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BTM to CCU: distance & flight time
Butte (Bert Mooney Airport) → Kolkata (Netaji Subhash Chandra Bose International Airport)
7,518 mi
12,098 km · 6,533 nm
15h 12m
estimated nonstop flight time
+11.5h
time difference · heading north
See live BTM→CCU fares Phone-only fares on this route — call free
Flight time details
7,518 miles nonstop takes roughly 15h 12m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 11.5-hour time gain when reading arrival times on your ticket.
The two airports
- BTM — Bert Mooney Airport · Butte, 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 BTM
- HLN · Helena Regional Airport51 mi away
- BZN · Gallatin Field66 mi away
- SMN · Lemhi County Airport88 mi away
- LVM · Mission Field100 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 BTM from CCU?
The flight distance from Butte (BTM) to Kolkata (CCU) is 7,518 miles (12,098 km, 6,533 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from BTM to CCU?
A nonstop flight takes about 15h 12m 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 Butte and Kolkata?
Kolkata is 11.5 hours ahead of Butte.
What is the cheapest way to fly from BTM to CCU?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on BTM–CCU that never appear on search engines, with no booking fees.