Are there nonstop flights from Islamabad (ISB) to Gilgit (GIL)?

Yes. Pakistan International Airlines fly this route. Flight time is about 51m.

Islamabad → Gilgit

Islamabad International Airport (ISB) to Gilgit Airport (GIL)・297 km

Nonstop flights available (1 airline). Flight time about 51m. Nonstop return flights also operate.

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