Yes, the four terminals at Paris-Orly Airport (Orly 1, 2, 3, and 4) are all connected and relatively easy to navigate in 2026. Orly 1, 2, and 3 are part of a single continuous building, meaning you can walk between them in about 5 to 10 minutes without leaving the terminal complex. Orly 4 is located slightly further south but is connected to the other three via the OrlyVal, a free automated shuttle train that makes the trip in just 2 minutes. If you are on the "landside" (before security), there are clear indoor walkways linking the entire airport. However, if you are in the "transit" (airside) area, whether you can walk between terminals depends on your specific boarding gate and security zone. For most travelers, the transition between Orly 1/2/3 is seamless, while a quick hop on the OrlyVal is the standard way to reach the more distinct Orly 4 terminal for international flights or specific budget carriers.