Need help booking?
Unpublished phone-only deals available
BUF to CCU: distance & flight time
Buffalo (Buffalo Niagara International Airport) → Kolkata (Netaji Subhash Chandra Bose International Airport)
7,832 mi
12,604 km · 6,806 nm
15h 49m
estimated nonstop flight time
+9.5h
time difference · heading north
See live BUF→CCU fares Phone-only fares on this route — call free
Flight time details
7,832 miles nonstop takes roughly 15h 49m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 9.5-hour time gain when reading arrival times on your ticket.
The two airports
- BUF — Buffalo Niagara International Airport · Buffalo, 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 BUF
- IAG · Niagara Falls International Airport16 mi away
- YYZ · Lester B. Pearson International Airport68 mi away
- YCM · Niagara District Airport28 mi away
- DKK · Chautauqua County-Dunkirk Airport41 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 BUF from CCU?
The flight distance from Buffalo (BUF) to Kolkata (CCU) is 7,832 miles (12,604 km, 6,806 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from BUF to CCU?
A nonstop flight takes about 15h 49m 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 Buffalo and Kolkata?
Kolkata is 9.5 hours ahead of Buffalo.
What is the cheapest way to fly from BUF to CCU?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on BUF–CCU that never appear on search engines, with no booking fees.