I find this part interesting:
In many instances, a lower-priced fare may be found by shopping online at aircanada.com. Bereavement fares are intended to provide maximum flexibility for passengers who must travel during a time of family emergency but are not necessarily the lowest fares available.
*International travel: Applies to M and H Economy Class booking codes. Not available for International Business Class or international travel in Premium Economy Class.
** Travel within North America: Applies to all booking classes. If your departure and return dates are more than 10 days apart, we’ll book your one-way ticket to your destination and ask you to call us back when you’re ready to book your return.