United to launch first-ever Sapporo service and add daily Chicago–Tokyo Narita flights for 2025/26 winter
United Airlines will add Japan service to Sapporo for the first time, with new nonstop routes including San Francisco–Sapporo and a daily Chicago–Tokyo Narita departure for the 2025–2026 northern winter season. Some flights will be operated with Boeing 787-9 aircraft, including SFO–Sapporo winter service starting in December 2026.