In October, WestJet will increase its network to 48 destinations, including 39 in Canada and nine international. Among the returning routes are WestJet's nonstop Dreamliner service between Toronto and London Gatwick and service between Calgary and each Palm Springs, Calif.; Phoenix; and Cancun, Puerto Vallarta and Cabo San Lucas in Mexico. WestJet also is restarting service between Toronto and Cancun as well as Kingston and Montego Bay in Jamaica.