Can I enter 4 letter codes into the Layover Entry Page?

EZPerDiem accepts both 3 and 4 letter codes.  Note that 4-letter ICAO codes might be completely different from their respective IATA code.  This is true for most international locations (OCONUS).  For example, Mexico CIty's IATA code is (MEX), and it's ICAO code is (MMMX).  In the United States (CONUS), the ICAO code is typically found just by placing a "K" in front of the IATA code.  For example, Cleveland Hopkins' IATA code is (CLE), and its ICAO code is (KCLE).

Not all airports have an ICAO code.  If you find a missing or incorrect code, simply send us a message to add it.