Originally Posted by
JamesBigglesworth
Because it costs money to participate. There's no benefit to the airline bottom line so why would they bother when it's not a point of differentiation between carriers?
Nope. It’s not a cost issue. Even Spirit Airlines, an ultra LCC in the US, participates. TSA wants carriers to participate as every passenger that uses PreCheck costs the TSA, and the airlines who pay for it, less than non-PreCheck pax. Maybe it’s a customer data sharing issue with AirNZ.