Cheap flights from Incheon Intl Airport to Southeast Asia from $98

The month of September is, on average, the cheapest month to fly to Southeast Asia from Incheon Intl Airport, with most prices found around $208. If you don’t want to visit Southeast Asia in September, then you should wait until March to fly from Incheon Intl Airport, when ticket prices are also cheap, with an average price of $246.

The cheapest day to depart from Incheon Intl Airport to Southeast Asia is on a Tuesday when prices can be found for as low as $310. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around $379. These prices are subject to change though, so be sure to set up a Price Alert for flights to Southeast Asia.

At noon is the cheapest time of day to fly from Incheon Intl Airport to Southeast Asia when you can find flight prices for as low as $302. Flying to Southeast Asia at noon is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the morning because they tend to be around $344. Of course, these prices can vary depending on the time of year and what airport you fly to.

Fly from Incheon Intl to Angeles City Clark Intl for the best Incheon Intl - Southeast Asia flight prices

You are more likely to see cheaper flights to Southeast Asia from Incheon Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Southeast Asia for around $244 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Southeast Asia from Incheon Intl Airport for as low as $206 on momondo.

There are 3 cabin classes available to choose from on Incheon Intl Airport to Southeast Asia flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Eastar Jet, Jin Air, and Jeju Air are the most popular carriers operating from Incheon Intl to Southeast Asia

Asiana Airlines, Jeju Air and Cebu Pacific are the top three most popular airlines that fly to Southeast Asia from Incheon Intl Airport according to our data. Asiana Airlines is the first choice among our users, with 36% of people opting to fly with this airline when traveling to Southeast Asia. Keep in mind that there are 29 different airlines that fly to Southeast Asia on a routine basis, so you have a few additional options to choose from.

As of June 2026, there are 105 flights per day flying from Incheon Intl Airport to Southeast Asia. The most common time of day flights depart is 6:00PM, with 50% of flights taking off in the evening.

As of June 2026, there are 736 flights per week flying from Incheon Intl Airport to Southeast Asia. The most common day of the week flights depart is Sat, with 16% of flights taking off on this day.