Southwest Airlines, the airline with by far the most departures and arrivals at BWI Marshall Airport, has released its summer schedule for the Maryland airport and it will be operating slightly more flights that it was in summer 2019. In the peak summer period for 2023, Southwest will operate 219 daily departures from BWI Marshall. At its Denver hub, Southwest will surpass 300 flights daily, the most departures for the airline at any airport. “That’s