Cheap flights from Kolkata to Southeast Asia from ₹ 7,261

In general, February is the cheapest month to fly from Kolkata to Southeast Asia. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around ₹ 21,305. If you aren’t able to travel during the month of February, then book flights to Southeast Asia from Kolkata during January instead. Flights to Southeast Asia in January, while not as cheap as those in February, still average around ₹ 23,789.

The cheapest day to depart from Kolkata to Southeast Asia is on a Monday. Travellers who choose to depart for Southeast Asia on a Monday will often find tickets for as low as ₹ 21,660. The most expensive day to fly to Southeast Asia is Wednesday, with ticket prices averaging around ₹ 32,336.

According to our data, the cheapest time of day to fly to Southeast Asia is in the evening. momondo users have found flights departing from Kolkata to Southeast Asia in the evening for as low as ₹ 21,821. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are ₹ 28,556 on average. Flights to Southeast Asia from Kolkata in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

Fly from Kolkata Netaji S. Chandra to Bangkok Don Mueang Intl for the best Kolkata Netaji S. Chandra - Southeast Asia flight prices

You are more likely to see cheaper flights to Southeast Asia from Kolkata when booking weeks ahead of your departure date. In general, you can expect to find flights to Southeast Asia for around ₹ 20,462 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 Kolkata for as low as ₹ 17,484 on momondo.

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

IndiGo, Thai Vietjet Air, and Air India Express are the most popular carriers operating from Kolkata Netaji S. Chandra to Southeast Asia

IndiGo, Thai AirAsia and Thai Lion Air are the top three most popular airlines that fly to Southeast Asia from Kolkata according to our data. IndiGo is the first choice among our users, with 28% of people opting to fly with this airline when travelling to Southeast Asia. Keep in mind that there are 12 different airlines that fly to Southeast Asia on a routine basis, so you have a few additional options to choose from.

The number of flights available between Kolkata and Southeast Asia is 18 per day as of August 2026. The most frequent departure time is 23:00, with 53% of daily flights leaving in the evening.

126 flights are operational weekly from Kolkata to Southeast Asia as of August 2026. The most popular departure day for this route is Mon, with 16% of flights per week taking off on this day.