For anyone who has ever stared down the snaking line outside the Centurion Lounge at Philadelphia International Airport, relief may finally be on the way. American Express is moving toward nearly doubling the size of its Philadelphia Centurion by taking over the British Airways Galleries Club space directly underneath it in Concourse A‑West.
Public project filings, including a listing on nvbpels.org, describe a plan to expand the existing roughly 6,300‑square‑foot lounge to just under 12,000 square feet by renovating the current level and adding lower‑level space. The upgrade would ease chronic crowding but still leave Amex short of the footprint claimed by some of PHL’s newest premium rivals.
Travel blog View from the Wing first reported the tip on May 22, 2026, citing reader sightings and the public project entry. That outside confirmation has kicked off a new round of speculation among frequent flyers about what the refreshed space might look like and how much it will actually help with those evening crowds.
Space math
Philadelphia International Airport materials list the current Centurion Lounge at about 6,300 square feet, according to the airport’s own announcement on the facility. An American Airlines press release pegs the British Airways Galleries Club lounge below it at 5,665 square feet.
Put together, those figures bump the potential Amex footprint to roughly 11,965 square feet, which early coverage has summarized as “just under 12,000” square feet. In lounge terms, that is a serious upgrade from the current setup, even if it is not quite in megaclub territory.
How it stacks up
Size wise, the enlarged Centurion would still trail the Chase Sapphire Lounge at PHL by a wide margin. Chase says its Sapphire space clocks in at about 20,000 square feet.
That means the expanded Centurion would come in at roughly 60 percent of the Chase lounge’s size, keeping Amex competitive in the premium‑card arms race without actually taking the local crown.
Why travelers care
The Philadelphia Centurion has developed a reputation for being packed to the gills, especially when Europe‑bound flights start to bank out of A‑West. As View from the Wing put it, “waits to get in wind up very long, especially before peak transatlantic departures in the evenings.”
Folding the British Airways space into the operation would mean more seats, plus added kitchen and service capacity. All of that should translate into shorter lines and less of the awkward “sorry, we’re at capacity” routine for eligible cardholders, even if it will not match the amenity sprawl that a 20,000‑square‑foot lounge can offer.
Timeline and next steps
So far, American Express has not publicly shared a construction schedule or target opening date. The company’s official lounge listing for PHL still shows the current location and makes no mention of an expansion.
The Nevada board filing’s entry labeled “AMEX PHL Lounge (2024 to Present)” notes mechanical design and HVAC work, which suggests the project is at least in the planning or early technical stages. That is as close to a timeline as anyone has at the moment.
Until Amex, British Airways or the airport release lease details, building permits or a formal announcement, the square footage numbers and configuration remain provisional. Regulars flying in and out of Terminal A‑West may want to keep an eye on official channels for confirmed plans and construction milestones.
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