Welcome to the FAQ website covering document topics in Canada.
I am going for a vacation to Manilla on April 27 2017 and will be back in Canada on may 19 2017. And my pr card will expire on November 2017. Do I need to renew my or card already or if not can I choose any airlines or it must be a Philippine airline?
Your PR Card is valid until the day after it expires, meaning that you can re-enter Canada on any day through the expiry date.
The government of Canada does not care which airline you use to travel to or from Canada.