Are there nonstop flights from Puerto Iguazu (IGR) to Resistencia (RES)?

Yes. Aerolíneas Argentinas fly this route. Flight time is about 1h 5m.

Puerto Iguazu → Resistencia

Cataratas Del Iguazú International Airport (IGR) to Resistencia International Airport (RES)・494 km

Nonstop flights available (1 airline). Flight time about 1h 5m. Nonstop return flights also operate.

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