Lounge access is usually framed as something you earn. Star Alliance also sells it, and the conditions are worth knowing before you rely on either route.
What you do and do not need
You do need to be flying on a Star Alliance member carrier flight. Star Alliance answers the question directly: “Yes, you have to fly on a Star Alliance Member Carrier flight.”
You do not need frequent flyer status, and you do not need a business class ticket. That is the part travellers get wrong, and it is what makes a paid lounge a real option on an economy itinerary:
No. If you have purchased a lounge access through our reservation website, there is no need to have a frequent flier status, or business class of travel to access the lounge.
What to bring
Star Alliance asks for both documents together: “Please present your lounge reservation alongside your valid boarding pass with same day of travel to be admitted into the lounge.” One without the other is not enough, and the boarding pass has to be for that day.
On age: “You must be at least 18 years of age to reserve lounge access. You may be asked for valid identification document at lounge entrance.”
Group size and length of stay
A single reservation stretches further than most people expect: “You may create a reservation for a travel party of up to 9 persons, including yourself.”
The stay is capped, though: “The lounge reservation provide for a maximum three hour stay in the Lounge unless otherwise indicated on the Access Document or by the Lounge.” A long layover may outlast your access.
Changes and refunds
You can edit your name, email, flight number and comments. You cannot move the booking: “Please note that you cannot modify reservation date and time. To change this information, you must cancel and re-do your reservation.” If your plans shift, you cancel and rebook rather than amend.
Refunds are tied to the flight rather than to you changing your mind: “All Lounge Access reservations are fully refunded if cancelled less more than the 24 hours prior to the estimated time of entrance due to your flight being cancelled or delayed for more than 4 hours.”
The wording of that sentence is Star Alliance’s own, garbled middle included, and it is worth reading twice before relying on it.
What the lounge pages leave out
The reservation rules are unusually clear. The economics are not. Star Alliance’s pages set out who may buy access and on what terms, but no price appears anywhere in what it publishes — lounge access is quoted per lounge, at the point of booking, and there is no published range to plan against.
Nor does it say what is inside any particular lounge. Showers, hot food, and quiet space vary enormously between an alliance flagship and a small contract lounge, and the access rules above are identical for both. Check the individual lounge before you decide three hours there is worth paying for.