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Cheap flights from South Korea to Southeast Asia from S$ 92

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 27-11. Fares are subject to change and may not be available on all flights or dates of travel.
ICN — BKK
29 nov. — 6 déc.1
1 adult
1 adult, Economy, 0 bags

Find 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 30 octobre 2025.

mar. 25-1115:30ICN - SIN
Nonstop6h 55mT'way Air
mer. 31-1223:00SIN - ICN
Nonstop6h 35mT'way Air
Deal found 27-10S$ 246
lun. 1-1215:30ICN - SIN
Nonstop6h 55mT'way Air
mer. 31-1223:00SIN - ICN
Nonstop6h 35mT'way Air
Deal found 28-10S$ 282
ven. 31-1022:10ICN - SIN
1 stop14h 00mMultiple Airlines
lun. 3-1101:10SIN - ICN
Nonstop6h 30mMultiple Airlines
Deal found 29-10S$ 290
mar. 11-1118:20ICN - SIN
Nonstop6h 50mMultiple Airlines
dim. 16-1104:40SIN - ICN
1 stop15h 20mMultiple Airlines
Deal found 29-10S$ 291
jeu. 30-1018:20ICN - SIN
Nonstop6h 50mJeju Air
mar. 4-1101:10SIN - ICN
Nonstop6h 30mJeju Air
Deal found 27-10S$ 295
mer. 29-1022:10ICN - SIN
1 stop30h 00mMultiple Airlines
lun. 3-1101:10SIN - ICN
Nonstop6h 30mMultiple Airlines
Deal found 28-10S$ 297
mar. 4-1118:20ICN - SIN
Nonstop6h 50mJeju Air
mer. 5-1101:10SIN - ICN
Nonstop6h 30mJeju Air
Deal found 29-10S$ 298
sam. 1-1122:45ICN - SIN
1 stop13h 25mRoyal Brunei Airlines
sam. 8-1112:10SIN - ICN
1 stop8h 35mRoyal Brunei Airlines
Deal found 29-10S$ 299
mer. 19-1118:20ICN - SIN
Nonstop6h 50mMultiple Airlines
dim. 23-1104:40SIN - ICN
1 stop15h 20mMultiple Airlines
Deal found 29-10S$ 300
sam. 8-1117:45PUS - SIN
Nonstop6h 40mMultiple Airlines
mer. 12-1111:15SIN - PUS
1 stop18h 35mMultiple Airlines
Deal found 29-10S$ 300
ven. 21-1118:20ICN - SIN
Nonstop6h 50mMultiple Airlines
dim. 23-1104:40SIN - ICN
1 stop15h 20mMultiple Airlines
Deal found 28-10S$ 303
mer. 19-1118:20ICN - SIN
Nonstop6h 50mMultiple Airlines
ven. 9-113:25SIN - ICN
1 stop26h 05mMultiple Airlines
Deal found 28-10S$ 306

Cheap 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 30 octobre 2025.

Round-trip from

S$ 224

One-way from

S$ 92

Popular in

January

Cheapest in

September

Average price

S$ 381
7-3-11-3
  • 7-3-11-3
  • 2 total stops
  • 18h 40m total
  • South Korea to Southeast Asia
Search Deals
Jeju Air
  • Jeju Air
  • 27-11
  • Nonstop
  • 6h 40m total
  • South Korea to Southeast Asia
Search Deals
Highest demand for flights based on searches. 27% potential increase in price (S$ 153 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (S$ 20 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2025
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 30 octobre 2025.
Use the filters below to find and compare flights from South Korea to Southeast Asia that are best for you.

Fly from

South Korea

Fly to

Southeast Asia

Route

Depart

Return

Price

IncheonSingapore

ICN - SIN

ICNSIN

Incheon Intl

jeu. 4-12

15:30-21:25

Nonstop6h 55m

Singapore Changi

jeu. 1-1

23:00-06:35

Nonstop6h 35m

S$ 282

Jeju CitySingapore

CJU - SIN

CJUSIN

Jeju City

jeu. 29-1

19:45-01:30

Nonstop6h 45m

Singapore Changi

dim. 1-2

02:30-09:30

Nonstop6h 00m

S$ 295

Jeju CitySingapore

CJU - SIN

CJUSIN

Jeju City

ven. 23-1

08:55-14:15

Nonstop6h 20m

Singapore Changi

sam. 24-1

00:25-07:20

Nonstop5h 55m

S$ 311

Jeju CitySingapore

CJU - SIN

CJUSIN

Jeju City

mer. 4-2

08:55-14:15

Nonstop6h 20m

Singapore Changi

sam. 7-2

00:25-07:20

Nonstop5h 55m

S$ 313

IncheonSingapore

ICN - SIN

ICNSIN

Incheon Intl

sam. 22-11

18:20-00:10

Nonstop6h 50m

Singapore Changi

lun. 24-11

01:10-08:40

Nonstop6h 30m

S$ 332

IncheonSingapore

ICN - SIN

ICNSIN

Incheon Intl

ven. 21-11

18:20-00:10

Nonstop6h 50m

Singapore Changi

lun. 24-11

01:10-08:40

Nonstop6h 30m

S$ 332

Jeju CitySingapore

CJU - SIN

CJUSIN

Jeju City

mar. 3-2

19:45-01:30

Nonstop6h 45m

Singapore Changi

ven. 6-2

02:30-09:30

Nonstop6h 00m

S$ 333

Jeju CitySingapore

CJU - SIN

CJUSIN

Jeju City

mer. 14-1

13:50-11:40

3 stops22h 50m

Singapore Changi

sam. 17-1

12:40-12:50

2 stops23h 10m

S$ 364

Jeju CitySingapore

CJU - SIN

CJUSIN

Jeju City

ven. 23-1

13:50-17:15

1 stop28h 25m

Singapore Changi

dim. 25-1

23:00-12:50

1 stop12h 50m

S$ 364

Jeju CitySingapore

CJU - SIN

CJUSIN

Jeju City

ven. 27-2

08:55-14:15

Nonstop6h 20m

Singapore Changi

sam. 28-2

00:25-07:20

Nonstop5h 55m

S$ 364

Flights are sorted by cheapest return flights first.

Deals found on 28-10

Showing 1-10 of 60 results
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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, June is the cheapest month in which you can book a flight from South Korea to Southeast Asia (average of S$ 132). Flying from South Korea to Southeast Asia in January is currently the most expensive (average of S$ 208). 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 30 octobre 2025.

It’s typically best to fly out from South Korea to Southeast Asia in the evening. Doing so could potentially save you 21% on the flight price compared to flying at midday, which is usually more expensive.

What is the cheapest day to fly from South Korea to Southeast Asia?

Use this chart to determine the cheapest time to fly return from South Korea to Southeast Asia. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their South Korea to Southeast Asia flight should consider departing on Thursday afternoons when fares are most often at their lowest. Thursday at midday flights should be avoided if possible as fares are typically the most expensive at this time.

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 30 octobre 2025.

The most flights from KR0 to zzYJX are scheduled on a Monday (42 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (39 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 30 octobre 2025.
Read through reviews of airlines operating flights from South Korea to Southeast Asia, such as Korean Air, Asiana Airlines, andSingapore Airlines. 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
1,155 reviews
Check prices

Crew

8.7

Overall

8.4

Food

8.1

Comfort

8.3

Boarding

8.5

Entertainment

8.2

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
1,155 reviews
Korean Air
8.4
Very Good
1,155 reviews
Check prices

Crew

8.7

Overall

8.4

Food

8.1

Comfort

8.3

Boarding

8.5

Entertainment

8.2

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!!
Asiana Airlines
8.2
Very Good
483 reviews
Korean Air
8.4
Very Good
1,155 reviews
Check prices

Crew

8.7

Overall

8.4

Food

8.1

Comfort

8.3

Boarding

8.5

Entertainment

8.2

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
8.1
Very Good
1,388 reviews
Korean Air
8.4
Very Good
1,155 reviews
Check prices

Crew

8.7

Overall

8.4

Food

8.1

Comfort

8.3

Boarding

8.5

Entertainment

8.2

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
309 reviews
Korean Air
8.4
Very Good
1,155 reviews
Check prices

Crew

8.7

Overall

8.4

Food

8.1

Comfort

8.3

Boarding

8.5

Entertainment

8.2

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$ 311, T'way Air can have you in Southeast Asia from South Korea in 6h 20m. There are 4273 km between South Korea and Southeast Asia. All flights are typically direct.

  • 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$ 92. Users have also found prices from S$ 110 and S$ 120 on Vietnam Airlines and T'way Air, 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, June is the cheapest month in which you can book a flight from South Korea to Southeast Asia (average of S$ 132). Flying from South Korea to Southeast Asia in January is currently the most expensive (average of S$ 208). 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

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Alternative routes for South Korea to Southeast Asia

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from South Korea to Southeast Asia

Discover the top 6 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 30 octobre 2025.
AirlineCheapestAverageFlexibilityOn-time
ScootCheapestS$ 158AverageS$ 686FlexibilityNo cancel feeOn-timeN/A
Search Scoot flights
T'way AirCheapestS$ 239AverageS$ 354FlexibilityNo cancel feeOn-time88%
Search T'way Air flights
Jeju AirCheapestS$ 303AverageS$ 473FlexibilityNo cancel feeOn-timeN/A
Search Jeju Air flights
Asiana AirlinesCheapestS$ 389AverageS$ 492FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
Korean AirCheapestS$ 401AverageS$ 832FlexibilityNo cancel feeOn-time81%
Search Korean Air flights
Singapore AirlinesCheapestS$ 417AverageS$ 657FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights

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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!

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