Cheap flights from Seoul to Bangkok Suvarnabhumi Airport from $121

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 15/9. Fares are subject to change and may not be available on all flights or dates of travel.
SEL — BKK
6 Aug — 13 Aug1
1 adult

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

Cheap flight deals from Seoul to Suvarnabhumi

Discover tips and strategies to find the most affordable flight options for your journey from Seoul (SEL) to Suvarnabhumi (BKK). 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 1 August 2025.

Round-trip from

$199

One-way from

$121

Popular in

January

Cheapest in

June

Average price

$345

Good one-way deal

$131 or less
Vietnam Airlines
  • Vietnam Airlines
  • 13/9-20/9
  • 2 total stops
  • 38h 15m total
  • Seoul to Bangkok
Air Busan
  • Air Busan
  • 15/9
  • Nonstop
  • 6h 05m total
  • Seoul to Bangkok
Highest demand for flights based on searches. 24% potential increase in price ($196 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease ($27 potential savings vs. average return price).
Average for round-trip flights in August 2025
Price to beat on a one-way flight from Seoul (SEL) to Bangkok Suvarnabhumi.

Find flight deals from Seoul to Suvarnabhumi

Cheapest flights from Seoul to Suvarnabhumi
Explore the most affordable flight options available from Seoul to Suvarnabhumi. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 August 2025.

Sat 13/918:05ICN - BKK
1 stop18h 45mVietnam Airlines
Sat 20/919:05BKK - ICN
1 stop19h 30mVietnam Airlines
Deal found 30/7$199
Thu 28/816:50ICN - BKK
Nonstop6h 20mAIR PREMIA
Thu 4/922:45BKK - ICN
Nonstop5h 40mAIR PREMIA
Deal found 30/7$231
Sat 13/920:05ICN - BKK
Nonstop5h 54mJeju Air
Thu 18/901:00BKK - ICN
Nonstop5h 40mJeju Air
Deal found 30/7$244
Tue 5/819:55ICN - BKK
Nonstop5h 50mJin Air
Wed 13/800:55BKK - ICN
Nonstop5h 30mJin Air
Deal found 31/7$245
Sat 13/918:00ICN - BKK
Nonstop6h 35mT'way Air
Fri 19/900:05BKK - ICN
Nonstop5h 35mT'way Air
Deal found 30/7$275
Sat 13/916:45ICN - BKK
1 stop19h 35mChina Southern
Fri 19/903:00BKK - ICN
1 stop16h 50mChina Southern
Deal found 30/7$276

Cheapflights Fare Finder

 
Customise your flight search to find flights from Seoul to Suvarnabhumi 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 647,157 searches. Data last updated 1 August 2025.
Use the filters below to find and compare flights from Seoul to Bangkok Suvarnabhumi Airport that are best for you.

Fly from

Seoul

Fly to

Suvarnabhumi

Route

Depart

Return

Price

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Sat 13/9

18:05-10:50

1 stop18h 45m

Bangkok Suvarnabhumi

Sat 20/9

19:05-16:35

1 stop19h 30m

$199

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Thu 28/8

16:50-21:10

Nonstop6h 20m

Bangkok Suvarnabhumi

Thu 4/9

22:45-06:25

Nonstop5h 40m

$231

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Sat 13/9

20:05-23:59

Nonstop5h 54m

Bangkok Suvarnabhumi

Thu 18/9

01:00-08:40

Nonstop5h 40m

$244

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Sat 13/9

18:00-22:35

Nonstop6h 35m

Bangkok Suvarnabhumi

Fri 19/9

00:05-07:40

Nonstop5h 35m

$275

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Sat 13/9

16:45-10:20

1 stop19h 35m

Bangkok Suvarnabhumi

Fri 19/9

03:00-21:50

1 stop16h 50m

$276

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Mon 11/8

19:55-23:45

Nonstop5h 50m

Bangkok Suvarnabhumi

Wed 13/8

00:55-08:25

Nonstop5h 30m

$286

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Mon 15/9

17:15-21:20

Nonstop6h 05m

$121

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Wed 6/8

19:55-23:45

Nonstop5h 50m

$123

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Thu 7/8

16:50-21:10

Nonstop6h 20m

$124

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Fri 19/9

18:00-22:35

Nonstop6h 35m

$130

Flights are sorted by cheapest return flights first.

Deals found on 30/7

Showing 1-10 of 17 results
1
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Best time to book a flight from Seoul to Suvarnabhumi

Have a flexible travel schedule? Discover the best time to fly to Suvarnabhumi 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 Suvarnabhumi Airport

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

Use this chart to determine the optimal time to book a return flight from Seoul to Suvarnabhumi. Price data was last updated on 25 July 2025.

The best time to book flights from Seoul to Bangkok Suvarnabhumi Airport is 49 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, February is the cheapest month in which you can book a flight from Seoul to Bangkok Suvarnabhumi Airport (average of $489). Flying from Seoul to Bangkok Suvarnabhumi Airport in December is currently the most expensive (average of $911). 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 Suvarnabhumi. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 1 August 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 32% on flights from Seoul to Bangkok Suvarnabhumi Airport by exploring options for tickets at midday.

Weekly flight availability from Seoul to Bangkok Suvarnabhumi Airport

Explore weekly flight availability from Seoul to Suvarnabhumi. 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 1 August 2025.

The most flights from SEL to BKK are scheduled on a Wednesday (38 on average). You will have fewer flight options on Monday, 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 Suvarnabhumi Airport?

What’s the top stopover airport for flights from Seoul to Bangkok Suvarnabhumi Airport?

Share of one-stop return flights from Seoul to Bangkok Suvarnabhumi Airport chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Hong Kong (HKG) – chosen by Cheapflights users on 67% of one-stop itineraries from Seoul to Bangkok Suvarnabhumi Airport on Cheapflights.

What’s the cheapest stopover airport for flights from Seoul to Bangkok Suvarnabhumi Airport?

Average return fare for one-stop flights from Seoul to Bangkok Suvarnabhumi Airport, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Qingdao (TAO) is the most affordable one-stop option, with an average return flight price of $900.

What’s the fastest stopover option from Seoul to Bangkok Suvarnabhumi Airport?

Shortest average travel time for one-stop one-way flights from Seoul to Bangkok Suvarnabhumi Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Hong Kong (HKG) have the shortest average one-way travel time for one-stop routes: 9h 20m.

Which airport typically offers the quickest stopover for flights from Seoul to Bangkok Suvarnabhumi Airport?

Average stopover duration for one-stop one-way flights from Seoul to Bangkok Suvarnabhumi Airport, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Hong Kong (HKG) offer the fastest connection on this route, with an average stopover time of 1h 53m.

Reviews of airlines servicing Suvarnabhumi

Get insights into the airlines that provide service to Suvarnabhumi. 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 Suvarnabhumi. Reviews last updated 1 August 2025.
Read through reviews of airlines operating flights from Seoul to Bangkok Suvarnabhumi Airport, such as AIR PREMIA, China Southern, andVietnam Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
AIR PREMIA
8.2
Very Good

Crew

8.9

Food

7.3

Boarding

7.9

Comfort

8.3

Entertainment

6.8

Overall

8.2

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

Crew

8.9

Food

7.3

Boarding

7.9

Comfort

8.3

Entertainment

6.8

Overall

8.2

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

Crew

8.9

Food

7.3

Boarding

7.9

Comfort

8.3

Entertainment

6.8

Overall

8.2

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

Crew

8.9

Food

7.3

Boarding

7.9

Comfort

8.3

Entertainment

6.8

Overall

8.2

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 Suvarnabhumi. 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 Suvarnabhumi Airport round-trip?

    Cheapflights users have booked flights from Seoul to Bangkok Suvarnabhumi Airport round-trip from $199. Other airlines that can offer you cheap pricing are AIR PREMIA, from $231, and Jeju Air, from $244. Users have found that Vietnam Airlines is 49% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Seoul to Bangkok Suvarnabhumi Airport one-way?

    The cheapest airline one-way is Air Busan, with whom users have recently found tickets for as low as $121. However, be on the lookout for offers from Jin Air and AIR PREMIA, as they are both options that can get you from Seoul to Bangkok Suvarnabhumi Airport for a low price.

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

    Before booking your flight to Bangkok Suvarnabhumi Airport from Seoul, have a look at the most reliable airlines to get you to your destination on time: Oman Air (100%), T'way Air (100%), AIR PREMIA( 100%).

  • What are the cheapest flights from Seoul to Bangkok Suvarnabhumi Airport?

    On average you can expect to pay $184 for a flight from Seoul to Bangkok Suvarnabhumi Airport. The cheapest flight overall is $118 while the most popular route, (Incheon Intl - Bangkok Suvarnabhumi) is currently priced at $961.

  • Can I find deals for flights from Seoul to Suvarnabhumi that include hotel bookings?

    Yes. In addition to deals on Seoul to Suvarnabhumi flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Seoul to Suvarnabhumi?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seoul to Suvarnabhumi.

  • Can I find deals for business class flights from Seoul to Suvarnabhumi?

    Yes. Cheapflights offers flight deals from Seoul to Suvarnabhumi 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 Suvarnabhumi Airport?

    Currently, February is the cheapest month in which you can book a flight from Seoul to Bangkok Suvarnabhumi Airport (average of $489). Flying from Seoul to Bangkok Suvarnabhumi Airport in December is currently the most expensive (average of $911). 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

Travelling to a place near Bangkok Suvarnabhumi Airport?

Book flights to Bangkok Suvarnabhumi Airport if you plan to visit one of these locations
Chonburi
Ko Samet
Ko Lan
Cha-am
Sattahip
Ayutthaya

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Alternative routes for Seoul to Suvarnabhumi

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Seoul to Suvarnabhumi

Discover the top 2 airlines that operate flights from Seoul to Suvarnabhumi. 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 647,157 searches. Data last updated 1 August 2025.
AirlineCheapestAverageFlexibilityOn-time
Thai AirAsia XCheapest$270Average$346FlexibilityNo cancel feeOn-timeN/A
Search Thai AirAsia X flights
Thai AirwaysCheapest$553Average$621FlexibilityNo cancel feeOn-time77%
Search Thai Airways flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Seoul to Suvarnabhumi?

When you search for this flight from Seoul to Suvarnabhumi, 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 Suvarnabhumi?

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Can Cheapflights find flights from Seoul to Suvarnabhumi with no change fees?

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Can Cheapflights notify me if prices for flights from Seoul to Suvarnabhumi become cheaper?

Yes, Cheapflights offers price alerts on Seoul to Suvarnabhumi flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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