Are there nonstop flights from Ushant (OUI) to Brest (BES)?

Yes. Finist'air fly this route. Flight time is about 33m.

Ushant → Brest

Ouessant Airport (OUI) to Brest Bretagne airport (BES)・48 km

Nonstop flights available (1 airline). Flight time about 33m. Nonstop return flights also operate.

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