most popular route (Incheon Intl - Bangkok Suvarnabhumi), is priced around ฿9,261.

  • 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 ฿5,105). Flying from Seoul to Bangkok in May is currently the most expensive (average of ฿10,308). 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 19 June 2026.
AirlineCheapestAverageFlexibilityOn-time
AIR PREMIACheapest฿2,752Average฿11,072FlexibilityNo 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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