An American Airlines Boeing 737 MAX 8 flight from Los Angeles lands at Reagan National Airport shortly after an announcement was made by the FAA that the planes were being grounded by the United States in Washington, March 13, 2019.

United Airlines will take its 14 Boeing 737 Max jets off its schedule for another month, through Aug. 3, canceling another 1,290 flights as the plane remains grounded.

The move comes a day after the Federal Aviation Administration's acting head said airlines didn't need to extend flight cancellations for Max flights. The FAA hasn't said when it thinks the Max will return to flight.

United joins other major airlines such as American and Southwest, which have canceled thousands of flights during the busy summer travel season and removed the Max from schedules through August. United alone has canceled at least 3,300 flights since the plane was grounded in mid-March.