Cheap flights from Colombo Bandaranaike Intl Airport to Southeast Asia from $137

The month of October is, on average, the cheapest month to fly to Southeast Asia from Colombo Bandaranaike Intl Airport, with most prices found around $276. If you don’t want to visit Southeast Asia in October, then you should wait until November to fly from Colombo Bandaranaike Intl Airport, when ticket prices are also cheap, with an average price of $276.

The cheapest day to depart from Colombo Bandaranaike Intl Airport to Southeast Asia is on a Monday when prices can be found for as low as $433. If your travel schedule is flexible, try to avoid departing on a Wednesday because tickets tend to average around $491. These prices are subject to change though, so be sure to set up a Price Alert for flights to Southeast Asia.

In the evening is the cheapest time of day to fly from Colombo Bandaranaike Intl Airport to Southeast Asia when you can find flight prices for as low as $292. Flying to Southeast Asia in the evening 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 $444. Of course, these prices can vary depending on the time of year and what airport you fly to.

Fly from Colombo Bandaranaike Intl to Bangkok Don Mueang Intl for the best Colombo Bandaranaike Intl - Southeast Asia flight prices

You are more likely to see cheaper flights to Southeast Asia from Colombo Bandaranaike Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Southeast Asia for around $298 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Southeast Asia from Colombo Bandaranaike Intl Airport for as low as $275 on momondo.

There are 3 cabin classes available to choose from on Colombo Bandaranaike 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.

AirAsia, IndiGo, and Thai AirAsia are the most popular carriers operating from Colombo Bandaranaike Intl to Southeast Asia

Thai AirAsia, SriLankan Airlines and AirAsia are the top three most popular airlines that fly to Southeast Asia from Colombo Bandaranaike Intl Airport according to our data. Thai AirAsia is the first choice among our users, with 51% of people opting to fly with this airline when traveling to Southeast Asia. Keep in mind that there are 9 different airlines that fly to Southeast Asia on a routine basis, so you have a few additional options to choose from.

As of February 2026, 35 flights take off from Colombo Bandaranaike Intl Airport and land in Southeast Asia each day. The most common flight departure time for this route is 1:00AM, with 65% of daily flights taking off in the morning.

247 flights are operational weekly from Colombo Bandaranaike Intl Airport to Southeast Asia as of February 2026. The most popular departure day for this route is Fri, with 19% of flights per week taking off on this day.