Santorini is one of Greece's most popular island destinations, but its airport is small and seasonal, and the honest answer on lounges is simple: there are none. Setting that expectation before you fly matters, because after a holiday on the island you will be relying on the airport's cafes rather than a lounge.
Lounges at Santorini
Santorini Airport has no lounge facilities of any kind. There is no airline lounge, no independent lounge, and no Priority Pass lounge at the airport. The terminal is small, with a duty-free shop, a phone shop, and cafes making up the passenger facilities, and that is what you have to work with before your flight. For a busy summer island airport this can feel tight, so it is worth planning around it.
Priority Pass and access
Because there are no lounges at Santorini, a Priority Pass will not get you into a lounge here, and neither will a premium credit card or an airline day pass, regardless of your ticket class or membership. In short, no card, membership, or status provides a lounge at this airport, because none exists. This catches out travellers who assume a popular destination must have a lounge, so plan on the cafes instead.
Tips
With no lounge, arrive with a plan to use the airport's cafes and seating, and be prepared for the terminal to be busy in the peak summer season, when Santorini handles heavy holiday traffic through a compact building. Getting food or a drink before the busiest waves helps, as seating fills up. If a lounge is important to you, it would need to come from a connecting airport on the mainland rather than Santorini. Use the comparison below to understand the general access methods, keeping in mind none apply at Santorini itself.