United's program is called Mileage Plus.

He said United would put a notice of the change in the May issue of the newsletter for the program, known as Mileage Plus.

Mr. Engel said that the profit margins of programs like Mileage Plus from United Airlines were typically around 20 percent.

United, she says, requires the signing-up for its Mileage Plus to be done on paper, so this is possible only if the ticket is bought some time in advance.

United Airlines is making some alterations to Mileage Plus, its frequent flier program.

United Airlines launches its own program, Mileage Plus, only a week later.

I am a member of United's Mileage Plus.

On June 29, 2011, United Airlines officially changed the name of the program from Mileage Plus to MileagePlus.

From its inception until June 29, 2011, United's frequent flier program was known as Mileage Plus.

United issues tickets or certificates for its Mileage Plus in the recipient's name on phone or mail request.