How many flights depart from Seoul to Southeast Asia on average per day?

44 flights are operational daily from Seoul to Southeast Asia as of June 2026. The most popular departure time for this route is 18:00, with 50% of flights per day taking off in the evening.

How many flights depart from Seoul to Southeast Asia on average per week?

As of June 2026, there are 314 flights per week flying from Seoul to Southeast Asia. The most common day of the week flights depart is Wed, with 15% of flights taking off on this day.

What is the cheapest airline that flies from Seoul to Southeast Asia?

T'way Air, AIR PREMIA, and Jeju Air are the most popular carriers operating from Seoul to Southeast Asia

When did momondo last update prices for flights from Seoul to Southeast Asia?

Prices for flights from Seoul to Southeast Asia refresh daily.

How old do you have to be to fly from Seoul to Southeast Asia?

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 Southeast Asia.

What documentation or ID do you need to fly to Southeast Asia?

The required travel and health documents for your Southeast Asia 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 Southeast Asia. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$186 Cheap Flights from Seoul to Southeast Asia in 2026

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Find the cheapest flights from Seoul to Southeast Asia

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One-way

Last minute

Direct

Cheap return flights

Enter your travel dates to find the best prices.

18:00 - 22:05

ICN

BKK

6h 05mdirect

00:05 - 07:40

BKK

ICN

5h 35mdirect

$355T'way Air

Thu, 23 Jul - Sun, 26 Jul

18:00 - 22:05

ICN

BKK

6h 05mdirect

00:05 - 07:40

BKK

ICN

5h 35mdirect

$361T'way Air

Thu, 23 Jul - Tue, 28 Jul

08:35 - 01:25

ICN

BKK

18h 50m

1 stop

02:50 - 14:30

BKK

ICN

9h 40m

1 stop

$368Shandong Airlines

Wed, 17 Jun - Mon, 29 Jun

14:00 - 01:50

ICN

BKK

13h 50m

1 stop

02:25 - 23:50

BKK

ICN

19h 25m

1 stop

$372Shandong Airlines

Fri, 26 Jun - Thu, 16 Jul

16:45 - 01:50

ICN

BKK

11h 05m

1 stop

02:50 - 15:45

BKK

ICN

10h 55m

1 stop

$375Shandong Airlines

Tue, 30 Jun - Tue, 7 Jul

16:35 - 23:55

ICN

DPS

32h 20m

2 stops

00:55 - 13:30

DPS

ICN

11h 35m

1 stop

$640China Eastern

Sat, 5 Sep - Thu, 10 Sep

16:45 - 08:55

ICN

DPS

17h 10m

1 stop

21:40 - 15:30

DPS

ICN

16h 50m

1 stop

$647Singapore Airlines

Sun, 2 Aug - Thu, 6 Aug

09:00 - 20:25

ICN

DPS

12h 25m

1 stop

20:00 - 09:50

DPS

ICN

12h 50m

1 stop

$648Singapore Airlines

Wed, 8 Jul - Tue, 14 Jul

15:40 - 21:45

ICN

DPS

7h 05mdirect

22:45 - 07:15

DPS

ICN

7h 30mdirect

$651Jeju Air

Tue, 16 Jun - Tue, 30 Jun

14:30 - 23:55

ICN

DPS

10h 25m

1 stop

00:30 - 14:50

DPS

ICN

13h 20m

1 stop

$655China Eastern

Sun, 6 Sep - Tue, 8 Sep

Jin Air flights from Seoul to Southeast Asia

Our best Jin Air deals on Seoul to Southeast Asia flight tickets

Jin Air

29 June

ICN19:55Incheon Intl

5h 50m

BKK23:45Bangkok Suvarnabhumi

2 July

BKK00:45Bangkok Suvarnabhumi

5h 40m

ICN08:25Incheon Intl

$445

Jin Air

29 June

ICN19:55Incheon Intl

5h 50m

BKK23:45Bangkok Suvarnabhumi

2 July

BKK00:45Bangkok Suvarnabhumi

5h 40m

ICN08:25Incheon Intl

$447

Jin Air

29 June

ICN19:55Incheon Intl

5h 50m

BKK23:45Bangkok Suvarnabhumi

1 July

BKK00:45Bangkok Suvarnabhumi

5h 40m

ICN08:25Incheon Intl

$450

T'way Air flights from Seoul to Southeast Asia

Our best T'way Air deals on Seoul to Southeast Asia flight tickets

T'way Air

23 July

ICN18:00Incheon Intl

6h 05m

BKK22:05Bangkok Suvarnabhumi

26 July

BKK00:05Bangkok Suvarnabhumi

5h 35m

ICN07:40Incheon Intl

$355

T'way Air

23 July

ICN18:00Incheon Intl

6h 05m

BKK22:05Bangkok Suvarnabhumi

28 July

BKK00:05Bangkok Suvarnabhumi

5h 35m

ICN07:40Incheon Intl

$361

T'way Air

23 July

ICN18:00Incheon Intl

6h 05m

BKK22:05Bangkok Suvarnabhumi

28 July

BKK00:05Bangkok Suvarnabhumi

5h 35m

ICN07:40Incheon Intl

$379

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Fastest return journey

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Thu 23/7

18:00-22:05

Nonstop6h 05m

Bangkok Suvarnabhumi

Sun 26/7

00:05-07:40

Nonstop5h 35m

$355

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Thu 23/7

18:00-22:05

Nonstop6h 05m

Bangkok Suvarnabhumi

Tue 28/7

00:05-07:40

Nonstop5h 35m

$361

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Wed 17/6

08:35-01:25

1 stop18h 50m

Bangkok Suvarnabhumi

Mon 29/6

02:50-14:30

1 stop9h 40m

$368

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Fri 26/6

14:00-01:50

1 stop13h 50m

Bangkok Suvarnabhumi

Thu 16/7

02:25-23:50

1 stop19h 25m

$372

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Tue 30/6

16:45-01:50

1 stop11h 05m

Bangkok Suvarnabhumi

Tue 7/7

02:50-15:45

1 stop10h 55m

$375

IncheonDenpasar

ICN - DPS

ICNDPS

Incheon Intl

Sat 5/9

16:35-23:55

2 stops32h 20m

Denpasar Bali Ngurah Rai

Thu 10/9

00:55-13:30

1 stop11h 35m

$640

IncheonDenpasar

ICN - DPS

ICNDPS

Incheon Intl

Sun 2/8

16:45-08:55

1 stop17h 10m

Denpasar Bali Ngurah Rai

Thu 6/8

21:40-15:30

1 stop16h 50m

$647

IncheonDenpasar

ICN - DPS

ICNDPS

Incheon Intl

Wed 8/7

09:00-20:25

1 stop12h 25m

Denpasar Bali Ngurah Rai

Tue 14/7

20:00-09:50

1 stop12h 50m

$648

IncheonDenpasar

ICN - DPS

ICNDPS

Incheon Intl

Tue 16/6

15:40-21:45

Nonstop7h 05m

Denpasar Bali Ngurah Rai

Tue 30/6

22:45-07:15

Nonstop7h 30m

$651

IncheonDenpasar

ICN - DPS

ICNDPS

Incheon Intl

Sun 6/9

14:30-23:55

1 stop10h 25m

Denpasar Bali Ngurah Rai

Tue 8/9

00:30-14:50

1 stop13h 20m

$655

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Seoul to Southeast Asia

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

Prices

Airlines

Other information

What is the cheapest month to fly to Southeast Asia?

The cheapest month to fly to Southeast Asia from Seoul is in September. Flight prices, which tend to average around $285, are often lower during this time because this is during the off-season. The month of June is another great option to travel to Southeast Asia, with average flight prices from Seoul averaging around $334.

What is the cheapest day to depart on your flight to Southeast Asia?

Our data shows that Friday is the least expensive day to fly to Southeast Asia. Tickets to fly out on this day can be as low as $654. On the other hand, Thursday is the most expensive day to depart from Seoul because it is more convenient for both business and leisure travellers. As a result, prices tend to be around $921.

What is the cheapest time of day to depart on your flight to Southeast Asia?

In the afternoon is the cheapest time of day to fly from Seoul to Southeast Asia when you can find flight prices for as low as $654. Flying to Southeast Asia in the afternoon is an ideal time because this is during off-peak travel hours. Flights in the morning are often more expensive, with an average ticket price of $792.

What is the cheapest Seoul to Southeast Asia flight route?

Fly from Incheon Intl to Da Nang for the best Seoul - Southeast Asia flight prices

How far in advance should I book a flight from Seoul to Southeast Asia?

You are more likely to see cheaper flights to Southeast Asia from Seoul when booking weeks ahead of your departure date. In general, you can expect to find flights to Southeast Asia for around $680 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Southeast Asia from Seoul for as low as $631 on momondo.

What cabin class options are available on Seoul to Southeast Asia flights?

There are 3 cabin classes available to choose from on Seoul to Southeast Asia 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 Southeast Asia flights?

No. A direct flight is the cheapest option for a flight between Seoul to Southeast Asia.

Cheap Seoul to Southeast Asia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seoul to Southeast Asia

Fastest flight time	7h 15m
Direct flights	Every day
Airports in Southeast Asia	295 airports

The fastest flight from Seoul to Southeast Asia takes 7h 15m

Direct flights go from Seoul to Southeast Asia every day.

There are 295 airports in Southeast Asia. From Seoul there are direct flights to Bangkok Suvarnabhumi (BKK).

Search flight deals

Frequently asked questions about flying from Seoul to Southeast Asia

When did momondo last update prices for flights from Seoul to Southeast Asia?
Prices for flights from Seoul to Southeast Asia refresh daily.
How old do you have to be to fly from Seoul to Southeast Asia?
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 Southeast Asia.
What documentation or ID do you need to fly to Southeast Asia?
The required travel and health documents for your Southeast Asia 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 Southeast Asia. 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 Southeast Asia?
momondo data reveals that the most frequently booked plane model on the route from Seoul to Southeast Asia is Boeing 737-800, representing 29.65% of all bookings. The subsequent popular models are Boeing 737 MAX 8 at 16.75%, Airbus A321-100/200 at 14.71%, and Airbus A330-300 at 6.45%.

Best airlines flying from Seoul to Southeast Asia

Compare and see reviews for airlines that fly from Seoul to Southeast Asia with momondo

Airline	Rating	Free cancellation	Price
VietJet Air	PriceFrom $255	Free cancellation	Rating 5.6 167 reviews		Search VietJet Air flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Seoul to Southeast Asia . Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo allows you to filter the results for Seoul to Southeast Asia flights to just show those with flexible booking policies.

How can momondo help me find flights from Seoul to Southeast Asia?

momondo provides multiple filters to help you find the best flight to Southeast Asia from Seoul. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are simply researching potential flights to Southeast Asia, momondo offers a useful price alert feature which will track prices for flights to Southeast Asia from Seoul and alert you when they change.