Are there nonstop flights from Chicago (ORD) to Flint (FNT)?

Yes. American Eagle (airline brand), United Express fly this route. Flight time is about 55m.

Chicago → Flint

Chicago O'Hare International Airport (ORD) to Bishop International Airport (FNT)・359 km

Nonstop flights available (2 airlines). Flight time about 55m. Nonstop return flights also operate.

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