MileagePlus is the frequent-flyer program of United Airlines that offers rewards to passengers traveling on certain types of tickets.

[2] The program was subsequently renamed to MileagePlus, and maintains its relationship with its Star Alliance partners, as well as other airline and travel enterprise agreements.

[10] On July 9, 2011, Tom Stuker became the first member of the MileagePlus program to reach ten million flown miles on United.

[17] A federal judge eventually dismissed the class-action lawsuit on the basis that the contract which regulated "Million Mile Flyer" customers was the same as for all MileagePlus members, which essentially gave the airline the right to unilaterally reduce or discontinue benefits anytime it wanted to.

[19] But over time, this resulted in diluted status privileges and as of 2024 the MileagePlus requirements are now back to pre-Covid numbers.

[20] In addition to United, all 28 members of the Star Alliance as well as a number of other airlines participate in the MileagePlus program to a certain degree.

[23] MileagePlus offers Saver and Everyday awards, at different tiers of pricing with different capacity control mechanisms.

While status levels were not originally part of the MileagePlus program, they were introduced in 1987 to reward customers who had achieved certain qualification thresholds within a given calendar year.

Starting in 2014, members living in United States had to meet a minimum annual spending level, tracked as Premier Qualifying Dollars (PQD), on United issued tickets in a calendar year to qualify for a tier.

Status holders enjoy the highest upgrade priority and access to a dedicated phone line.

It is a secretive, by-invitation-only status level that provides discrete services to high value individuals that often spend tens of thousands of dollars flying on United per year.

Chairman's Circle status is conferred to one individual at companies with significant business partnerships with United.