Are there nonstop flights from Kolkata (CCU) to Vasco da Gama (GOI)?

Yes. IndiGo, Air India Express fly this route. Flight time is about 2h 32m.

What is the fastest connection from Kolkata (CCU) to Vasco da Gama (GOI)?

via Hyderabad ≈ 3h 3m, via Raipur ≈ 3h 4m, via Pune ≈ 3h 16m (estimated flying time, excluding layovers).

from 15,000 ANA miles (economy, one way, based on the published award charts).

Netaji Subhash Chandra Bose International Airport (CCU) to Goa Dabolim International Airport (GOI)・1,735 km

Nonstop flights available (2 airlines). Flight time about 2h 32m. Nonstop return flights also operate.

With milesANA 15,000 miles+ (via BOM)Economy, one way, estimate. Tap a connection for miles by cabin.

15 one-stop options, sorted by estimated flying time. Tap one to see the airlines on each leg and booking links.

Times are estimated from distance. Check schedules, frequency and availability with the airline or a booking site.