Re: trip delayed/Thank you Charlie
Patrick;
Take out a ruler and draw a "Straight line" from Toronto or Attawa to S'C and see if you can make it curve East of Buffalo
Your point of not actually going near Chicago is well understood, but Chicago center will "Work" that flight until it is handed off to Probably Philadelphia. Contrary to belief, Commercial Airlines and Mil Aircraft enroute do not fly "Direct" to anywhere, they must follow Victor Airways that jink them all over the sky. There was severe rime icing in all of Chicagos space, especially to the East.
Now that you say you go East of Buffalo, you are most likely flying:
Toronto Clearance Deliver Toronto Ground Toronto Tower Toronto Departure Chicago Center NY Center Atlanta Center Miami Center Santo Domingo Approach Santo Domingo Tower Santo Domingo Ground
I don't have a chart in my hand, but that would be the likely ATC that your flight has to deal with, receiving permission to enter any of that airspace as it is all class "Bravo" meaning it is positively controlled airspace.
Now someone can pick this apart that actually flies this route, but I belive it has provided MORE than any of you want to know about ATC
Tom