High Quality Content by WIKIPEDIA articles! OAG, formerly Official Airline Guide, is a United Kingdom based business providing aviation information and analytical services sourced from its proprietary airline schedules, flight status, fleet, MRO and cargo logistics databases. OAG is best known for its airline schedules database which holds future and historical flight details for more than 1,000 airlines and over 4,000 airports. This aggregated data feeds the world’s global distribution systems and travel portals, and drives the internal systems of many airlines, air traffic control systems, aircraft manufacturers, airport planners and government agencies around the world. The organisation operates globally and has offices in Europe (UK and Netherlands), Asia (Singapore, China and Japan) and the Americas (United States and Canada). OAG is organised into three customer-facing channels: OAG Aviation, OAG Cargo and OAG Travel.