IATACodes is a system that provides International Air Transport Association codes for airports, airlines, cities, and aircrafts. Also, it provides information about countries, routes, and timezones. This data can be used for SEO purposes or to improve the functionality of search and meta-search services. Paid users receive real-time flight statistics as well as access to the fr, de, es, it, ru, th, tr languages. This REST API uses API Keys for authentication and provides data in JSON, JSONP, XML, and CSV.