Something like Amtrak is the main airline, and then you could have “Greyhound” (the real-life regional bus service to areas where there are no train - partners with Amtrak) serve as the airline’s regional feeder? They greyhound buses are usually mostly dark blue (if I can recall). Just a suggestion, thinking it would be a cool tie-in to their overall ops.
Maybe. Amtrak actually has its own bus line (Amtrak Thruway Motorcoach) so maybe I’ll do that and Greyhound although I do have a long list of stuff I’m going to do.