A

GDS. 1. Availability; will display flights with seats available. 2. An arunk or surface segment of a trip. 3. American plan. 4. Code for a class of service, usually superior.

A la carte

Fr. Literally, "from the menu." 1. In restaurants, indicates that each dish ordered will have a separate price. Also, used in tour literature to indicate a choice of dishes will be available. 2. By extension, any travel products that can be purchased separately, as opposed to as a package.

AA

1. American Airlines. 2. Alcoholics Anonymous.

AAA

American Automobile Association

AAAE

American Association of Airport Executives.

AACO

Arab Air Carriers Organisation.

AACVB

Asian Association of Convention and Visitors Bureaus

AAD

Agent automated deduction

AAHOA

Asian American Hotel Owners Association.

AAPA

American Association of Port Authorities.

AAR

Association of American Railroads.

AARP

American Association of Retired Persons. Many hotels and other suppliers offer reduced AARP rates.