JetBlue is adding 30 new domestic routes between July and October, including launching premium Mint flights between Newark and Los Angeles/ San Francisco.  Scott Laurence, head of revenue and planning, said that as the carrier begins to see small signs of recovery, it continues to be flexible with its network plans to respond to demand trends and to generate cash in support of its business. The carrier will expand its Mint service to Newark Liberty International Airport, with daily nonstop service to both Los Angeles International Airport and San Francisco International Airport. The service features lie-flat seating, enhanced entertainment and food service and free WiFi.  Additionally, nine temporarily closed cities will reopen in early July, including: Aguadilla and Ponce, Puerto Rico; Chicago O’Hare; Dallas/Fort Worth International; Houston Intercontinental; Minneapolis-Saint Paul International; Philadelphia International; Portland International (Ore.); and Providence T.F. Green International (R.I.).