Yes, you can generally bring a guest into an airport lounge, but the specific "High-Fidelity" rules and fees depend heavily on your membership type or credit card benefits. In 2026, premium cards like the American Express Platinum have tightened their guest policies; cardholders must now spend $75,000 annually to unlock "Complimentary Guest Access" for two guests; otherwise, they must pay a fee (typically $50 per adult). For those with Priority Pass through other cards like the Chase Sapphire Reserve, you can usually bring two guests for free. If you are flying in First or Business Class on an international route, most airlines allow one guest if they are also traveling on a flight operated by the same alliance. It is a high-fidelity requirement to ensure your guest is traveling with you, and in some lounges, they must even be on the same flight. Children under 2 years old are almost always admitted for free, but it is a high-fidelity best practice to check the specific "Lounge Policy" in your banking or airline app before arriving at the terminal.