After much turmoil with our flight itinerary; every leg of the trip has been cancelled, changed or modified at least once in the last couple of months and our final trip routing is now different in every respect as compared to our original plan, the only common factors being that we leave from Toronto, arrive in Buenos Aires and at some future date which also changes, we arrive back in Toronto. While Air Canada flies direct Toronto to BA, we were routed through Newark NJ where we were to pick up a United flight to BA and then returning it was to have been BA to Lima on Avianca, a change of planes and on to to San Salvador and a change of airlines and home to TO. Crazy. ...