Are there nonstop flights from Maratua (RTU) to Tarakan (TRK)?

Yes. Susi Air fly this route. Flight time is about 42m.

Maratua → Tarakan

Maratua Airport (RTU) to Juwata International Airport / Suharnoko Harbani AFB (TRK)・170 km

Nonstop flights available (1 airline). Flight time about 42m. Nonstop return flights also operate.

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