Originally Posted by
flyercity
Lots of different fares, e.g. NYC-FRA, lots of good fares on AA, nothing on ITA, and neither on Google Flights.
Just saw that there is a similar issue with flights to SE Asia, say, ex YYZ.
Seems like ITA isn't capturing all of the AA routes and fares.
An air carrier can restrict certain fares to be sold only by selected agents, including just itself. ITA only shows public fares.
CX does this a lot.