As of early 2026, the guest policy for the American Express Platinum Card has become more exclusive. For the Centurion Lounge, U.S. cardholders generally must pay a fee of $50 per adult guest (or $30 for children) unless they have spent at least $75,000 on their card in the previous calendar year. If that spending threshold is met, the cardholder receives complimentary access for two guests. However, starting July 8, 2026, a new global rule requires that all guests must be traveling on the same flight as the primary cardmember. For Priority Pass lounges (a separate benefit included with the card), most versions still allow one guest for free, though some specific lounge locations may have their own capacity restrictions. It is important to note that guest access for Delta SkyClubs is even more restricted; you must be flying Delta, and guests almost always require an additional fee or the use of "Guest Passes" provided with specific card renewals. Always check the Amex app for real-time guest capacity at your specific terminal.