Between mid-2018 through early 2020, OAK had both lost and was losing domestic and international nonstop routes; the indefinite grounding of the Boeing 737 MAX by both Southwest and American Airlines, the "restructuring" of schedules by airlines, and a lack of demand all contribute to this. Besides the aforementioned ending of British Airways, Level moved its operations to San Francisco International Airport, as did Norwegian Air Shuttle for its seven routes serving OAK. Southwest Airlines ended systemwide service with Newark Liberty International Airport in November 2019, followed by discontinuing three more routes with OAK effective January 2020. Three other routes are currently suspended by Southwest until further notice, while American did the same during summer 2019 for service with Dallas/Fort Worth International Airport. JetBlue withdrew operations from OAK in April 2020 while American Airlines withdrew in early June 2020.