None actually. I've never taken a connecting flight ever.
Wait, how? Is Minneapolis a large enough hub that it has direct fligths to everywhere you need to go? That would be surprising tbh
MSP
is actually a pretty large hub but it's more I've never flown anywhere else that also isn't one. As an adult I've flown to Atlanta, Dallas-Ft. Worth and Chicago, all also major hubs. As a child I flew to Orlando (always direct flights due to tourism), and DC, (from Bismarck, ND, but basically everywhere has flights to/from DC for obvious reasons) and to MSP itself from Bismarck.
My discussed Kentucky incursion might require a connecting flight though.