Norwegian expands Oakland base with new 4x weekly flights Oakland, California, 2017-Jul-09 — /Travel PR News/ — Officials at Oakland International Airport (OAK) announce today that Norwegian Air will add new nonstop service between OAK and Paris, Charles de Gaulle (CDG), the largest of the Paris-area airports.  The flight will operate 4-times weekly (Tuesday, Thursday, Saturday and… Read the full press release