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Cheap flights from Seoul to Bangkok from ฿4,054

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 27/10. Fares are subject to change and may not be available on all flights or dates of travel.
SEL — BKK
29 Aug — 5 Sep1
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 Thursday or Saturday 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 30 July 2026.

Wed 2/1214:25
GMP
-
BKK
1 stop11h 45m
Air China
Fri 4/1201:30
BKK
-
GMP
1 stop9h 35m
Air China
Deal found 25/7฿7,907
Tue 1/910:35
ICN
-
BKK
1 stop9h 55m
Vietnam Airlines
Sat 5/922:15
BKK
-
ICN
1 stop29h 35m
Vietnam Airlines
Deal found 29/7฿8,041
Sat 10/1000:30
ICN
-
BKK
1 stop18h 35m
Vietnam Airlines
Tue 27/1019:35
BKK
-
ICN
1 stop18h 50m
Vietnam Airlines
Deal found 26/7฿8,074
Mon 7/910:35
ICN
-
BKK
1 stop11h 25m
Vietnam Airlines
Thu 10/919:05
BKK
-
ICN
1 stop19h 30m
Vietnam Airlines
Deal found 30/7฿8,108
Sun 30/818:05
ICN
-
BKK
1 stop22h 40m
Vietnam Airlines
Sat 5/922:15
BKK
-
ICN
1 stop29h 35m
Vietnam Airlines
Deal found 29/7฿8,141
Sun 30/820:05
ICN
-
BKK
Nonstop6h 05m
Jeju Air
Thu 3/901:10
BKK
-
ICN
Nonstop5h 45m
Jeju Air
Deal found 30/7฿8,175
Fri 21/820:05
ICN
-
BKK
Nonstop6h 05m
Multiple Airlines
Tue 25/802:25
BKK
-
ICN
Nonstop5h 35m
Multiple Airlines
Deal found 26/7฿8,208
Mon 31/818:00
ICN
-
BKK
Nonstop6h 05m
T'way Air
Thu 3/900:05
BKK
-
ICN
Nonstop5h 35m
T'way Air
Deal found 29/7฿8,242
Sun 30/818:00
ICN
-
BKK
Nonstop6h 05m
T'way Air
Tue 1/900:05
BKK
-
ICN
Nonstop5h 35m
T'way Air
Deal found 29/7฿8,275
Wed 19/810:35
ICN
-
BKK
1 stop9h 55m
Vietnam Airlines
Mon 31/811:55
BKK
-
ICN
1 stop15h 55m
Vietnam Airlines
Deal found 30/7฿8,309
Wed 19/818:00
ICN
-
BKK
Nonstop6h 05m
Multiple Airlines
Sun 23/802:25
BKK
-
ICN
Nonstop5h 35m
Multiple Airlines
Deal found 26/7฿8,342
Sun 23/812:10
ICN
-
BKK
Nonstop5h 50m
Thai Vietjet Air
Tue 25/802:25
BKK
-
ICN
Nonstop5h 35m
Thai Vietjet Air
Deal found 26/7฿8,376

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 30 July 2026.

Round-trip from

฿7,907

One-way from

฿4,054

Popular in

June

Cheapest in

September

Average price

฿11,257
Air China
  • Air China
  • 2/12-4/12
  • 2 total stops
  • 21h 20m total
  • Seoul to Bangkok
Search Deals
Thai Vietjet Air
  • Thai Vietjet Air
  • 27/10
  • Nonstop
  • 5h 50m total
  • Seoul to Bangkok
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (฿70,508 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿7,016 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 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 30 July 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

Mon 7/9

20:05-00:10

Nonstop6h 05m

Bangkok Suvarnabhumi

Sat 12/9

01:10-08:55

Nonstop5h 45m

฿8,610

IncheonBangkok

ICN - DMK

ICNDMK

Incheon Intl

Tue 6/10

12:05-15:50

Nonstop5h 45m

Bangkok Don Mueang Intl

Sun 11/10

02:45-10:35

Nonstop5h 50m

฿9,649

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Sat 12/9

20:05-00:10

Nonstop6h 05m

Bangkok Suvarnabhumi

Wed 16/9

01:10-08:55

Nonstop5h 45m

฿9,883

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Sat 19/9

20:05-00:10

Nonstop6h 05m

Bangkok Suvarnabhumi

Tue 22/9

01:10-08:55

Nonstop5h 45m

฿10,017

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Fri 18/9

17:15-21:10

Nonstop5h 55m

Bangkok Suvarnabhumi

Sun 20/9

22:45-06:15

Nonstop5h 30m

฿10,218

IncheonBangkok

ICN - DMK

ICNDMK

Incheon Intl

Mon 12/10

12:05-15:50

Nonstop5h 45m

Bangkok Don Mueang Intl

Tue 20/10

02:45-10:35

Nonstop5h 50m

฿10,218

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Wed 7/10

19:55-23:45

Nonstop5h 50m

Bangkok Suvarnabhumi

Sun 11/10

00:45-08:25

Nonstop5h 40m

฿10,319

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Wed 7/10

19:55-23:45

Nonstop5h 50m

Bangkok Suvarnabhumi

Thu 8/10

00:45-08:25

Nonstop5h 40m

฿10,319

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Tue 20/10

18:00-22:05

Nonstop6h 05m

Bangkok Suvarnabhumi

Sat 31/10

01:30-09:00

Nonstop5h 30m

฿10,486

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Sat 17/10

18:00-22:05

Nonstop6h 05m

Bangkok Suvarnabhumi

Thu 29/10

01:30-09:00

Nonstop5h 30m

฿10,888

Flights are sorted by cheapest return flights first.

Deals found on 25/7

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 ฿5,360). Flying from Seoul to Bangkok in July is currently the most expensive (average of ฿11,123). 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 30 July 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 63% 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 30 July 2026.

The most flights from SEL to TH1 are scheduled on a Thursday (40 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (32 on average).

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

Airfare is typical for this route at the moment.
Seoul to Bangkok flights typically cost between ฿6,030 and ฿9,950 in December.
The cheapest return price found within the last 5 days was ฿7,907 on Air China (2 Dec–4 Dec).

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 37 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 30 July 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

Crew

8.8

Food

7.2

Boarding

8.0

Entertainment

6.8

Comfort

8.1

Overall

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

Crew

8.8

Food

7.2

Boarding

8.0

Entertainment

6.8

Comfort

8.1

Overall

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 5h 45m. Fly via Jeju Air, Thai AirAsia, or AIR PREMIA to get the fastest option. There are 3655 km between Seoul and Bangkok. Most flights are nonstop.

  • 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 ฿2,817. This flight start at 69% 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 (฿1,802), Thai Vietjet Air (฿1,964), and Thai AirAsia X (฿2,044).

  • 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 (94%) 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 ฿4,701, our data indicates the cheapest price to be ฿4,073. The most popular route (Incheon Intl - Bangkok Suvarnabhumi), is priced around ฿7,706.

  • 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 ฿5,360). Flying from Seoul to Bangkok in July is currently the most expensive (average of ฿11,123). 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 30 July 2026.
AirlineCheapestAverageFlexibilityOn-time
AIR PREMIACheapest฿2,817Average฿9,485FlexibilityNo 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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