Are there nonstop flights from Shonai (SYO) to Tokyo (NRT)?

Yes. Jetstar Japan fly this route. Flight time is about 54m.

Shonai → Tokyo

Shonai Airport (SYO) to Narita International Airport (NRT)・343 km

Nonstop flights available (1 airline). Flight time about 54m. Nonstop return flights also operate.

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