Toronto to Louisville return via Chicago - Plane was 45 minutes late at departure which meant that I had to run to make my Chicago connection (they literally closed the door after me). We flew on Embraers on each flight - interiors in pretty poor shape and quite dirty with in-flight magazines looking as if they had been used to clean the floors. The seats were incredibly narrow and all planes were full. Service was very friendly though with the hostesses apologetic for the hideous quality of the snacks. Free soft drinks departing from Louisville but not from Toronto. I flew on an award ticket but I'm not sure I would pay full price for such a trip.