You can search for, and reserve, flights on United's website or call the reservation number. United promises it best fares online and charges a fee for telephone reservations.
You can sign up for E-Fares at United's website to get special deals on flights. E-Fares are published Tuesdays at 12:01 am.
You can book a flight with United Airlines using your miles from the United frequent flier program or any member of the Star Alliance, which is a group of airlines that share frequent flier programs. To use your miles, go to the United website and click on the "Redeem Miles" link on the homepage.
United guarantees you will get the lowest fares on United flights directly through their website. This eliminates the need to scour travel websites and search engines to get the best deal.