Originally Posted by
NovaEngr
A boarding pass is required, but any airline.
UC Rules
And unlike AA or DL Club members, UA Club customers can access
member-owned lounges across their alliance with a same day ticket from any alliance member. AA offers customers some lounges with some partners (BA+QF?), and DL offers no partner lounge access effective 2019. This means a DL Club member flying CDG-ATL only gets access on one end of the flight in Atlanta, while a UA Club member flying KBV-BKK-IST on *A would have access at all three airports (assuming access at IST is legally allowed after arrival) even though UA does not currently fly to any of those airports. This is a really big deal and, in my opinion, one of the biggest value propositions to be a United Club member.