"At this point, we're assessing the impact of the schedule, but we do not anticipate flying the MAX this summer," Nocella said on an earnings call with analysts.

United and other U.S. airlines that operate the 737 MAX had been scheduling flights on the aircraft in June, based on assumptions that the aircraft could receive regulatory approval in the first quarter.

(This Jan. 22 story corrects attribution in first and second paragraphs to Chief Commerical Officer Andrew Nocella from President Scott Kirby)

(Reporting by Sanjana Shivdas; Writing by Tracy Rucinski)