Over the years, Philadelphia International Airport has grown into one of American Airlines' most important transatlantic hubs. The airline has gradually expanded long-haul operations from Philadelphia while also strengthening international services from other major hubs, including Charlotte and Dallas/Fort Worth. This strategy allows American Airlines to provide passengers with a wider range of nonstop European destinations while improving connectivity for travelers arriving from cities across the United States. The approach also helps the airline operate its long-haul fleet more efficiently by concentrating international services at airports with strong connecting traffic.