Are there nonstop flights from Khost (KHT) to Kabul (KBL)?

Yes. Kam Air fly this route. Flight time is about 41m.

Khost → Kabul

Khost International Airport (KHT) to Kabul International Airport (KBL)・153 km

Nonstop flights available (1 airline). Flight time about 41m. Nonstop return flights also operate.

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