Reciprocal agreement by two or more airlines to offer their passengers single-booking, single-ticketing, and if there is no stopover, single check-in flights to a destination only one of them serves, all with no loss of frequent-flier mileage. In this agreement, the airlines share in all legs of the flight, using the same two-letter code used by travel agents that identifies the carrier in the Global Distribution System (GDS).

• ADMINISPHERE
• ADMINISTER
• ADMINISTER
• ADMINISTERED PRICE
• ADMINISTRATION
• ADMINISTRATION
• ADMINISTRATION BOND
• ADMINISTRATION OF ESTATES
• ADMINISTRATION ORDER
• ADMINISTRATION SUIT
• ADMINISTRATIVE
• ADMINISTRATIVE ACCOUNTING
• ADMINISTRATIVE ACTION
• ADMINISTRATIVE AGENCY
• ADMINISTRATIVE ASSISTANT
• ADMINISTRATIVE BUDGET
• ADMINISTRATIVE CHANGE
• ADMINISTRATIVE COST
• ADMINISTRATIVE DISSOLUTION
• ADMINISTRATIVE HIERARCHY
• ADMINISTRATIVE LAG
• ADMINISTRATIVE LAW
• ADMINISTRATIVE MANAGEMENT SOCIETY
• ADMINISTRATIVE OFFICE
• ADMINISTRATIVE OFFICER