San Francisco adds more flights

Low-cost Canadian carrier WestJet returns to San Francisco International on May 2 with daily nonstop service to Calgary and three nonstop flights a week to Edmonton. WestJet also will add a daily flight to Vancouver from June 28 to Oct. 30.

Also coming to San Francisco this spring, United will add a second daily flight to Frankfurt for the summer season and resume second daily flights to London and Tokyo, starting March 28; and Air Canada will begin daily seasonal service May 2 to Oct. 31 to Montreal and Toronto.