United Airines is planning to extend its seasonal service between London Heathrow and Denver to year-round, starting on November 1 this year.
The airline will operate the route with a Boeing 787-8 Dreamliner aircraft.
United is the only carrier offering both nonstop trans-Atlantic and trans-Pacific flights to Denver.
In addition to London, United offers nonstop year-round services from Frankfurt and Narita.
The proposed extension to a year-round service is subject to government approval.