Distance From Duncan Airport to Netaji Subhash Chandra Bose International Airport

The distance from Duncan Airport () to Netaji Subhash Chandra Bose International Airport (CCU) is 7483 miles or 12043 kilometers or 6498 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 Helena ( United States ) to Kolkata ( India )?

A one-way nonstop (direct) flight between Helena and Kolkata takes around 17 hours 12 minutes.

Estimated flight time from Duncan Airport, Helena, United States to Netaji Subhash Chandra Bose International Airport, Kolkata, India is 17 hours 12 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

Kilometers		12043 km
Statute Miles		7483 miles
Nautical Miles		6498 nm
Avg. Time of Flight		17 hours 12 minutes

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

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

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

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

Time Difference Between the Airports • - CCU

Time difference between Helena (United States) and Kolkata (India) is 12 Hours 30 Minutes.
Kolkata time is 12 Hours 30 Minutes ahead of Helena.

Location	Local Time
Helena (United States)	2025-01-28, 13:17:13 MST
Kolkata (India)	2025-01-29, 01:47:13 IST

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

Duncan Airport ( / MT06) Helena, United States

Destination

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