ID90 or Not?

[Karado58]

Hello,
Can someone please explain what is an ID90, related to an airlines requirement to have a JetBlue employee fly on it?
An example is United, they require an ID90.

Some airlines such as US Airways require no ID90.

Can someone please explain the difference?

Thank you.
Joseph

 

[BoeingBoy]

The IDxx is from a reciprocal interline agreement between 2 airlines for the employees of one to travel on the other. As a hypothetical example, Jetblue and Airtran reach an agreement saying that each's employees can travel space-available on the other carrier for 10% of the full coach fare - that's a 90% discount for employees (the ID part) hence ID90. There can be ID75, ID95, etc - it depends on the agreement between the two carriers.

That type of interline agreement is being replaced with the Zonal Employee Discount (ZED) agreement which replaces the percentage discount with a mileage zone based charge (hence the "zonal" name). If carrier A and B have reached a ZED agreement, there would be a ZED fare but no longer any IDxx discounts for employees of those carriers wanting to ride the other.

Until every interline agreement between carriers is a ZED agreement, you can have an employee from carrier A and another from carrier B wanting to ride carrier C's flight. The carrier A employee might have an ID90 ticket while the carrier B employee might have a ZED ticket.

To add to the confusion, many carriers have reciprocal agreements which make the cockpit jump seat available to pilots from other carriers (and allow them to sit in the cabin if there's empty seats). So pilots often travel on other carriers with neither an IDxx or ZED ticket. Likewise, some carriers have reciprocal agreements which give other carrier's flight attendants access to the cabin, in which case they would also not need an IDxx or ZED ticket.

Jim