Frontier Airlines resumed service at Oakland San Francisco Bay Airport on Thursday, launching new nonstop flights to Las Vegas after a three-year absence from the East Bay.
American Airlines said in a statement that a "technology issue briefly impacted connectivity" for some systems.
The FAA said seats on hundreds of Boeing 737 MAX jets may require inspections in case they were incorrectly installed and needed to be fixed.
United is launching a new type of row with a middle seat blocked off, giving travelers a little extra elbow and table room.