When 2 character airline codes were first established it was not envisaged there would be so many airlines in the world needing their own code. A better solution is to use a 3 character code but too many of the reservation systems of the world are hard wired to use 2 characters now. The result is that some small regional airlines share a 2 character code with another small regional airline, usually where the countries of operation are very different.
Loganair and Equatorial Congo both use the 2 letter code LC. One operates in Scotland while the other operates in central Africa. Some reservation system can't handle the idea of 2 character codes being shared on occasions like these
Last edited by davidjohnson6; 28th Apr 2013 at 15:03.