Distance From Netaji Subhash Chandra Bose International Airport to Buffalo Niagara International Airport, CCU - BUF Distance

The distance from Netaji Subhash Chandra Bose International Airport (CCU) to Buffalo Niagara International Airport (BUF) is 7832 miles or 12604 kilometers or 6801 nautical miles.

The distance shown below is direct flight distance between airports. Straight-line distance does not account for the surface between the two points. It is the distance a bird or airplane would travel between the two points when flying above the surface. The straight line distance is the direct route between two points, regardless of whether or not there are roads that connect them.

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How long does it take to travel from Kolkata ( India ) to Buffalo ( United States )?

A one-way nonstop (direct) flight between Kolkata and Buffalo takes around 18 hours 0 minutes.

Estimated flight time from Netaji Subhash Chandra Bose International Airport, Kolkata, India to Buffalo Niagara International Airport, Buffalo, United States is 18 hours 0 minutes under avarage conditions. Your actual flying time may vary depending on wind direction/speed or weather conditions. This calculation does not include the departure and landing times of the aircraft. In addition, it does not cover the person identity check, ticket check-in and baggage collection times at the airport.

Travel Distance Between the Airports • CCU - BUF

Kilometers		12604 km
Statute Miles		7832 miles
Nautical Miles		6801 nm
Avg. Time of Flight		18 hours 0 minutes

Netaji Subhash Chandra Bose International Airport to Buffalo Niagara International Airport Flight Route Map - CCU to BUF Flight Path

Location of Netaji Subhash Chandra Bose International Airport & Buffalo Niagara International Airport is given below.
Click the map to view Kolkata to Buffalo nonstop flight path and travel direction.

Click to see flight route on Google Map between Kolkata, India and Buffalo, United States. .

Nonstop flight route between Kolkata, India and Buffalo, United States.

Time Difference Between the Airports • CCU - BUF

Time difference between Kolkata (India) and Buffalo (United States) is 9 Hours 30 Minutes.
Buffalo time is 9 Hours 30 Minutes behind Kolkata.

Location	Local Time
Kolkata (India)	2026-04-29, 19:48:56 IST
Buffalo (United States)	2026-04-29, 10:18:56 EDT

Why should you arrive 3 hours before international flight? Flyers who are traveling to an international destination should arrive at the airport earlier than domestic flyers. This is because international flights can have additional check-in requirements, like passport verification, that need to be completed before you receive your boarding pass.

Origin

Netaji Subhash Chandra Bose International Airport (CCU / VECC) Kolkata, India

Destination

Buffalo Niagara International Airport (BUF / KBUF) Buffalo, United States