This is a New York based Corporation, that is privately owned and registered to offer up to date information on various flights and airports. Expertflyer.com has contracted GDS service providers to give them authentic and reliable information always. Some of the GDSs are Apollo, Galileo, Sabre and Abacus among others. The expert flyer offers services such as redemption booking, seat map and flight availability. The information provided is real time for over 400 airlines. Information on the best seat availability is also available at expertflyer.com.