Cheap flights from Incheon Intl Airport to Southeast Asia from $114

The cheapest month to fly to Southeast Asia from Incheon Intl Airport is in May. Flight prices, which tend to average around $370, are often lower during this time because this is during the off-season. The month of March is another great option to travel to Southeast Asia, with average flight prices from Incheon Intl Airport averaging around $486.

Our data shows that Friday is the least expensive day to fly to Southeast Asia. Tickets to fly out on this day can be as low as $653. On the other hand, Sunday is the most expensive day to depart from Incheon Intl Airport because it is more convenient for both business and leisure travellers. As a result, prices tend to be around $759.

In the afternoon 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 $653. Flying to Southeast Asia in the afternoon is an ideal time because this is during off-peak travel hours. Flights in the morning are often more expensive, with an average ticket price of $756.

Fly from Incheon Intl to Manila Ninoy Aquino 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 $621 when searching weeks before you fly. 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 $429 on momondo.

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

47 flights are operational daily from Incheon Intl Airport to Southeast Asia as of February 2026. The most popular departure time for this route is 18:00, with 47% of flights per day taking off in the evening.

As of February 2026, there are 335 flights per week flying from Incheon Intl Airport to Southeast Asia. The most common day of the week flights depart is Wed, with 15% of flights taking off on this day.