If you are able to book staff travel your questions should be able to be answered through your staff travel site and are probably not best asked or answered here. In brief, you'll be booking point-to-point non connecting tickets (ie. a ticket on your 'own' carrier from YUL > YYZ and EK ticket from YYZ > DXB - with the added complication of luggage won't be checked through unless you are confirmed on both flights etc.) I assume that you can see loads on the YUL > YYZ sector to know if you are likely to get on? For YYZ > DXB the best way is either make friends with someone who works for EK (they can see loads 72 hours in advance), or use the flydirekt loads FB group, or use the StaffTravveler website. Keep in mind that on staff travel with any airline (particularly an ID90 ticket with OAL) you'll have a low boarding priority so cargo sometimes gets loaded before staff pax.
Last edited by ptr120; Jul 9, 2018 at 4:01 pm