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OSH to CCU: distance & flight time
Oshkosh (Wittman Regional Airport) → Kolkata (Netaji Subhash Chandra Bose International Airport)
7,829 mi
12,599 km · 6,803 nm
15h 49m
estimated nonstop flight time
+10.5h
time difference · heading north
See live OSH→CCU fares Phone-only fares on this route — call free
Flight time details
7,829 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 10.5-hour time gain when reading arrival times on your ticket.
The two airports
- OSH — Wittman Regional Airport · Oshkosh, 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 OSH
- FLD · Fond du Lac County Airport15 mi away
- ATW · Appleton International Airport19 mi away
- SBM · Sheboygan County Memorial Airport38 mi away
- GRB · Austin Straubel International 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 OSH from CCU?
The flight distance from Oshkosh (OSH) to Kolkata (CCU) is 7,829 miles (12,599 km, 6,803 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OSH 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 Oshkosh and Kolkata?
Kolkata is 10.5 hours ahead of Oshkosh.
What is the cheapest way to fly from OSH to CCU?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OSH–CCU that never appear on search engines, with no booking fees.