Are there nonstop flights from Kirkwall (KOI) to Stronsay (SOY)?

Yes. Loganair fly this route. Flight time is about 32m.

Kirkwall → Stronsay

Kirkwall Airport (KOI) to Stronsay Airport (SOY)・27 km

Nonstop flights available (1 airline). Flight time about 32m. Nonstop return flights also operate.

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