Yes, you can easily walk between Terminal A and Terminal B at Philadelphia International Airport (PHL) in 2026 without leaving the secure (airside) area. All terminals at PHL (A-West, A-East, B, C, D, E, and F) are interconnected post-security, meaning you do not have to clear TSA again if you are transferring between them. The walk from the center of Terminal A-West to the beginning of Terminal B takes approximately 10 to 15 minutes at a brisk pace. The walkway is lined with numerous shops and the "PHL Food & Shops" corridor, making the transition comfortable. For those with limited mobility or heavy luggage, the airport provides a shuttle bus service that runs between Terminal C (near Terminal B) and Terminal F, but for the A-to-B segment, walking is the fastest and most reliable option. In 2026, PHL has also enhanced its "Wayfinding" digital signage, which provides real-time walking estimates to your specific gate to help you manage your connection time effectively.