Are there nonstop flights from Ghaziabad (HDO) to Navi Mumbai (NMI)?

Yes. IndiGo fly this route. Flight time is about 1h 52m.

What is the fastest connection from Ghaziabad (HDO) to Navi Mumbai (NMI)?

via Varanasi ≈ 3h 13m, via Vasco da Gama ≈ 3h 17m, via Jammu ≈ 3h 24m (estimated flying time, excluding layovers).

Hindon Airport / Hindon Air Force Station (HDO) to Navi Mumbai International Airport (NMI)・1,166 km

Nonstop flights available (1 airline). Flight time about 1h 52m. Nonstop return flights also operate.

6 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.