Squowk holds a full database of informations about airports. Some of those informations are use by various systems of the site.

However if you took-off/landed outside a "registered airport" you can just enter the name, location or other informations in the fields 'departure' and/or 'arrival' and Squowk will register that information.

Please note that some achievements, and airports stats will not be updated if you insert a non-registered airport.