Are there nonstop flights from Gachsaran (GCH) to Tehran (THR)?

Yes. Mahan Air, Pars Air fly this route. Flight time is about 1h 12m.

Gachsaran → Tehran

Gachsaran Airport (GCH) to Mehrabad International Airport (THR)・597 km

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

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