American Airlines says it is cutting 2% of flights from its schedule in September and October.

American refers to the cuts as “proactive adjustments” to “size our airline for the resources we have available and to build additional buffer into the remainder of our summer schedule.”

At its center point in Philadelphia, American will cut many flights – – generally 3% of September flights scheduled and 5% in October.

Airlines have been battling with staffing deficiencies, summer weather and air traffic control delays as travelers are getting back to pandemic-time travel in droves.

The cuts are the most recent in a series via airlines in the United States to ease air traffic disturbances this summer.

United Airlines cut its schedule by 12% this mid year at Newark Liberty International Airport, which has been tormented by abrogations and deferrals. Delta Air Lines too “strategically decreased” flights this summer.

Air traffic disturbances have been terrible in Europe, as well. London Heathrow and Amsterdam Schiphol airports reported moves this week to curb congestion.

On Wednesday, the US Transportation Security Administration screened more than 2.1 million travelers at air terminal security checkpoints nationwide, 86% of that same day in 2019.

American says plan changes have been made “with goal of moving customers to different flights.”

The airline says it will contact travelers straightforwardly with “alternative travel options that get them to their destinations” with clients ready to look for a full refund in the event that the new options won’t work for them.

On Wednesday, the US Department of Transportation proposed a standard that would grow the conditions when airline travelers can get refunds.

That proposal comes in the midst of a flood of complaints from travelers looking for refunds from airlines starting from the beginning of the pandemic.