S$ 82 Find Cheap Flights from South Korea to Southeast Asia

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KAYAK searches hundreds of travel sites at once for deals on flights to Southeast Asia

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Southeast Asia
These are the airlines KAYAK users have selected most often from within our search results for flights to Southeast Asia
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KAYAK's insights & trends for flights to Southeast Asia

Get data-powered insights and trends for flights to Southeast Asia to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest flight to Southeast Asia?

These are the best return prices found by users searching on KAYAK in the last 72 hours.

The cheapest ticket to Southeast Asia from South Korea found in the last 72 hours was to Singapore, at S$ 78 return. The most popular route is Jeju City (CJU) to Singapore (SIN) and the cheapest return airline ticket found on this route in the last 72 hours was S$ 78.

How much is a flight to Southeast Asia?

The average and cheapest price for all round-trip flights to Southeast Asia from each origin found by users searching on KAYAK in the last month.

A flight to Southeast Asia costs S$ 195 on average. The cheapest price found on KAYAK in the last 2 weeks was S$ 83 for the route Incheon Intl Airport (ICN) to Kota Kinabalu (BKI). The most popular routes on KAYAK are Seoul to Singapore which costs S$ 132 on average, and Busan to Singapore, which costs S$ 819 on average.

See prices from:

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from South Korea to Southeast Asia, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from South Korea to Southeast Asia is September, when tickets cost S$ 329 (return) on average. On the other hand, the most expensive months are January and December, when the average cost of round-trip tickets is S$ 512 and S$ 481 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Southeast Asia, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below-average price on the flight from South Korea to Southeast Asia, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.

Which is the cheapest airport to fly into in Southeast Asia?

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Southeast Asia is Manila Ninoy Aquino Intl Airport (MNL), with an average flight price of S$ 107.


Good to know

Low seasonMarch
High seasonJanuary
Cheapest flightS$ 82
Best time to beat the crowds (5% less expensive on average)
Most popular time to fly (26% more expensive on average)
Flight from Busan to Singapore

Flights from South Korea to Southeast Asia: the best tips from KAYAK users

Insights shared by verified travellers who flew the route from South Korea to Southeast Asia 
Kent ThienFlew with Korean AirICN-SGNFeb 2025
You have to prepare for the waiting time for immigration to Vietnam, it takes 3 hrs to go thru and it is easy to get mad of it
TomFlew with Asiana AirlinesICN-CGKJul 2024
We spent our long layover in the transit hotel in terminal 1 of Incheon Airport. The room was small, but was also very clean and well kept. I'd highly recommend this hotel if you have a long layover. The price wasn't bad at all.

FAQs for booking flights from South Korea to Southeast Asia

  • How does KAYAK find such low prices on flights from South Korea to Southeast Asia?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from South Korea to Southeast Asia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from South Korea to Southeast Asia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from South Korea to Southeast Asia is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from South Korea to Southeast Asia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from South Korea to Southeast Asia with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from South Korea to Southeast Asia?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from South Korea to Southeast Asia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest day to fly to Southeast Asia?

    Based on KAYAK data, the cheapest day to fly to Southeast Asia is Monday when return tickets can be as cheap as S$ 244. On the other hand, the most expensive day to fly is Thursday, when return prices are S$ 348 on average.

  • What is the cheapest time of day to fly to Southeast Asia?

    The cheapest time of day to fly to Southeast Asia is generally at night, when round-trip flights cost S$ 206 on average. Morning departures are around 8% more expensive than evening flights, on average. The most expensive time of day to fly to Southeast Asia is generally in the afternoon, which is peak travel time and where the average cost of a ticket is S$ 436.

Top 5 airlines serving from South Korea to Southeast Asia

 
See real verified KAYAK customer reviews for airlines flying to Southeast Asia. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from South Korea to Southeast Asia. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from South Korea to Southeast Asia? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.4
Korean AirOverall score based on 1091 reviews
8.5Boarding
8.1Food
8.7Crew
8.3Comfort
8.2Entertainment
Airline reviews

This flight was a superior flight in all regards. Extremely pleasant experience.

10.0 ExcellentANTHONY JAMES, May 2025ICN - SGN
Read more Korean Air reviews

This flight was a superior flight in all regards. Extremely pleasant experience.

Korean Air is unlike any other major airline I have flown with. The grace and respect that the staff has from check in to de-boarding is unmatched. The flight attendants this time were especially wonderful to my five little children. They helped us rearrange to more suitable seating, brought our children’s meals, and patiently waited for them in the aisles when they had to use the bathroom. We felt so welcome and comfortable. I really appreciate the meal voucher when our flight was delayed. I am grateful to have had such an stress-free experience.

It's good overall. Flight was packed. Inflight entertainment choices were lacking.

They were very accommodating of a dietary issue. Nice movie & tv selections. Non-stop helped get through a very long (15 hr) flight

They did an excellent job helping me with a wheelchair. I couldn’t have asked for any better help.

The boarding process for Korean airlines is very straightforward and easy. You've never met such helpful and friendly people. The food was great and the entertainment options were excellent too. My teenage boys found programs they wanted to watch while I had fun watching a full season of the Last Man - the Blind Investigator (Japanese), which my wife enjoyed too. My only complaint was that it takes a very long time to taxi at ICN (20 minutes) and the pilot had to hold at the gate for 10 minutes after our scheduled departure time, which meant we got to Seattle 27 minutes late. Luckily I had a long enough connection to make my next flight, but just barely.

Best service I’ve ever had Flight attendants are nicely dressed and look very professional

My second flight wasn't better than the first one. And this is 14 hours trip, crew came out only to offer food and the choices was poor. This food choices are good for Asian people but not for westerners. The breakfast kind thing was a corn sausage really disgusting. The air-conditioned blower really blow high and cold, turn out on my arrival to feel seek, that makes the trip uncomfortable. The crew didn't not really come out during the trip to offer drinks or snacks. No fruits available. Very poor service

I loved everything, I was just a little confused on my bag allowance. When I checked in it said I was allowed 2 check in bags, but when I got there they said I was only allowed 1 so I had to pay an additional 200 dollars! Other then that everything was great! I would love to use your Airlines again when I fly out to Manila again in late May, however I want to be able to have 2 bags included this time lol 😆

An International flight from Cebu to Incheon was delayed the night before without a proper explanation. Same thing happened from Incheon to Cebu in the first leg. I will not fly Korean again. And I will ensure Delta their US partner hears about it. This is a routine by Korean to delay flights from and to Cebu via Incheon.

The beefsteak on the lunch menu was excellent! I usually do not eat airplane food. I loved it.

Flight was too cold. I wore a regular cotton tee and it wasn’t enough. It was a night time flight so I would have thought a blanket would be provided to passengers. A 4 hour flight and no options for a meal? I flew Asiana the next day from Seoul to Manilla. Same duration, 4 hours. They give everyone a pillow and blanket and serve a meal. Why is United so cheap and holding back meals and amenities? Also, they promote too much gay stuff and DEI in their advertisements. Please be mindful of other beliefs and don’t shove your gay ideology down my throat.

Staff always with a smile and very helpful with my mom who has mobility issues.

It was all perfect and very pleasant for such long flights

The seats felt very small. We were supplied with pillows and blankets, which was nice. Lots of noise from the bathroom, plus exterior noise. Made it hard to hear the entertainment system, even using my own noise-cancelling headphones. The food was really bad. I generally request a vegetarian meal and one was supplied, but the pasta was cold and hard and there was nothing pleasant about it. Two meals were served on this flight; one was a repeat of the meal I had had on the flight immediately preceding this one, which was bad enough I didn't even try it. Drinks were very limited. All I wanted was water, and on a 10.5 hour flight, I was given 3 cups of about 3 ounces each.

The seats felt very small. We were supplied with pillows and blankets, which was nice. Lots of noise from the bathroom, plus exterior noise. Made it hard to hear the entertainment system, even using my own noise-cancelling headphones. The food was really bad. I generally request a vegetarian meal and one was supplied, but the pasta was cold and hard and there was nothing pleasant about it. Drinks were very limited. All I wanted was water, and on a 4 hour flight, I was given 2 cups of about 3 ounces each.

We took business class, It was comfortable and I was able to sleep.

Everything was perfect. A flight attendant even brought me snacks after I declined food due to my desire to force myself to follow the destination time zone.

For the most part, it was an enjoyable experience. It's the 2nd half of the journey was a bit uncomfortable. It was on a noticable smaller plane compared to the previous one.

Only process that my luggage didn’t make it to my destination because of short connection but I understand

The usual excellent experience with Singapore Airlines. The airplane was on time and actually early to Haneda Airport. The onboarding experience was pleasant with no delays, perhaps owing to the fact that the flight was not full. Nevertheless, the air crew were their usual outstanding standards in serving the passengers.

Good service and food. For buying items on flight should be preordered as they don’t keep much stock on board.

We were not given option for meals since they ran out of the other option but good thing the remaining options tasted great.

Very good flight from Boarding to landing -efficient and comfortable with decent entertainment options

Excelent service and plenty of food and drinks during the flight. Flight crew very attentive to our needs. Leg room between rows are very disappointing.

The seat in economy class and legroom in Singapore airline are narrower than Korean airlines! I don’t have that comforting feeling flying with Singapore air as in the past!

So happy I flew with Singapore Airlines. The customer service is top notch. I am terrified of flying and the staff made me feel so at ease. Will only fly Singapore internationally moving forward.

Everything was great keep up the good work 😁, can't ask for more.

Check in was easy through self-check-in kiosks just like domestic flights. Staff onboard were fantastic. Some "book the cook" good options weren't great, others really good. Entertainment options a bit limited to what I've experienced on Qantas. Overall a good flight though, especially for the price.

Overall, very good. The food was better than expected with the exception of the pork and potatoes dinner at the end of the flight. My family all selected that dish and did not set it. I tried a bite also and it was honestly terrible. Also, it would be helpful to know when the snacks in the back of the plane are available.

Forthright communication to the customers regarding services offered and any fees involved.

Scoot is a no frills budget airline. Do not expect a legacy airline experience.

I have taken more than 50 flights in the past year and this is the worst onboard experience that I've come across. There's always a risk with budget airlines and their creative views of customer service. Having bought a standard seat, we boarded at the assigned seat - we naturally couldn't choose ourselves as that would be extra cost. After take-off, the person in the row in front leans back their seat. As a frequent flyer, I believe this is their right, so I try to lean my seat back as well to have the same space available. However, my standard seat could not lean back, as the row behind was an exit row. As I had paid for a standard seat, not a less space than standard, I moved to the completely free row behind me. This was not allowed, as due to extra legroom, this would cost extra. Subsequently spent the next 30 mins discussing this scenario with the crew. I have no issues with budget airlines and additional charges, but if I pay for a standard seat, I want a standard seat, not one with less space. As you do not offer me a discount for the less space, do not try and charge me a premium, when I find a free seat with more space. It works both ways Scoot.

Finishes were quite worn, including our very scratched up seatback. No entertainment available, and the WiFi (even for “ScootHub”) was very slow. Crew were somewhat friendly.

Food & lower the prices. Look at Air Asia food look better & affordable

Not a frequent user of their website booking. Booked my check-in baggage and only realized that I did not book my check in baggage for return flight. The receipt was not clear in identifying that as well. Was charged exorbitantly at check in counter. Bad taste for sure when it is a business trip and not leisure trip. Baggage was delayed for more than an hour at belt back in SG.

Boarding took forever. It's also weird that we paid more (for preferred seats) to get on the plane last. Inflight WiFi never worked the entire trip. I want my money back.

The cosmetic condition was pretty run down. The carpets were badly worn out. Even the paint on the wings was chipped and peeled! Looks like they are running these 787s to the ground..

WiFi didn’t work on both sectors so made killing time harder - planes clean modern and good flight crew - would do again if WiFi works

6hrs fly they dont give you a glass of water from seoul to singapore need to buy drink and food plus they charge for bag on international fly is always Free 1 bag from seoul to singapore is Not a local fly you are traveling true asia same story from singapore to Bali no water drink after payment for bag drink cost more the regular airline Well never use this company again we use regular company like Delta korea japan China and even scoot parent company Singapore Air

ok flight, but charged for everything. water, food, baggage. no free water available, I had to plead to give me water to take medicine.

Need to consider about zero entertainment services and lack of flight information!

I can't board the 2nd flight due to the last 1st flight. In the 1st flight check-in, I can't board due to the stupid problem of K-ETA visa. The booking system and the flight company should inform the customer a few days earlier. This is the worse experience in my life. I won't use KAYAK and the airline anymore. My friends were also surprised about this stupid situation. I won't use KAYAK and T'way anymore.

I can't board the flight due to the K-ETA problem. You should inform the customer clearly a few days before the flight. I can't cancel/change the flight now. This is the worst experience in my life. I also never hear about this kind of bad experience. I won't use the booking system and the flight company anymore.

Book cheap flights from South Korea to Southeast Asia

Recent return flight deals

 
These are the cheapest return flights to Southeast Asia found on KAYAK in the last 72 hours.
4-7Fri
directJeju Air
6h 30mPUS-SIN
8-7Tue
directJeju Air
6h 35mSIN-PUS
S$ 209
6-7Sun
directJeju Air
6h 30mPUS-SIN
7-7Mon
directJeju Air
6h 35mSIN-PUS
S$ 210
10-7Thu
directT'way Air
6h 45mICN-SIN
15-7Tue
directT'way Air
6h 40mSIN-ICN
S$ 211
3-7Thu
directT'way Air
6h 50mICN-SIN
8-7Tue
directT'way Air
6h 40mSIN-ICN
S$ 212
10-7Thu
directT'way Air
6h 45mICN-SIN
16-7Wed
directT'way Air
6h 30mSIN-ICN
S$ 214
4-9Thu
1 stopVietnam Airlines
25h 55mPUS-SIN
9-9Tue
1 stopVietnam Airlines
17h 00mSIN-PUS
S$ 227
23-8Sat
1 stopVietnam Airlines
26h 50mICN-SIN
1-9Mon
1 stopVietnam Airlines
26h 30mSIN-ICN
S$ 229
16-7Wed
directScoot
5h 55mCJU-SIN
19-7Sat
directScoot
6h 05mSIN-CJU
S$ 311
12-8Tue
directScoot
5h 55mCJU-SIN
16-8Sat
directScoot
6h 05mSIN-CJU
S$ 312
6-7Sun
directKorean Air
6h 25mICN-SIN
7-7Mon
directKorean Air
6h 35mSIN-ICN
S$ 404

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Recent one-way flight deals

 
Only flying one-way? Below are some of the best deals for one-way flights to Southeast Asia found on KAYAK in the last 72 hours.
15-7Tue
directJeju Air
6h 30mPUS-SIN
S$ 82
6-12Sat
1 stopCebu Pacific
17h 15mICN-SIN
S$ 83
9-7Wed
directJeju Air
6h 30mPUS-SIN
S$ 83
10-7Thu
directT'way Air
6h 45mICN-SIN
S$ 90
3-7Thu
directT'way Air
6h 50mICN-SIN
S$ 91
13-8Wed
directScoot
6h 30mICN-SIN
S$ 105
18-8Mon
directScoot
6h 30mICN-SIN
S$ 110
15-11Sat
directSingapore Airlines
6h 50mPUS-SIN
S$ 259
17-6Tue
1 stopKorean Air
22h 55mTAE-SIN
S$ 486
12-8Tue
1 stopKorean Air
22h 55mTAE-SIN
S$ 507

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Last minute flights to Southeast Asia

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights to Southeast Asia that are departing in the next 10 days.
13-6Fri
directT'way Air
6h 45mICN-SIN
23-6Mon
directT'way Air
6h 40mSIN-ICN
S$ 215
13-6Fri
directT'way Air
6h 45mICN-SIN
23-6Mon
directT'way Air
6h 40mSIN-ICN
S$ 216
17-6Tue
directJeju Air
6h 30mPUS-SIN
25-6Wed
directJeju Air
6h 35mSIN-PUS
S$ 250
17-6Tue
directJeju Air
6h 30mPUS-SIN
19-6Thu
directJeju Air
6h 35mSIN-PUS
S$ 251
17-6Tue
directSingapore Airlines
6h 30mPUS-SIN
23-6Mon
directSingapore Airlines
6h 15mSIN-PUS
S$ 530
17-6Tue
directSingapore Airlines
6h 30mPUS-SIN
21-6Sat
directSingapore Airlines
6h 15mSIN-PUS
S$ 577
13-6Fri
directScoot
5h 55mCJU-SIN
15-6Sun
directScoot
6h 05mSIN-CJU
S$ 821
16-6Mon
multi-stopKorean Air
15h 55mCJJ-SIN
18-6Wed
multi-stopKorean Air
14h 20mSIN-CJJ
S$ 919
15-6Sun
directScoot
5h 55mCJU-SIN
17-6Tue
directScoot
6h 05mSIN-CJU
S$ 938
16-6Mon
multi-stopKorean Air
22h 55mTAE-SIN
20-6Fri
multi-stopKorean Air
18h 25mSIN-TAE
S$ 1,249

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Everything you need to know for your flight to Southeast Asia

Cabin class types available on flights to Southeast Asia

Cabin classes available on flights to Southeast Asia. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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