which rapidly increased flying to meet a surge in travel demand, is trimming some flights to alleviate potential strains on its operations.

The number of flights being culled is relatively small, amounting to about 1% of the airline’s planned flying in the first half of July.

Storms that hit some of American’s biggest hubs several days this month, causing delays and cancellations, contributed to the airline’s decision to cut back to have more breathing room when unexpected problems arise, the airline said.

More robust schedules and fuller flights mean more difficulties when things go wrong.

American is trying to avoid a repeat of its disastrous summer in 2019, when bad weather and a feud with the airline’s mechanics snarled operations, an American executive said.

The airline hopes that calling off some flights in advance and shifting passengers on to alternate flights will reduce the need to cancel flights at the last minute if weather or maintenance issues arise—something that enrages customers.

Companies that provide catering, wheelchair pushers and fueling services are short staffed, which sometimes slows operations and creates inconveniences for customers, the American executive said.

Cutting some flights will also alleviate pressure on maintenance and mean there will be a bigger pool of pilots on reserve, providing a buffer when needed.

American cut flights in markets where there are multiple other flight options to accommodate customers, and the trims will provide “additional resilience and certainty” to the airline’s operations, a spokeswoman said.

The airline’s pilots say the fast increase in flying has been challenging, and that they have faced scheduling headaches stemming from an increase in last-minute reassignments