Yes, Luxor International Airport (LXR) has a lounge, a modest facility built for a tourist-focused regional gateway rather than a large international hub, which fits Luxor's role as the arrival point for Valley of the Kings and Nile-cruise travel rather than a major transit airport. If you searched Luxor airport lounge expecting Cairo-scale variety, the honest picture here is smaller and simpler.
The lounge at LXR is a pay-in or premium-ticket space rather than a large branded venue, with basic seating, refreshments, and a calmer area away from the main terminal crowds during peak tourist periods. It is not confirmed to sit inside a major global Priority Pass or card-network directory the way lounges at bigger Egyptian or regional airports might, so check your specific program's current listing for Luxor before assuming coverage.
Cairo International Airport, Egypt's main hub well to the north, is the honest point of comparison: a broader range of airline and premium lounge options built for the country's largest volume of international traffic, a scale Luxor was never built to match. Travellers connecting through Cairo on their way to or from Luxor should plan any confirmed lounge use around that leg of the journey rather than expecting the same range locally.
Luxor's real travel rhythm is heavily seasonal, tied to the winter Nile-cruise season, roughly October through April, when cooler temperatures draw the heaviest numbers of visitors to the temples, tombs, and river cruises that define this part of Upper Egypt. During that peak stretch, expect the terminal and its modest lounge to feel considerably busier than in the heat of the summer months, when tourist numbers drop off sharply. Plan around that seasonal swing, confirm current lounge access and hours directly, and budget extra time during the winter cruise season regardless of which access route you are using.