A selection, typically at an increased price, added to a travel reservation.
Adjoining rooms
Bordering hotel rooms that do not share a common door.
Advance purchase requirement
Ticket must be purchased a minimum number of days before the flight departs.
Airport access fee
A fee paid to the airport authority by car rental companies for the use of shuttle vehicles. This often appears in customerĂ¢??s car rental bills.
ARC
The Airlines Reporting Corporation - is responsible for supervising payments from travel agencies to airlines along with the manner in which tickets are issued to consumers.
Availability
The total number of seats allowed to be sold at a particular rate.