The 3-hour versus 5-hour rule: how layovers now buy you more lounge time at Sapphire and Centurion

For most of the last seven years, the rule for a long connection at a bank lounge was easy to remember and backwards from what you would guess. Amex, the strict one, let connecting passengers into a Centurion Lounge with no time limit at all. Chase, the newer and supposedly friendlier one, held everyone to three hours, connection or not. This summer both moved, in opposite directions, and ended up in the same place: five hours before your onward flight.

Amex tightened on July 8, 2026. Chase loosened on August 15. Capital One did not move and still says three. If you connect through Dallas, Phoenix or Philadelphia with a bank card, the gap between those numbers is now the most practical thing to know about your lounge access.

Our guide to lounge entry windows covers the originating-passenger rules network by network, plus Delta, United and American. This piece is only about connections, and it corrects one thing that guide got wrong: the Centurion Lounge no longer admits connecting passengers regardless of layover length.

The rules as of October 2026

Centurion Lounge. Three hours before an originating departure. On a layover, Amex's lounge terms now say you must arrive within five hours of the connecting flight. Before July 8 there was no cap for connecting passengers, which is what made a seven-hour stay between a morning arrival and an evening flight to Europe possible. Amex's access page applies the five-hour cap at the US lounges and at Heathrow, Hong Kong and Tokyo Haneda; some reporting also lists Sydney and Melbourne, which Amex's page does not name. Amex also says plainly that a same-day round trip is not a connection, so flying out and back on one day does not earn you the longer window on the way home. The Las Vegas Sidecar is the exception to everything: 90 minutes, layover or not.

Chase Sapphire Lounge. Three hours before the first flight of a trip or a nonstop. Since August 15, cardholders on an itinerary with a connection can enter up to five hours before the connecting flight, up from three. Chase made the change on the same day the lounges left Priority Pass, which we covered in the Sapphire Lounge story. Who gets in is unchanged: Sapphire Reserve, Sapphire Reserve for Business, J.P. Morgan Reserve and Ritz-Carlton cardholders.

Capital One Lounge. Three hours before departure, and the same-day boarding pass can be for a departing or a connecting flight. There is no extended window for connections. A four-hour DFW layover on a Venture X means one hour in the terminal before the door opens.

The headline, then: Amex and Chase now agree at five hours on a connection and three otherwise. Amex holders lost something; Chase holders gained something; and the Amex Platinum is no longer the card with the best layover rule, just one of two.

How the desk decides you are connecting

Neither bank publishes a checklist, so this part is practice rather than policy, and I would plan around it rather than argue with it.

What the agent scans is your boarding pass for the onward flight. Both networks require a same-day, confirmed boarding pass with a seat or zone, and Amex adds that the name must match the card. The scan tells the agent when that flight leaves. What it does not tell them is how you got to the airport, so the question "are you connecting?" is really a request for evidence that you arrived on a plane.

The easiest evidence is a single itinerary: the inbound and outbound flights on one confirmation, which your airline app shows as one trip with a layover. Keep the inbound boarding pass in your wallet app rather than deleting it on landing. If you are four and a half hours out and the agent hesitates, showing both legs on one booking usually ends the conversation. I would not count on the agent taking your word for it, especially at the busy lounges where the window exists precisely so they can say no.

The edge cases

Separate tickets. Neither Amex nor Chase says whether two separate bookings count as a connection. Chase's wording refers to an itinerary with a connection, which reads like one booking; Amex says connecting flight, and excludes only same-day round trips. If you self-connect on separate tickets, your inbound boarding pass is the only proof you have, and it is the agent's call. Assume three hours and treat anything better as a gift.

Overnight layovers. The boarding pass has to be for a same-day departure. Land at 9pm with a 7am flight and the lounge cannot let you in on arrival, because your onward flight is tomorrow, and it will be closed overnight anyway; the DFW Centurion runs 5:30am to 10pm. The next morning, once you check in and have the boarding pass, a five-hour window still helps in principle, but at that hour the opening time is your real limit. For a night in the terminal you want a 24-hour lounge, and our overnight list has them.

Arrivals. No bank lounge in the US lets you in after your final flight. Amex says so explicitly; Chase and Capital One require a departing boarding pass. A connection is the only way in after landing. Delta and United members have arrival access; bank cardholders do not.

Guests. Since July 8, Centurion guests must be on the same flight as the cardholder, which on a connection means the same onward flight. A companion connecting to a different city an hour later does not qualify. Chase has published no same-flight rule.

Lounge hours. Five hours is a ceiling, not a promise. The Houston Centurion closes at 9:30pm and the Phoenix Centurion at 9pm, so an evening departure can be inside the window and outside the opening hours. Check the hours on the lounge page before you build a plan around a long connection.

Where the extra two hours actually matter

Five hours is only useful at an airport where people connect, where the lounge is airside from the gates they connect between, and where layovers routinely run past three hours. That describes the airline hubs, and the good news is that several of them have both a Sapphire and a Centurion Lounge.

Dallas/Fort Worth. American's largest hub, Skylink between all five terminals airside, and three bank lounges in Terminal D: the Centurion across from D12 with four showers and a 4.9 rating, the Sapphire Lounge at D25 at 4.5, and the Capital One Lounge by D22 at 4.7. On a four-hour connection, Amex and Chase holders walk in on landing. Capital One holders wait an hour.

Phoenix. American's hub, and both lounges are in Terminal 4: Sapphire near D11 at 4.8, Centurion across from B22 at 4.5. Both are in the same terminal as American's gates, so a long connection there never involves a terminal change.

Philadelphia. Another American hub, with all terminals connected airside. The Sapphire Lounge is in the D/E connector at 4.5 with two showers; the Centurion is in A-West near A14 at 4.8, which is exactly where the transatlantic flights leave. A long afternoon layover before a European departure is the textbook case for the five-hour rule.

New York JFK. Terminal 4 is Delta's international gateway, and the Sapphire Lounge with Etihad above gate A2, rated 4.7 with four showers, is airside for anyone connecting there between a domestic arrival and an evening long-haul departure.

Washington Dulles. United's hub, and the co-branded Etihad Lounge near A14 is the Chase option. It rates 3.1, the lowest of any lounge in the Chase family, and I would not plan five hours around it.

Atlanta, Charlotte, Houston, Denver, Miami. Centurion only. The Atlanta Centurion on Concourse E rates 4.8 and is the biggest in the network, reachable from any concourse on the Plane Train; Delta Reserve holders get in only when flying Delta that day. Charlotte sits in the D/E connector at 4.6 and catches American's international connections. Houston in Terminal D (4.6) and Denver on Concourse C (4.8) serve United hubs. Miami on Concourse D has four showers and rates 4.6, and Miami is American's gateway to Latin America, where a domestic arrival and an evening departure south can easily sit four or five hours apart. At these airports the Centurion change was a straight loss for anyone who used to stay longer than five hours, and a non-event for everyone else.

What I would take from it

If you hold an Amex Platinum and you routinely had six- or seven-hour connections, your long-layover strategy needs a rethink; a day room or a lounge built for sleeping is now the better answer for the first few hours. If you hold a Sapphire Reserve, you gained two hours at every connecting airport with a Sapphire Lounge, and DFW and Philadelphia are where you will notice it. If you hold a Venture X, the three-hour rule still applies to you on connections, and it is the one place the Capital One lounges lose to both competitors.

For the full side-by-side of the three cards, see our lounge access comparison. Ratings follow our methodology.