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Cheap flights from South Korea to Southeast Asia from S$ 78

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 11-3. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — BKK
29 Mar — 5 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from South Korea to Southeast Asia

Enter your travel dates to find the best prices.

Cheapest flights from South Korea to Southeast Asia
Explore the most affordable flight options available from South Korea to Southeast Asia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 27 February 2026.

Fri 5-611:00
PUS
-
SIN
1 stop28h 50m
Vietnam Airlines
Mon 8-615:50
SIN
-
PUS
1 stop14h 15m
Vietnam Airlines
Deal found 24-2S$ 236
Wed 24-611:00
PUS
-
SIN
1 stop28h 50m
Vietnam Airlines
Sun 28-613:05
SIN
-
PUS
1 stop17h 00m
Vietnam Airlines
Deal found 24-2S$ 239
Mon 13-411:00
PUS
-
SIN
1 stop25h 55m
Vietnam Airlines
Wed 22-413:05
SIN
-
PUS
1 stop17h 00m
Vietnam Airlines
Deal found 25-2S$ 240
Tue 13-1011:00
PUS
-
SIN
1 stop25h 55m
Vietnam Airlines
Fri 16-1013:05
SIN
-
PUS
1 stop17h 00m
Vietnam Airlines
Deal found 27-2S$ 241
Mon 11-511:00
PUS
-
SIN
1 stop28h 50m
Vietnam Airlines
Mon 1-615:50
SIN
-
PUS
1 stop14h 15m
Vietnam Airlines
Deal found 25-2S$ 245
Thu 15-1011:00
PUS
-
SIN
1 stop25h 55m
Vietnam Airlines
Sun 18-1013:05
SIN
-
PUS
1 stop17h 00m
Vietnam Airlines
Deal found 27-2S$ 246
Sun 31-511:00
PUS
-
SIN
1 stop25h 55m
Vietnam Airlines
Thu 4-615:50
SIN
-
PUS
1 stop14h 15m
Vietnam Airlines
Deal found 27-2S$ 250
Mon 13-410:00
PUS
-
SIN
1 stop11h 00m
Vietnam Airlines
Mon 20-421:00
SIN
-
PUS
1 stop9h 50m
Vietnam Airlines
Deal found 27-2S$ 256
Mon 4-511:00
PUS
-
SIN
1 stop25h 55m
Vietnam Airlines
Fri 8-513:05
SIN
-
PUS
1 stop17h 00m
Vietnam Airlines
Deal found 26-2S$ 258
Thu 5-319:45
CJU
-
SIN
Nonstop6h 20m
T'way Air
Mon 9-302:30
SIN
-
CJU
Nonstop6h 00m
T'way Air
Deal found 23-2S$ 279
Wed 22-411:30
ICN
-
SIN
Nonstop6h 30m
Scoot
Sat 25-402:15
SIN
-
ICN
Nonstop6h 30m
Scoot
Deal found 25-2S$ 291
Wed 3-618:05
ICN
-
SIN
1 stop18h 50m
Vietnam Airlines
Wed 10-613:05
SIN
-
ICN
1 stop15h 45m
Vietnam Airlines
Deal found 26-2S$ 292

Find flight deals from South Korea to Southeast Asia

Keep the following information in mind while searching for South Korea to Southeast Asia flight deals. Data was last updated 27 February 2026.

Round-trip from

S$ 236

One-way from

S$ 78

Popular in

January

Cheapest in

September

Average price

S$ 355
Vietnam Airlines
  • Vietnam Airlines
  • 5-6-8-6
  • 2 total stops
  • 43h 05m total
  • South Korea to Southeast Asia
Search Deals
Jeju Air
  • Jeju Air
  • 11-3
  • 1 total stop
  • 17h 50m total
  • South Korea to Southeast Asia
Search Deals
Highest demand for flights based on searches. 20% potential increase in price (S$ 93 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (S$ 11 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from South Korea to Southeast Asia 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 200,618 searches. Data last updated 27 February 2026.
Use the filters below to find and compare flights from South Korea to Southeast Asia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BusanSingapore

PUS - SIN

PUSSIN

Busan Gimhae

Mon 29-6

11:00-14:50

1 stop28h 50m

Singapore Changi

Wed 1-7

13:05-07:05

1 stop17h 00m

S$ 269

BusanSingapore

PUS - SIN

PUSSIN

Busan Gimhae

Thu 9-4

10:00-17:25

1 stop8h 25m

Singapore Changi

Thu 16-4

21:00-07:50

1 stop9h 50m

S$ 282

IncheonSingapore

ICN - SIN

ICNSIN

Incheon Intl

Sat 14-3

18:20-00:10

Nonstop6h 50m

Singapore Changi

Mon 16-3

01:10-08:40

Nonstop6h 30m

S$ 302

IncheonSingapore

ICN - SIN

ICNSIN

Incheon Intl

Wed 20-5

18:05-11:55

1 stop18h 50m

Singapore Changi

Sun 24-5

13:10-06:40

1 stop16h 30m

S$ 305

IncheonSingapore

ICN - SIN

ICNSIN

Incheon Intl

Wed 15-4

17:55-20:00

1 stop27h 05m

Singapore Changi

Sun 19-4

13:05-16:35

1 stop26h 30m

S$ 305

IncheonSingapore

ICN - SIN

ICNSIN

Incheon Intl

Thu 12-3

22:05-00:05

1 stop27h 00m

Singapore Changi

Tue 17-3

01:10-22:50

1 stop20h 40m

S$ 306

IncheonSingapore

ICN - SIN

ICNSIN

Incheon Intl

Thu 23-4

18:15-23:50

Nonstop6h 35m

Singapore Changi

Sat 25-4

00:50-08:40

Nonstop6h 50m

S$ 306

IncheonSingapore

ICN - SIN

ICNSIN

Incheon Intl

Sat 25-4

18:15-23:50

Nonstop6h 35m

Singapore Changi

Mon 27-4

00:50-08:40

Nonstop6h 50m

S$ 307

IncheonSingapore

ICN - SIN

ICNSIN

Incheon Intl

Tue 14-4

10:05-11:55

1 stop26h 50m

Singapore Changi

Sat 18-4

18:25-16:25

1 stop21h 00m

S$ 313

Jeju CitySingapore

CJU - SIN

CJUSIN

Jeju City

Tue 21-7

19:40-00:45

Nonstop6h 05m

Singapore Changi

Thu 23-7

02:15-09:30

Nonstop6h 15m

S$ 334

Flights are sorted by cheapest return flights first.

Deals found on 26-2

Showing 1-10 of 60 resultsSorted by cheapest first
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6

Best time to book a flight from South Korea to Southeast Asia

Have a flexible travel schedule? Discover the best time to fly to Southeast Asia from South Korea 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 South Korea to Southeast Asia

What is the cheapest month to book a flight from South Korea to Southeast Asia?

Currently, October is the cheapest month in which you can book a flight from South Korea to Southeast Asia (average of S$ 102). Flying from South Korea to Southeast Asia in February is currently the most expensive (average of S$ 178). 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 KR to YJX?

Find hourly flight availability from South Korea to Southeast Asia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 27 February 2026.

It’s typically best to fly out from South Korea to Southeast Asia at midday. Doing so could potentially save you 22% on the flight price compared to flying in the morning, which is usually more expensive.

Weekly flight availability from South Korea to Southeast Asia

Explore weekly flight availability from South Korea to Southeast Asia. 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 27 February 2026.

The most flights from KR0 to zzYJX are scheduled on a Wednesday (47 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (29 on average).

Reviews of airlines servicing Southeast Asia

Get insights into the airlines that provide service to Southeast Asia. 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 Southeast Asia. Reviews last updated 27 February 2026.
Read through reviews of airlines operating flights from South Korea to Southeast Asia, such as Korean Air, Singapore Airlines, andJeju Air. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very Good
1,195 reviews
Check prices

Entertainment

8.2

Crew

8.7

Overall

8.4

Food

8.1

Boarding

8.5

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Korean Air
8.4
Very Good
1,195 reviews
Korean Air
8.4
Very Good
1,195 reviews
Check prices

Entertainment

8.2

Crew

8.7

Overall

8.4

Food

8.1

Boarding

8.5

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Singapore Airlines
8.2
Very Good
1,465 reviews
Korean Air
8.4
Very Good
1,195 reviews
Check prices

Entertainment

8.2

Crew

8.7

Overall

8.4

Food

8.1

Boarding

8.5

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Jeju Air
7.6
Good
35 reviews
Korean Air
8.4
Very Good
1,195 reviews
Check prices

Entertainment

8.2

Crew

8.7

Overall

8.4

Food

8.1

Boarding

8.5

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Scoot
6.7
Okay
319 reviews
Korean Air
8.4
Very Good
1,195 reviews
Check prices

Entertainment

8.2

Crew

8.7

Overall

8.4

Food

8.1

Boarding

8.5

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

Related info for your journey

Find useful and relevant information for your journey from South Korea to Southeast Asia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from South Korea to Southeast Asia?

    For as low as S$ 302, Vietnam Airlines can have you in Southeast Asia from South Korea in 6h 50m. There are 4622 km between South Korea and Southeast Asia. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from South Korea to Southeast Asia one-way?

    For one-way options, check prices for Jeju Air. According to our data, you can fly for as low as S$ 70. Users have also found prices from S$ 84 and S$ 86 on T'way Air and AirAsia X, respectively.

  • Can I find deals for flights from South Korea to Southeast Asia that include hotel bookings?

    Yes. In addition to deals on South Korea to Southeast Asia flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from South Korea to Southeast Asia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from South Korea to Southeast Asia.

  • Can I find deals for business class flights from South Korea to Southeast Asia?

    Yes. Cheapflights offers flight deals from South Korea to Southeast Asia 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 South Korea to Southeast Asia?

    Currently, October is the cheapest month in which you can book a flight from South Korea to Southeast Asia (average of S$ 102). Flying from South Korea to Southeast Asia in February is currently the most expensive (average of S$ 178). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 5 airlines flying from South Korea to Southeast Asia

Discover the top 5 airlines that operate flights from South Korea to Southeast Asia. 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 200,618 searches. Data last updated 27 February 2026.
AirlineCheapestAverageFlexibilityOn-time
ScootCheapestS$ 154AverageS$ 669FlexibilityNo cancel feeOn-timeN/A
Search Scoot flights
T'way AirCheapestS$ 215AverageS$ 336FlexibilityNo cancel feeOn-time88%
Search T'way Air flights
Jeju AirCheapestS$ 238AverageS$ 511FlexibilityNo cancel feeOn-timeN/A
Search Jeju Air flights
Singapore AirlinesCheapestS$ 380AverageS$ 483FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
Korean AirCheapestS$ 391AverageS$ 663FlexibilityNo cancel feeOn-time81%
Search Korean Air flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from South Korea to Southeast Asia?

Cheapflights makes it easy to find South Korea to Southeast Asia flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from South Korea to Southeast Asia?

Cheapflights helps you find that perfect flight to Southeast Asia from South Korea by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from South Korea to Southeast Asia with no change fees?

Yes! Cheapflights helps users easily find flights from South Korea to Southeast Asia with no change fees.

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