The number of guests allowed into an airport lounge with one credit card depends entirely on the specific card's terms and the lounge network (e.g., Priority Pass, Centurion, or airline-specific). In 2026, premium cards like the Chase Sapphire Reserve or Amex Platinum typically offer a Priority Pass membership that includes the primary cardholder and up to two guests for free. Any additional guests beyond the first two are usually charged a fee, often around $35–$50 per person. For airline-specific lounges, such as the Delta Sky Club, the rules have become stricter; many cards no longer allow any free guests, requiring cardholders to pay for guest passes or hold a specific "Executive" membership. Conversely, some high-end cards allow "Authorized Users" (who have their own physical card) to enter independently or bring their own guests. Always check your bank's mobile app before travel, as guest policies were significantly tightened between 2023 and 2025 to combat lounge overcrowding.