I'm planning my coming trip to Canada (next July) and need some input to solve out a problem. I'm flying into Montreal, spend some days in the area then fly to Calgary then fly to from Vancouver to Toronto where I have my booked flight to home.

Unfortunately I'm not sure at the moment what are the days I have to fly between Montreal to Calgary and from Van to Toronto but I know July is a busy month.

My question is: it could be better buy now a ticket with AC Tango (that allow me to change the flight time/day just for 25 CD$) or my best bet could be just get in Canada and there look for seat in low cost airline or budget travel agengy ?

Are AC Tango offering a good service ?

Thank you, Marco in Milan - Italy