WASHINGTON—American Airlines Group Inc. on Wednesday extended cancellations of Boeing 737 MAX flights through Jan. 15, running contrary to the planemaker’s promises that the grounded jets would be flying again before the year-end.
The largest U.S. airline, which had previously canceled about 140 flights a day through Dec. 3, upped its estimate for the impact of the groundings on third-quarter pre-tax profit to $140 million, $15 million more than a previous estimate.
