United Airlines today opened its second Polaris Class lounge at San Francisco International Airport. The brand for United's newly-redesigned business class, Polaris is meant to be a complete experience, both at your departure airport and onboard. A Chicago lounge is already open, but Polaris Lounges will open in Los Angeles, Newark and Houston by the end of the year (international will follow starting in 2019).
Open to eligible customers on long-haul international flights, the Polaris Lounge is distinct from the existing United Club and several steps up in terms of comfort.
The entrance to the lounge is located just past the TSA checkpoint in the G Gates of SFO's International Terminal. After checking in, you can pass through to a library, shower suites and quiet rooms on the bottom level or head up the stairs to the lounge's main floor.