Are there nonstop flights from Rundu (NDU) to Windhoek (ERS)?

Yes. Westair Aviation fly this route. Flight time is about 1h 11m.

Rundu → Windhoek

Rundu Airport (NDU) to Eros Airport (ERS)・586 km

Nonstop flights available (1 airline). Flight time about 1h 11m. Nonstop return flights also operate.

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