US airlines are changing the way they approach travel, focusing on their highest-paying passengers. This shift leads to vastly different experiences for travelers on the same flight.

Some passengers have access to priority security lanes and exclusive lounges with premium amenities. They also get to board early and enjoy more spacious seating.

In contrast, other travelers face a more cumbersome process, waiting in lines and dealing with cramped seating. For more information on these changes, readers can refer to the source.