I have 5 eupgrade credits to spare if one is flying on January 6, 2023 - YYZ-YWG (AC 261) and January 7, 2023 YWG-YYZ (AC 262). I'm off to see the Tampa Bay Lightning vs. Winnipeg Jets.
I am guessing a Latitude fare should be do-able, but unsure if a Comfort fare or High Flex can be upgraded with 5 credits.
Added to say that I can only sponsor at the gate as my sister's my nominee already.