Originally Posted by
totti
YUL/YYZ - DUS mainline service
LH operated YYZ-DUS up until ~four years ago. And I think AC operated a (direct?) YYZ-DUS flight maybe ~20 years ago?
I'm sure there'd be sufficient demand to fill a once-daily 788 (or similar) DUS-YYZ/YYC, but at the same time I doubt it would increase revenues much given that pax can choose between up to six flights a day ex-FRA (plus flights from various other European hubs).