Cheap flights from Bangkok to Kolkata from ₹ 8,507

If you are unable to visit Kolkata during the month of August, then departing from Bangkok during the month July is also very affordable. Most momondo users find prices during this month for around ₹ 9,074.

The cheapest day to depart on your flight to Kolkata is on a Friday when prices can be found for as low as ₹ 19,573. This is often the case because there is less demand to fly during this day of the week. When flying out on a Tuesday, the most expensive travel day of the week, you can expect to see flight prices from Bangkok to Kolkata for around ₹ 26,370.

According to our data, the cheapest time of day to fly to Kolkata is in the evening. momondo users have found flights departing from Bangkok to Kolkata in the evening for as low as ₹ 10,587. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the morning is when there is more demand to fly to Kolkata, so prices are often more expensive at around ₹ 32,410 per ticket.

Fly from Bangkok Suvarnabhumi to Kolkata Netaji S. Chandra for the best Bangkok - Kolkata Netaji S. Chandra flight prices

Historically, on average around 13% of flights between Bangkok and Kolkata have experienced a delay on any given week. The average delay length over the past 12 months has been 112 minutes.

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights departing at night have, in the past, seen delays more frequently in comparison.

Monday is statistically the day of the week that experiences the fewest delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

According to our data, Bhutan Airlines have had the fewest delays on this route over the last 12 months, with about 5% of their flights experiencing any sort of delay.

The number of flights available between Bangkok and Kolkata is 5 per day as of April 2026. The most frequent departure time is 23:00, with 71% of daily flights leaving in the evening.

As of April 2026, there are 39 flights per week flying from Bangkok to Kolkata. The most common day of the week flights depart is Mon, with 15% of flights taking off on this day.