The troubled carrier’s parent company, United Continental Holdings, is forecast to report that its first quarter pre-tax profits have crashed, plummeting 62.7 per cent to $183.9million (£147million) compared with the same period the previous year.
Although Wall Street analysts expect Munoz to say that United’s revenues have climbed 2.2 per cent to $8.4billion (£6.7billion), they say that profits have dropped because of falling US air fares and the rising oil price.
United hit turbulence last week after a passenger was filmed being removed from its Louisville to Chicago flight to accommodate United staff.
Four people were chosen at random to give up their seats but one of them, Dr David Dao, refused.
Dao intends to sue.
Munoz was widely mocked for initially defending the decision to kick Dao off the plane.
Subsequently United offered its “sincerest apologies” to Dao and said the incident has provided a “harsh learning experience”.