Pennsylvania Route 88 and U.S. Route 19 run through Bethel Park, with much of the area's busy commercial developments along the two corridors. The Yellow and Orange Belts of the Allegheny County belt system serve the borough, with the Orange Belt terminating in the southeast corner near the border with South Park. Interstate 79 and the Mon-Fayette Expressway don't enter Bethel Park but are both within a 15-minute drive from the borough. The cancelled South Hills Expressway was planned to be constructed along the Route 88 corridor.