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

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

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

AIR PREMIA, Thai Vietjet Air, and Vietnam Airlines are the most popular carriers operating from Seoul to Southeast Asia

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

As of March 2026, there are 363 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.

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.

$102 Cheap Flights from Seoul to Southeast Asia in 2026

1 adult

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Seoul to Southeast Asia

Round-trip

One-way

Last minute

Direct

Cheap return flights

Enter your travel dates to find the best prices.

17:05 - 21:25

ICN

BKK

6h 20mdirect

22:25 - 06:20

BKK

ICN

5h 55mdirect

$193Eastar Jet

Sat, 21 Mar - Thu, 26 Mar

17:05 - 21:25

ICN

BKK

6h 20mdirect

22:25 - 06:20

BKK

ICN

5h 55mdirect

$195Eastar Jet

Wed, 18 Mar - Tue, 24 Mar

17:05 - 21:25

ICN

BKK

6h 20mdirect

22:25 - 06:20

BKK

ICN

5h 55mdirect

$196Eastar Jet

Mon, 16 Mar - Tue, 24 Mar

17:05 - 21:25

ICN

BKK

6h 20mdirect

22:25 - 06:20

BKK

ICN

5h 55mdirect

$223Eastar Jet

Sat, 21 Mar - Wed, 25 Mar

18:00 - 22:05

ICN

BKK

6h 05mdirect

00:05 - 07:40

BKK

ICN

5h 35mdirect

$230T'way Air

Tue, 12 May - Thu, 14 May

18:00 - 22:05

ICN

BKK

6h 05mdirect

00:05 - 07:40

BKK

ICN

5h 35mdirect

$232T'way Air

Tue, 12 May - Thu, 14 May

19:55 - 23:45

ICN

BKK

5h 50mdirect

00:45 - 08:25

BKK

ICN

5h 40mdirect

$239Jin Air

Mon, 29 Jun - Tue, 30 Jun

23:00 - 13:05

ICN

DPS

15h 05m

2 stops

16:55 - 07:00

DPS

ICN

13h 05m

1 stop

$348Multiple Airlines

Sat, 18 Apr - Sat, 25 Apr

10:35 - 15:00

ICN

DPS

29h 25m

1 stop

16:00 - 16:25

DPS

ICN

23h 25m

1 stop

$354Vietnam Airlines

Wed, 22 Apr - Mon, 25 May

17:55 - 15:00

ICN

DPS

22h 05m

1 stop

16:00 - 06:40

DPS

ICN

13h 40m

1 stop

$356Vietnam Airlines

Mon, 11 May - Tue, 9 Jun

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

12 May

ICN18:00Incheon Intl

6h 05m

BKK22:05Bangkok Suvarnabhumi

13 May

BKK00:05Bangkok Suvarnabhumi

5h 35m

ICN07:40Incheon Intl

$230

T'way Air

12 May

ICN18:00Incheon Intl

6h 05m

BKK22:05Bangkok Suvarnabhumi

14 May

BKK00:05Bangkok Suvarnabhumi

5h 35m

ICN07:40Incheon Intl

$232

T'way Air

19 May

ICN18:00Incheon Intl

6h 05m

BKK22:05Bangkok Suvarnabhumi

21 May

BKK00:05Bangkok Suvarnabhumi

5h 35m

ICN07:40Incheon Intl

$233

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

30 June

BKK00:45Bangkok Suvarnabhumi

5h 40m

ICN08:25Incheon Intl

$239

Jin Air

29 June

ICN19:55Incheon Intl

5h 50m

BKK23:45Bangkok Suvarnabhumi

1 July

BKK00:45Bangkok Suvarnabhumi

5h 40m

ICN08:25Incheon Intl

$240

Jin Air

12 Mar

ICN16:45Incheon Intl

6h 25m

BKK21:10Bangkok Suvarnabhumi

27 Apr

BKK00:55Bangkok Suvarnabhumi

5h 35m

ICN08:30Incheon Intl

$264

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Sat 21/3

17:05-21:25

Nonstop6h 20m

Bangkok Suvarnabhumi

Thu 26/3

22:25-06:20

Nonstop5h 55m

$193

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Wed 18/3

17:05-21:25

Nonstop6h 20m

Bangkok Suvarnabhumi

Tue 24/3

22:25-06:20

Nonstop5h 55m

$195

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Mon 16/3

17:05-21:25

Nonstop6h 20m

Bangkok Suvarnabhumi

Tue 24/3

22:25-06:20

Nonstop5h 55m

$196

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Sat 21/3

17:05-21:25

Nonstop6h 20m

Bangkok Suvarnabhumi

Wed 25/3

22:25-06:20

Nonstop5h 55m

$223

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Tue 12/5

18:00-22:05

Nonstop6h 05m

Bangkok Suvarnabhumi

Thu 14/5

00:05-07:40

Nonstop5h 35m

$230

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Tue 12/5

18:00-22:05

Nonstop6h 05m

Bangkok Suvarnabhumi

Thu 14/5

00:05-07:40

Nonstop5h 35m

$232

Fastest return journey

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Mon 29/6

19:55-23:45

Nonstop5h 50m

Bangkok Suvarnabhumi

Tue 30/6

00:45-08:25

Nonstop5h 40m

$239

IncheonDenpasar

ICN - DPS

ICNDPS

Incheon Intl

Sat 18/4

23:00-13:05

2 stops15h 05m

Denpasar Bali Ngurah Rai

Sat 25/4

16:55-07:00

1 stop13h 05m

$348

IncheonDenpasar

ICN - DPS

ICNDPS

Incheon Intl

Wed 22/4

10:35-15:00

1 stop29h 25m

Denpasar Bali Ngurah Rai

Mon 25/5

16:00-16:25

1 stop23h 25m

$354

IncheonDenpasar

ICN - DPS

ICNDPS

Incheon Intl

Mon 11/5

17:55-15:00

1 stop22h 05m

Denpasar Bali Ngurah Rai

Tue 9/6

16:00-06:40

1 stop13h 40m

$356

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 May. Flight prices, which tend to average around $532, are often lower during this time because this is during the off-season. The month of July is another great option to travel to Southeast Asia, with average flight prices from Seoul averaging around $609.

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 $660. On the other hand, Sunday 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 $768.

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 $660. 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 $765.

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 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 $629 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 $441 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

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 32.58% of all bookings. The subsequent popular models are Airbus A321-100/200 at 18.38%, Boeing 737 MAX 8 at 8.28%, and Airbus A320-100/200 at 7.68%.

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 $257	Free cancellation	Rating 5.6 163 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.