The route soon bends north, passing through woods east of Lake Scott, soon reaching an interchange with I-84 (exit 30; formerly 8). Just north of the interchange, PA 402 intersects with SR 4004, which connects to PA 434 and PA 739 at its eastern terminus. The route winds northward through Blooming Grove Township, passing White Deer Lake Access, soon bending northwest again. The route bends northward, crossing into Palmyra Township, soon reaching a clearing and a junction with US 6. This junction serves as the northern terminus of PA 402, just east of the junction with PA 507.