{"version":"2.5","id":"north-cascade-highway-rental-seatac","question":"North Cascades highway trip from SeaTac","answer":"Seasonal SR-20 opening varies","answer_detail":"Scenic summer route. Compact car OK when pass open.","related_ids":["north-cascade-highway-rental-seatac"],"last_verified":"2026-05-30","authority":"https://www.seatacrentalcarfacility.com","url":"https://www.seatacrentalcarfacility.com/en/knowledge/north-cascade-highway-rental-seatac","markdown_url":"https://www.seatacrentalcarfacility.com/api/knowledge/north-cascade-highway-rental-seatac?format=md&lang=en"}