Find Cheap Flights from South Korea to Southeast Asia – Compare and Save

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KAYAK's insights & trends for flights to Southeast Asia

Get data-powered insights and trends into 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?

The cheapest ticket to Southeast Asia from South Korea found in the last 5 days was to Singapore, at RM 471 return. The most popular route is Incheon Intl Airport (ICN) to Angeles City (CRK) and the cheapest return ticket found on this route in the last 5 days was RM 1,229.

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

The cheapest month for flights from South Korea to Southeast Asia is March, when tickets cost RM 425 (return) on average. On the other hand, the most expensive months are November and January, when the average cost of round-trip tickets is RM 768 and RM 751 respectively.

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

The cheapest time of day to fly to Southeast Asia is generally in the morning, when retur flights cost RM 1,233 on average. Morning departures are around 15% cheaper than evening flights, on average. The most expensive time of day to fly to Southeast Asia is generally at night, which is peak travel time and where the average cost of a ticket is RM 1,658.

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

To get a below-average price on the flight from South Korea to Southeast Asia, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 5 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 Kota Kinabalu Airport (BKI), with an average flight price of RM 623.

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Good to know

Low season

June
Best time to beat the crowds but there is an average 1% increase in price.
Most popular time to fly (10% more expensive on average)

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 
ShaotingFlew with Singapore Airlines-Oct 2026
Have breakfast at the airport and use the toilet before boarding. Set off for the airport early if you are taking taxi as traffic is heavily congested even before 6am. Else if you can manage take the train instead as total duration will end up similar.
Kent ThienFlew with Korean Air-Feb 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 Airlines-Jul 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 Wednesday when return tickets can be as cheap as RM 639. On the other hand, the most expensive day to fly is Tuesday, when return prices are RM 1,638 on average.

Reviews of the top airline flying from South Korea to Southeast Asia

 
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.
6.8
AirAsiaOverall score based on 236 reviews
7.5Crew
7.0Boarding
6.8Comfort
6.4Food
5.9Entertainment
Airline reviews

Friendly staff but otherwise a typical no frills airline. The sets are extremely cramped

6.0 GoodPaul, Feb 2026
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Friendly staff but otherwise a typical no frills airline. The sets are extremely cramped

Flight delayed for one hour last minute change the gate this is something new? Wak all over the airport bit fast bording to flight smd miss my meeting in kuaa lumpur is the year end meeting no internet in flught which is not good Anyway overall is good thanks to the crew on duty Un able to check in on line and choose the seat thatbi wanted and in flight meal too unable to purchase rrally sad Should get priority seat in next booking

We recently flew with AirAsia and encountered several issues. Our flight was delayed by over an hour, and both boarding and takeoff were postponed without any prior notification. Although we eventually realized there was a delay on our own, the crew did inform us afterward. To make up for lost time, the pilot took off at high speed, resulting in some turbulent moments that were quite scary. Despite these challenges, the cabin crew did an excellent job managing the situation and easing the inconvenience. Overall, while the delays and turbulence made for a stressful experience, I appreciated the crew’s efforts to keep us as comfortable as possible.

It was good. The FACE check in at KLIA2 was not working.

The flight delay... but bus from the airport be on time

Great. Very satisfied with a direct flight from Penang back to HK international. Stewards in the cabin were very friendly and helpful. Would not hesitate to fly with Air Asia in the future.

No complaints. Made it on time with a minimum of hassle. Some complementary soft drinks would have been nice tho.

Actually my flight from Hing Kong to Kuala Lumpe has been cancelled and I don’t see the refund of my airfare. Thats my comment of your Company and please follow up。

The crew is good, but the flight delayed and there is two passengers keep talking during the flight

100% dislike due to last minutes flight cancellations and terrible customer service experience. Do notice us early at least 24 hours before departure time.

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