The observed direct connection between Suvarnabhumi Airport (BKK) and Netaji Subhash Chandra Bose International Airport (CCU) covers approximately 1,017 mi. The estimated flight time is around 2h 35m. Bhutan Airlines, IndiGo, Thai Airways and Thai Vietjet Air have been observed on this connection in the available route data.
Frequently asked questions about this route
How far is Bangkok from Kolkata by air?
The great-circle distance between Suvarnabhumi Airport and Netaji Subhash Chandra Bose International Airport is approximately 1,017 mi.
How long is the flight from Bangkok to Kolkata?
Based on the distance, the estimated flight time is about 2h 35m. This is an estimate, not a schedule.
Is there a direct connection from Bangkok to Kolkata?
Yes, a direct connection between BKK and CCU has been observed in our route data.
Which airlines have been observed on this route?
In the available route data: Bhutan Airlines, IndiGo, Thai Airways and Thai Vietjet Air.
How often is there a flight from Bangkok to Kolkata?
On average around 1 flights a day, measured over twelve months (October 2025 to September 2026) in the flight archive, with 162 observed flights. Mainly Thai Airways, Bhutan Airlines, IndiGo. That is an observation, not a timetable.
What is the current time difference between Bangkok and Kolkata?
Kolkata is currently 1 hour 30 min behind Bangkok.
Where this data comes from
The route data comes from the flight archive (ADS-B, adsb.lol): which connections actually flew over the last twelve full months and who flew them, combined with our own airport, runway, and airline datasets. It is reference data about observed routes - not a current timetable and no claim about bookability.
The frequency and aircraft on this page come from the flight archive (ADS-B, 12 months, October 2025 to September 2026), summarized per route per month. We do not see every flight, so it is a floor, not a count.