Are there nonstop flights from Patna (PAT) to Navi Mumbai (NMI)?

Yes. IndiGo fly this route. Flight time is about 2h 12m.

What is the fastest connection from Patna (PAT) to Navi Mumbai (NMI)?

via Bhopal ≈ 2h 44m, via Ranchi ≈ 2h 54m, via Lucknow ≈ 2h 54m (estimated flying time, excluding layovers).

Jay Prakash Narayan Airport (PAT) to Navi Mumbai International Airport (NMI)・1,438 km

Nonstop flights available (1 airline). Flight time about 2h 12m. Nonstop return flights also operate.

11 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.