Wanderlust World Wanderlust World Log on to the United Airlines "United Flight Mileage Credit" Web page. The page can be accessed from the United Airlines homepage at United.com by clicking on "Mileage Plus" in the top bar, and then clicking "Request Mileage Credit" on the right side bar of the Mileage Plus page.
Scroll midway down the page to the list of air carriers and their accompanying request forms. Click "Request Online Now" from the United line, or from the line of the air partner that your flight was on. This page will direct you to a login page where you will enter your email address and password and hit "Enter."
Fill out the flight information on the following page, including the ticket number provided on your e-ticket, and the seat number listed on your boarding pass. When you've filled out all the required information, click "Request Mileage Credit." If you've entered a flight number that the system recognizes, your request will be processed and your mileage will be credited to your account.