Codeshare is a business arrangement where two or more airlines publish and market the same flight under their own airline designator and flight number as part of their published timetable or schedule. The flight is operated by one airline (the "administrating carrier") while seats are sold for the flight by all cooperating airlines using their own designator and flight number. For global network carriers the benefits of such an extensive setup justify its costs. For domestic and many low-cost carriers, the cost appears to be an issue.

The premise 1. The airline seat is a highly ‘perishable’ product 2. The domestic business environment is highly competitive, with multiple airlines chasing a relatively small (and economically depressed) market. 3. What can you do to optimize the ‘uptake’ of your capacity?

Main motivation of codeshare agreements and interlining among airlines is to boost business for both airlines by increasing the number of flights that passengers have access to. International Clearing House has set-off rights against any other funds or credits anywhere in other IATA settlement systems (BSP, CASS etc.) ICH settlement success rate is over 99.9999% between 2014 & 2019