Are there nonstop flights from Bangkok (BKK) to Narathiwat Airport (NAW)?

Yes. Thai AirAsia fly this route. Flight time is about 1h 27m.

Bangkok → Narathiwat Airport

Suvarnabhumi Airport (BKK) to Narathiwat Airport (NAW)・804 km

Nonstop flights available (1 airline). Flight time about 1h 27m. Nonstop return flights also operate.

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