Mixed Fares: App vs Site
When I search YYZ to JNB using the AC app, I get lots of options around the $4,000 mark (round-trip). As far as I can tell from the app, they would be J for all four segments (let's say YYZ - LHR on AC and LHR - JNB on SA). There is no indication anywhere that they would be anything other than J.
When I search the same route using AirCanada.com, I get lots of options around the $4,000 mark (round-trip), but many of them are marked as being "mixed cabin" and warning that the LHR-JNB leg (and return) would be in economy.
Should I assume the app simply doesn't have the ability to tell me that one of the legs would be in economy and that I'd only know once the ticket is issued and I see that it's not fare class P or similar? Or is it possible the app can somehow get me in J where the site can't?