Even passengers who have entry level elite status, Premier Silver, are entitled to United Complimentary Premier Upgrades (CPUs). CPUs are available on most domestic flights and can move you from economy class to first class for free.

Yes, United Premier Silver members are eligible for Complimentary Premier Upgrades (CPUs) to United First or United Business, but they sit at the bottom of the priority list. In 2026, these upgrades are processed day-of-departure, usually beginning at the airport gate, which is a significantly shorter window than the 48-hour window enjoyed by Gold members or the 96-hour window for 1K members. For a Silver member to snag a first-class seat, the flight must have empty premium seats after all higher-tier elites have been accommodated. One major positive change for 2026 is that United now allows Premier Silver members to be eligible for upgrades even on award tickets (flights booked with miles), provided they also hold a qualifying United Chase credit card. However, keep in mind that "Basic Economy" tickets remain strictly ineligible for any upgrades regardless of status. While "clearing" the upgrade list as a Silver can be difficult on competitive hub-to-hub routes, it is still a very real and valuable perk on off-peak or regional flights.