No, you cannot let someone else use your physical or digital Priority Pass card if you are not traveling with them. Priority Pass memberships are strictly non-transferable and are tied to the specific name printed on the card. When you arrive at an airport lounge, the staff will almost always ask to see your boarding pass along with your Priority Pass; if the names do not match, they will deny entry. Attempting to "lend" your card to a friend or family member is a violation of the terms of service and could result in your membership being canceled. However, the Priority Pass Guest Policy encourages you to bring people with you. Most memberships, especially those provided through premium credit cards like the Chase Sapphire Reserve or Amex Platinum, allow you to bring at least two guests for free, while others charge a flat fee (usually $35 per guest) to the card on file. If you want a family member to have their own access when traveling alone, many credit card issuers allow you to add them as an "Authorized User" for a fee, which often grants them their own individual Priority Pass membership with the same benefits as yours.