Distance From Netaji Subhash Chandra Bose International Airport to Ontario International Airport, CCU - ONT Distance

The distance from Netaji Subhash Chandra Bose International Airport (CCU) to Ontario International Airport (ONT) is 8161 miles or 13133 kilometers or 7087 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 Ontario ( United States )?

A one-way nonstop (direct) flight between Kolkata and Ontario takes around 18 hours 45 minutes.

Estimated flight time from Netaji Subhash Chandra Bose International Airport, Kolkata, India to Ontario International Airport, Ontario, United States is 18 hours 45 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 - ONT

Kilometers		13133 km
Statute Miles		8161 miles
Nautical Miles		7087 nm
Avg. Time of Flight		18 hours 45 minutes

Netaji Subhash Chandra Bose International Airport to Ontario International Airport Flight Route Map - CCU to ONT Flight Path

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

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

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

Time Difference Between the Airports • CCU - ONT

Time difference between Kolkata (India) and Ontario (United States) is 12 Hours 30 Minutes.
Ontario time is 12 Hours 30 Minutes behind Kolkata.

Location	Local Time
Kolkata (India)	2025-03-19, 06:21:40 IST
Ontario (United States)	2025-03-18, 17:51:40 PDT

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

Ontario International Airport (ONT / KONT) Ontario, United States