United Airlines is adding two new Japan routes, including the first nonstop flight from the continental United States to Sapporo and a new daily Chicago – Tokyo Narita flight that restores another important Asia link from O’Hare. United Airlines Adds Nonstop Sapporo Flights, New Tokyo Narita Service United Airlines is expanding its already-large Japan network with two new routes this winter: San Francisco – Sapporo and Chicago – Tokyo Narita. United Adds San Francisco – Sapporo Starting December 11, 2026, United will launch 3x weekly seasonal nonstop service between San Francisco (SFO) and Sapporo (CTS), operating through March. United says this will be the first nonstop service between the continental United States and Sapporo. The route is expected to operate with a Boeing 787-9 Dreamliner.…