Are there nonstop flights from Buka Island (BUA) to Kokopo (RAB)?

Yes. Air Niugini fly this route. Flight time is about 50m.

Buka Island → Kokopo

Buka Airport (BUA) to Tokua Airport (RAB)・281 km

Nonstop flights available (1 airline). Flight time about 50m. Nonstop return flights also operate.

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