Thiais provides a pedestrian-friendly environment with a mix of residential and commercial areas that are generally accessible on foot. The town features well-maintained sidewalks and pathways, making walking a practical option for short distances. Many local amenities, such as shops and parks, are within a reasonable walking range. However, the layout of the area, combined with its proximity to larger transportation hubs, may mean that some destinations are spaced farther apart, which could make walking less convenient for longer trips. The relatively mild climate in Île-de-France generally supports walking as a comfortable mode of transportation.

Cycling in Thiais is supported by some infrastructure, including designated bike paths that improve accessibility and safety for riders. The area features connections to nearby towns and key locations, making biking a practical option for short to moderate distances. The relatively flat terrain in the region supports comfortable cycling, though riders should consider the overall distance to their destinations.

The public transit system in Thiais provides convenient options for getting around the area. The bus network is well-connected, with routes linking Thiais to nearby towns and key transit hubs. Dedicated bus lanes on certain routes help ensure reliable and efficient service. Additionally, regional transit systems provide access to broader areas, making it easier to travel beyond Thiais. The infrastructure supports smooth connections, and the relatively compact layout of the town makes public transportation a practical choice for many destinations.