United Airlines has announced 12 new international routes from its Denver hub for the winter 2026-2027 season, including new service to Barcelona, Dublin, Zurich, and Cancun. The expansion makes Denver one of United's largest international gateways west of Chicago.
The new routes will be operated by a mix of Boeing 787-9 Dreamliners and 737 MAX 10 aircraft, adding approximately 25,000 seats per week to United's Denver schedule. Several routes will operate daily while seasonal destinations run three to five times weekly.
United's hub strategy in Denver leverages the airport's central US location and growing population base, with the airline now offering nonstop service to over 30 international destinations from the Mile High City.
