American Airlines is once again cutting its flight schedule, slashing 16% or ...

(CNN) — American Airlines is once again cutting its flight schedule, slashing 16% or 31,000 flights during November.

The airline said the move is "in line with our approach to network and schedule planning throughout the year."

Schedule data provided by Cirium, an aviation analytics company, shows the largest cuts are between Chicago O'Hare and Dallas-Fort Worth, as well as between Boston and Philadelphia.

"Preliminary schedules are published 331 days in advance and then adjustments are made closer in based on the schedule we intend to operate," American said to CNN in a statement. "We are now loading schedule adjustments approximately 100 days in advance, which is in line with how we adjusted our schedule in 2019 prior to the pandemic."

American Airlines called the changes "proactive adjustments" in order to "size our airline for the resources we have available and to build additional buffer into the remainder of our summer schedule."

American isn't the only US airline to trim its schedule.

Airlines have been struggling with flight cancellations and delays this summer as they face staffing shortages, severe weather and air traffic control delays. Last week, an unexpected line of storms at Dallas Fort Worth International Airport caused 100 American Airlines flight diversions and hundreds of cancellations.

Transportation Secretary Pete Buttigieg recently called the air travel system "very brittle" and proposed new consumer protections for passengers.

Top image: American Airlines planes are seen at Philadelphia International Airport on June 20, 2022. (Daniel Slim/AFP/Getty Images)

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