The Real Reason Southwest Airlines Still Hasn't Retired Its Oldest Boeing 737-700s

Southwest Airlines continues to operate some of its oldest Boeing 737-700 aircraft within its current fleet. The airline’s decision stems primarily from a significant contractual obligation with Boeing regarding these specific planes. These agreements dictate that Southwest must maintain the 737-700s until 2028, representing a long-term commitment. Despite industry trends favoring newer models, this contract remains the key factor preventing their retirement. Consequently, Southwest is obligated to continue utilizing these older aircraft for the next six years.