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

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

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

42 flights are operational daily from Seoul to Southeast Asia as of April 2026. The most popular departure time for this route is 18:00, with 45% of flights per day taking off in the evening.

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

As of April 2026, there are 298 flights per week flying from Seoul to Southeast Asia. The most common day of the week flights depart is Mon, 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.

$166 Cheap Flights from Seoul to Southeast Asia in 2026

1 adult

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.

22:15 - 01:25

ICN

BKK

29h 10m

1 stop

02:25 - 23:50

BKK

ICN

19h 25m

1 stop

$347Shandong Airlines

Thu, 4 Jun - Wed, 10 Jun

18:00 - 22:05

ICN

BKK

6h 05mdirect

00:05 - 07:40

BKK

ICN

5h 35mdirect

$357T'way Air

Mon, 12 Oct - Wed, 14 Oct

18:00 - 22:05

ICN

BKK

6h 05mdirect

00:05 - 07:40

BKK

ICN

5h 35mdirect

$359T'way Air

Mon, 12 Oct - Thu, 22 Oct

23:40 - 01:25

ICN

BKK

27h 45m

1 stop

02:25 - 21:15

BKK

ICN

16h 50m

1 stop

$361Shandong Airlines

Thu, 7 May - Fri, 15 May

23:40 - 01:25

ICN

BKK

27h 45m

1 stop

02:50 - 15:45

BKK

ICN

10h 55m

1 stop

$363Shandong Airlines

Sat, 9 May - Sun, 17 May

23:40 - 01:25

ICN

BKK

27h 45m

1 stop

02:50 - 15:45

BKK

ICN

10h 55m

1 stop

$364Shandong Airlines

Mon, 18 May - Mon, 15 Jun

00:10 - 18:30

ICN

DPS

19h 20m

1 stop

19:20 - 21:15

DPS

ICN

24h 55m

1 stop

$506Malaysia Airlines

Thu, 8 Oct - Wed, 21 Oct

11:00 - 15:30

ICN

DPS

29h 30m

1 stop

19:20 - 21:15

DPS

ICN

24h 55m

1 stop

$509Malaysia Airlines

Wed, 14 Oct - Tue, 20 Oct

15:40 - 21:45

ICN

DPS

7h 05mdirect

22:45 - 07:15

DPS

ICN

7h 30mdirect

$512Jeju Air

Wed, 6 May - Wed, 13 May

15:40 - 21:45

ICN

DPS

7h 05mdirect

22:45 - 07:15

DPS

ICN

7h 30mdirect

$513Jeju Air

Wed, 6 May - Wed, 13 May

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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 Oct

ICN18:00Incheon Intl

6h 05m

BKK22:05Bangkok Suvarnabhumi

14 Oct

BKK00:05Bangkok Suvarnabhumi

5h 35m

ICN07:40Incheon Intl

$357

T'way Air

12 Oct

ICN18:00Incheon Intl

6h 05m

BKK22:05Bangkok Suvarnabhumi

15 Oct

BKK00:05Bangkok Suvarnabhumi

5h 35m

ICN07:40Incheon Intl

$359

T'way Air

31 Aug

ICN18:00Incheon Intl

6h 05m

BKK22:05Bangkok Suvarnabhumi

3 Sept

BKK00:05Bangkok Suvarnabhumi

5h 35m

ICN07:40Incheon Intl

$405

AIR PREMIA flights from Seoul to Southeast Asia

Our best AIR PREMIA deals on Seoul to Southeast Asia flight tickets

AIR PREMIA

26 Apr

ICN17:15Incheon Intl

5h 55m

BKK21:10Bangkok Suvarnabhumi

1 May

BKK22:45Bangkok Suvarnabhumi

5h 30m

ICN06:15Incheon Intl

$379

AIR PREMIA

26 Apr

ICN17:15Incheon Intl

5h 55m

BKK21:10Bangkok Suvarnabhumi

3 May

BKK22:45Bangkok Suvarnabhumi

5h 30m

ICN06:15Incheon Intl

$382

AIR PREMIA

26 Apr

ICN17:15Incheon Intl

5h 55m

BKK21:10Bangkok Suvarnabhumi

1 May

BKK22:45Bangkok Suvarnabhumi

5h 30m

ICN06:15Incheon Intl

$393

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Thu 4/6

22:15-01:25

1 stop29h 10m

Bangkok Suvarnabhumi

Wed 10/6

02:25-23:50

1 stop19h 25m

$347

Fastest return journey

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Mon 12/10

18:00-22:05

Nonstop6h 05m

Bangkok Suvarnabhumi

Wed 14/10

00:05-07:40

Nonstop5h 35m

$357

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Mon 12/10

18:00-22:05

Nonstop6h 05m

Bangkok Suvarnabhumi

Thu 22/10

00:05-07:40

Nonstop5h 35m

$359

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Thu 7/5

23:40-01:25

1 stop27h 45m

Bangkok Suvarnabhumi

Fri 15/5

02:25-21:15

1 stop16h 50m

$361

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Sat 9/5

23:40-01:25

1 stop27h 45m

Bangkok Suvarnabhumi

Sun 17/5

02:50-15:45

1 stop10h 55m

$363

IncheonBangkok

ICN - BKK

ICNBKK

Incheon Intl

Mon 18/5

23:40-01:25

1 stop27h 45m

Bangkok Suvarnabhumi

Mon 15/6

02:50-15:45

1 stop10h 55m

$364

IncheonDenpasar

ICN - DPS

ICNDPS

Incheon Intl

Thu 8/10

00:10-18:30

1 stop19h 20m

Denpasar Bali Ngurah Rai

Wed 21/10

19:20-21:15

1 stop24h 55m

$506

IncheonDenpasar

ICN - DPS

ICNDPS

Incheon Intl

Wed 14/10

11:00-15:30

1 stop29h 30m

Denpasar Bali Ngurah Rai

Tue 20/10

19:20-21:15

1 stop24h 55m

$509

IncheonDenpasar

ICN - DPS

ICNDPS

Incheon Intl

Wed 6/5

15:40-21:45

Nonstop7h 05m

Denpasar Bali Ngurah Rai

Wed 13/5

22:45-07:15

Nonstop7h 30m

$512

IncheonDenpasar

ICN - DPS

ICNDPS

Incheon Intl

Wed 6/5

15:40-21:45

Nonstop7h 05m

Denpasar Bali Ngurah Rai

Wed 13/5

22:45-07:15

Nonstop7h 30m

$513

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 $522, 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 $604.

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 $648. 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 $912.

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 $648. 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 $784.

What is the cheapest Seoul to Southeast Asia flight route?

Fly from Incheon Intl to Ho Chi Minh City 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 $607 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 $428 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 32.16% of all bookings. The subsequent popular models are Airbus A321-100/200 at 15.87%, Boeing 737 MAX 8 at 12.17%, and Airbus A330-300 at 7.15%.

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 $252	Free cancellation	Rating 5.6 165 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.