Delta Air LinesThe airline is cutting approximately 100 flights per day between July 1 and Aug. 7. This latest move by the carrier in an effort to avoid flight disruptions for thousands more passengers will be effective from July 1, through August 7, 2016.

About 2% of Delta’s departures are reduced during summer. There are also other carriers like JetBlue AirwaysAnd Spirit AirlinesThey have also reduced their schedules in order to allow them more flexibility to deal with challenges such as bad weather or staffing shortages.

“More than any time in our history, the various factors currently impacting our operation – weather and air traffic control, vendor staffing, increased COVID case rates contributing to higher-than-planned unscheduled absences in some work groups – are resulting in an operation that isn’t consistently up to the standards Delta has set for the industry in recent years,” Delta’s chief customer experience officer, Allison Ausband, wrote in a note on the airline’s website Thursday.

Delta asked its pilots to take up available shifts on a busy Memorial Day weekend when Delta expects to fly 2.25 million passengers, an increase of 25% over last year.

Airlines have more power to charge for passengers who return after two years. the Covid pandemic.

Southwest AirlinesFor example, Thursday’s statement by reveals that it anticipates its second-quarter capacities to drop 7% compared to 2019 levels and operating revenue will rise as much as 15% over three years ago.