Southwest, the largest U.S. operator of the Max, had 34 of the planes when the plane was grounded and expected to add another 41. As a result, its latest schedule change affected 200 daily flights, double the number from just a few months ago. The airline is still in the processing of notifying passengers and has contacted those booked through mid-December, spokesman Chris Mainz said. […] American planned to go from 24 Max 8s to 40. The latest schedule change impacts 140 daily flights, up from 115 a few months ago. All passengers have been notified, spokesman Ross Feinstein said. […] United expected to end the year with 30 Max 9s, up from just 14 when the plane was grounded. It had to cancel nearly 100 daily flights in November and December, compared with 70 in September. All affected passengers have been rebooked, spokesman Frank Benenati said.Dawn Gilbertson (USA Today)