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Cheap flights from Seoul to Bangkok from $139

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seoul to Bangkok departing on 2/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult

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Cheap return flights

Enter your travel dates to find the best prices.
Vietnam Airlines Logo
10:05 - 21:05
ICN
-
BKK
13h 00m1 stop
Vietnam Airlines Logo
15:55 - 05:50
BKK
-
ICN
11h 55m1 stop
$286Vietnam Airlines
Fri, 29 May - Wed, 3 Jun
Vietnam Airlines Logo
11:05 - 17:05
ICN
-
BKK
8h 00m1 stop
Vietnam Airlines Logo
18:05 - 06:00
BKK
-
ICN
9h 55m1 stop
$288Vietnam Airlines
Fri, 15 May - Sun, 17 May
Vietnam Airlines Logo
10:05 - 18:05
ICN
-
BKK
10h 00m1 stop
Vietnam Airlines Logo
19:05 - 16:35
BKK
-
ICN
19h 30m1 stop
$289Vietnam Airlines
Tue, 2 Jun - Sat, 6 Jun
Vietnam Airlines Logo
10:05 - 18:05
ICN
-
BKK
10h 00m1 stop
Vietnam Airlines Logo
22:15 - 16:35
BKK
-
ICN
16h 20m1 stop
$295Vietnam Airlines
Sat, 11 Apr - Thu, 16 Apr
Vietnam Airlines Logo
18:05 - 10:50
ICN
-
BKK
18h 45m1 stop
Vietnam Airlines Logo
21:05 - 16:25
BKK
-
ICN
17h 20m1 stop
$298Vietnam Airlines
Fri, 3 Apr - Sun, 5 Apr
Vietnam Airlines Logo
10:05 - 21:05
ICN
-
BKK
13h 00m1 stop
Vietnam Airlines Logo
15:55 - 05:50
BKK
-
ICN
11h 55m1 stop
$306Vietnam Airlines
Mon, 30 Mar - Mon, 6 Apr
AIR PREMIA Logo
17:15 - 21:25
ICN
-
BKK
6h 10mdirect
AIR PREMIA Logo
22:55 - 06:35
BKK
-
ICN
5h 40mdirect
$308AIR PREMIA
Thu, 19 Feb - Thu, 12 Mar
Vietnam Airlines Logo
10:05 - 21:05
ICN
-
BKK
13h 00m1 stop
Vietnam Airlines Logo
22:15 - 16:35
BKK
-
ICN
16h 20m1 stop
$309Vietnam Airlines
Sun, 29 Mar - Tue, 7 Apr
Vietnam Airlines Logo
18:05 - 18:05
ICN
-
BKK
26h 00m1 stop
Vietnam Airlines Logo
22:15 - 16:35
BKK
-
ICN
16h 20m1 stop
$317Vietnam Airlines
Sat, 28 Mar - Tue, 31 Mar
Air China Logo
11:10 - 21:30
ICN
-
BKK
12h 20m1 stop
Air China Logo
23:50 - 11:40
BKK
-
ICN
9h 50m1 stop
$326Air China
Wed, 31 Dec - Mon, 5 Jan

China Eastern flights from Seoul to Bangkok Suvarnabhumi Airport

Our best China Eastern deals on Seoul to Bangkok Suvarnabhumi Airport flight tickets
China Eastern
8 Jan
ICN12:15Incheon Intl
15h 05m
1 stop
BKK01:20Bangkok Suvarnabhumi
14 Jan
BKK02:20Bangkok Suvarnabhumi
15h 30m
1 stop
ICN19:50Incheon Intl
$292
Find similar
China Eastern
8 Jan
ICN12:15Incheon Intl
15h 05m
1 stop
BKK01:20Bangkok Suvarnabhumi
15 Jan
BKK19:55Bangkok Suvarnabhumi
17h 00m
2 stops
ICN14:55Incheon Intl
$324
Find similar
China Eastern
8 Jan
ICN06:50Incheon Intl
17h 45m
3 stops
BKK22:35Bangkok Suvarnabhumi
14 Jan
BKK02:20Bangkok Suvarnabhumi
15h 30m
1 stop
ICN19:50Incheon Intl
$363
Find similar

AIR PREMIA flights from Seoul to Bangkok Suvarnabhumi Airport

Our best AIR PREMIA deals on Seoul to Bangkok Suvarnabhumi Airport flight tickets
AIR PREMIA
19 Feb
ICN17:15Incheon Intl
6h 10m
BKK21:25Bangkok Suvarnabhumi
12 Mar
BKK22:55Bangkok Suvarnabhumi
5h 40m
ICN06:35Incheon Intl
$308
Find similar
AIR PREMIA
19 Feb
ICN17:15Incheon Intl
6h 10m
BKK21:25Bangkok Suvarnabhumi
5 Mar
BKK22:55Bangkok Suvarnabhumi
5h 40m
ICN06:35Incheon Intl
$309
Find similar
AIR PREMIA
17 Mar
ICN17:15Incheon Intl
6h 10m
BKK21:25Bangkok Suvarnabhumi
28 Mar
BKK22:55Bangkok Suvarnabhumi
5h 40m
ICN06:35Incheon Intl
$329
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Seoul to Bangkok Suvarnabhumi Airport 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, momondo users made 78,305 searches. Data last updated 9 December 2025.
Use the filters below to find and compare flights from Seoul to Bangkok Suvarnabhumi Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Fri 29/5

10:05-21:05

1 stop13h 00m

Bangkok Suvarnabhumi

Wed 3/6

15:55-05:50

1 stop11h 55m

$286

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Fri 15/5

11:05-17:05

1 stop8h 00m

Bangkok Suvarnabhumi

Sun 17/5

18:05-06:00

1 stop9h 55m

$288

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Tue 2/6

10:05-18:05

1 stop10h 00m

Bangkok Suvarnabhumi

Sat 6/6

19:05-16:35

1 stop19h 30m

$289

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Sat 11/4

10:05-18:05

1 stop10h 00m

Bangkok Suvarnabhumi

Thu 16/4

22:15-16:35

1 stop16h 20m

$295

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Fri 3/4

18:05-10:50

1 stop18h 45m

Bangkok Suvarnabhumi

Sun 5/4

21:05-16:25

1 stop17h 20m

$298

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Mon 30/3

10:05-21:05

1 stop13h 00m

Bangkok Suvarnabhumi

Mon 6/4

15:55-05:50

1 stop11h 55m

$306

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Thu 19/2

17:15-21:25

Nonstop6h 10m

Bangkok Suvarnabhumi

Thu 12/3

22:55-06:35

Nonstop5h 40m

$308

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Sun 29/3

10:05-21:05

1 stop13h 00m

Bangkok Suvarnabhumi

Tue 7/4

22:15-16:35

1 stop16h 20m

$309

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Sat 28/3

18:05-18:05

1 stop26h 00m

Bangkok Suvarnabhumi

Tue 31/3

22:15-16:35

1 stop16h 20m

$317

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Wed 31/12

11:10-21:30

1 stop12h 20m

Bangkok Suvarnabhumi

Mon 5/1

23:50-11:40

1 stop9h 50m

$326

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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See travel insights to Bangkok from

How to get the cheapest flight ticket from Seoul to Bangkok Suvarnabhumi Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Bangkok Suvarnabhumi Airport?

If you are unable to visit Bangkok Suvarnabhumi Airport during the month of September, then departing from Seoul during the month June is also very affordable. Most momondo users find prices during this month for around $267.

What is the cheapest day to depart on your flight to Bangkok Suvarnabhumi Airport?

On average, the least expensive day to fly to Bangkok Suvarnabhumi Airport from Seoul is on a Friday. momondo users have found tickets for Friday departures for as low as $573. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to Bangkok Suvarnabhumi Airport on Saturday is $949.

What is the cheapest time of day to depart on your flight to Bangkok Suvarnabhumi Airport?

According to our data, the cheapest time of day to fly to Bangkok Suvarnabhumi Airport is in the afternoon. momondo users have found flights departing from Seoul to Bangkok Suvarnabhumi Airport in the afternoon for as low as $281. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $568 on average. Flights to Bangkok Suvarnabhumi Airport from Seoul in the morning are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest Seoul to Bangkok Suvarnabhumi flight route?

Fly from Incheon Intl to Bangkok Suvarnabhumi for the best Seoul - Bangkok Suvarnabhumi flight prices

How far in advance should I book a flight to Bangkok Suvarnabhumi Airport?

You are more likely to see cheaper flights to Bangkok Suvarnabhumi Airport from Seoul when booking weeks ahead of your departure date. In general, you can expect to find flights to Bangkok Suvarnabhumi Airport for around $366 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Bangkok Suvarnabhumi Airport from Seoul for as low as $323 on momondo.

What cabin class options are available on Seoul to Bangkok Suvarnabhumi flights?

There are 3 cabin classes available to choose from on Seoul to Bangkok Suvarnabhumi flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Seoul to Bangkok Suvarnabhumi Airport flights?

You could potentially save up to 55% on your flight if you consider stops on a Seoul to Bangkok Suvarnabhumi Airport flight.

How have Seoul to Bangkok Suvarnabhumi Airport flight prices changed over time?

As of December 2025, prices for Seoul to Bangkok Suvarnabhumi Airport flights are approximately 36% cheaper when compared to flights at the same time last year.

When to book flights from Seoul to Bangkok Suvarnabhumi Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Seoul to Bangkok Suvarnabhumi Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Seoul to Bangkok Suvarnabhumi Airport (SEL to BKK) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seoul to Bangkok Suvarnabhumi Airport

Fastest flight time

6h 00m

Direct flights

Every day
The fastest flight from Seoul to Bangkok Suvarnabhumi Airport takes 6h 00m
Direct flights go from Seoul to Bangkok Suvarnabhumi Airport every day.
Search flight deals

  • How far is Seoul to Bangkok Suvarnabhumi by plane?

    The distance between Seoul and Bangkok Suvarnabhumi is about 3707.5 km. 6h 00m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Seoul to Bangkok Suvarnabhumi Airport?

    Prices for flights from Seoul to Bangkok Suvarnabhumi Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Seoul to Bangkok Suvarnabhumi Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Seoul to Bangkok Suvarnabhumi Airport.

  • What documentation or ID do you need to fly to Bangkok Suvarnabhumi Airport?

    The required travel and health documents for your Bangkok Suvarnabhumi Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Bangkok Suvarnabhumi Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Seoul to Bangkok Suvarnabhumi Airport?

  • What is the most popular airline from Seoul to Bangkok Suvarnabhumi Airport?

Travelling to a place near Bangkok?

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

Why use momondo?

Why should I use momondo to find a flight deal from Seoul to Bangkok?

It is quick and easy to find Seoul to Bangkok flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Bangkok that suits you.

Can I find flights from Seoul to Bangkok with flexible booking policies on momondo?

momondo does allow users to show only those flights to Bangkok from Seoul which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Seoul to Bangkok?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Bangkok from Seoul.

I’m not ready to book a flight from Seoul to Bangkok right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Bangkok from Seoul. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Bangkok Suvarnabhumi Airport trip

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