An Air Canada airplane about to land at Pearson International Airport. (Photo: Carlos Osorio/Toronto Star via Getty Images)"Service adjustments are part of normal airline schedule planning and the number of flights across our network may vary at certain times of the year due to a number of factors including customer demand and aircraft availability," said spokeswoman Isabelle Arthur. Air Canada (TSX:AC) will end its triweekly flights from Toronto in mid-October but will continue to operate daily flights between Toronto and Sao Paulo. In December, it will deploy new Boeing 787 Dreamliners with 251 seats to replace older Boeing 763 planes with 211 seats. Passengers can also connect to Rio with Brazilian codeshare partners GOL and Avianca Brasil. Air Canada launched its new arrangement with Avianca in May to ease travel to the South American country ahead of the Summer Olympics.
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