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ATY to CCU: distance & flight time
Watertown (Watertown Regional Airport) → Kolkata (Netaji Subhash Chandra Bose International Airport)
7,755 mi
12,480 km · 6,739 nm
15h 40m
estimated nonstop flight time
+10.5h
time difference · heading north
See live ATY→CCU fares Phone-only fares on this route — call free
Flight time details
7,755 miles nonstop takes roughly 15h 40m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 10.5-hour time gain when reading arrival times on your ticket.
The two airports
- ATY — Watertown Regional Airport · Watertown, United States
- CCU — Netaji Subhash Chandra Bose International Airport · Kolkata, India
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near ATY
- HON · Huron Regional Airport64 mi away
- ABR · Aberdeen Regional Airport72 mi away
- MHE · Mitchell Municipal Airport90 mi away
- FSD · Joe Foss Field Airport94 mi away
Near CCU
- JSR · Jessore Airport58 mi away
- RDP · Kazi Nazrul Islam Airport102 mi away
- IRD · Ishurdi Airport110 mi away
- BZL · Barisal Airport119 mi away
Frequently asked questions
How far is ATY from CCU?
The flight distance from Watertown (ATY) to Kolkata (CCU) is 7,755 miles (12,480 km, 6,739 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ATY to CCU?
A nonstop flight takes about 15h 40m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between Watertown and Kolkata?
Kolkata is 10.5 hours ahead of Watertown.
What is the cheapest way to fly from ATY to CCU?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ATY–CCU that never appear on search engines, with no booking fees.