Cheap flights from Kolkata to Southeast Asia from ₹ 5,753

In general, August 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 ₹ 3,961. If you aren’t able to travel during the month of August, then book flights to Southeast Asia from Kolkata during July instead. Flights to Southeast Asia in July, while not as cheap as those in August, still average around ₹ 4,904.

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 ₹ 22,243. The most expensive day to fly to Southeast Asia is Wednesday, with ticket prices averaging around ₹ 26,303.

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 ₹ 20,420. 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 ₹ 28,169 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 Suvarnabhumi 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 ₹ 19,348 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 ₹ 16,692 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.

Air India Express, Akasa Air, and Thai AirAsia 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 37% 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 17 per day as of June 2026. The most frequent departure time is 02:00, with 50% of daily flights leaving in the evening.

123 flights are operational weekly from Kolkata to Southeast Asia as of June 2026. The most popular departure day for this route is Wed, with 17% of flights per week taking off on this day.