Where are the Airline and Airport codes/names sourced from?

Our list of airline and airport codes/names is sourced from IATA publications, and augmented with ICAO data, industry knowledge and colloquial names.

• If an airline has a 2-character designator, then the data comes from IATA.
• If an airline has a 3-character designator, then the data comes from ICAO.
• All airports are sourced from IATA information and use 3-character codes.
• We do not have any FAA or ICAO 4-character airport codes.

Unfortunately, the DOT often uses proprietary designators for airlines that file T100 and Form41 data. When possible we translate these DOT-specific codes into known IATA or ICAO designators.

Please note that many airlines and airports have lengthy legal names but are known by a common alias. In these case, we will often display the common name in reports, and cite the full name in the Reference>Airline report's "Notes" field.