We can't admit you if you've just landed, unless you have a layover or connecting flight that departs on the same day that is stated on your boarding pass. Same-day round-trip itineraries are not considered connecting flights.

Generally, no, you cannot access American Express Centurion Lounges upon arrival at your final destination in 2026. AmEx policy strictly requires a boarding pass for a departing flight on the same day. This means the lounge is intended for use during the departure process or during a layover between two connecting flights. Specifically, you can enter up to 3 hours before your initial departure or for the duration of a layover (though as of July 2026, layover access is often capped at 5 hours for certain locations). The only exception to the "no arrival access" rule is for members holding the Centurion Card (the "Black Card"), who may occasionally be granted arrival access depending on the specific lounge's capacity and local management's discretion. For the standard Platinum Card member, once you land and exit the airport, your lounge privileges for that leg of the trip have concluded.