Two corridors: US-15 north (the primary PA-NY artery — Williamsport → Trout Run → Mansfield → Lawrenceville → Lindley → Painted Post → Corning). US-220 / NY-17 (Southern Tier Expressway, eastern corridor). Both end in Steuben County, NY.
The cleanest pattern: drive up to Corning, shop, consume in New York in a private setting, return to Pennsylvania empty-handed. Cannabis purchased at any New York dispensary remains a Schedule I controlled substance under federal law and remains illegal under Pennsylvania state law.
Union Chill Cannabis Company at 34 W Pulteney St, Corning, NY 14830. NY OCM-CAURD #OCM-CAURD-25-000269. 25 min – 90 min from Pennsylvania via US-15 north (varies by PA city). Open Mon-Sat 10am-9pm, closed Sunday. Adults 21+ with valid photo ID. Out-of-state IDs accepted.