<h1>Airline suspends flights to Washington D.C. from September 1 due to Boeing 787 retrofits and airspace closures</h1> An airline will suspend flights between its national capital hub and Washington D.C. starting September 1 due to the unavailability of multiple Boeing 787 aircraft undergoing a retrofit program expected to last until the end of 2026. The retrofit aims to improve customer experience but results in a significant fleet shortfall. Additionally, the continued closure of airspace over a neighboring country complicates long-haul operations by forcing longer flight routes. The airline will notify affected passengers and offer alternative travel options or full refunds according to their preferences.