Photos: Airlines upscaling amenities for high-paying fliers

The business-class cabin aboard an American Airlines flight from New York to London in 2013.

Drinks and food are complimentary at the American Airlines Flagship Lounge at John F. Kennedy Internationsl Airport. Flagship Lounges have controlled access within American Airlines Admirals Clubs and are reserved for first class passengers and AAdvantage Executive Platinum elite members traveling on interntional flights.

A Cadillac chauffeur service is offered by American Airlines to its elite passengers at Los Angeles International Airport.

A passenger checks in at the American Airlines Flagship Check-in at John F. Kennedy International airport in 2013.

In June, Delta completed a $229-million terminal upgrade at LAX that includes a private curbside entrance for the carrier’s biggest spenders.

A walk-up bar with an assortment of snacks, sandwiches and sweets is offered in business class aboard an American Airlines flight from London to L.A.