Originally Posted by
guv1976
Are you eligible for entry into the U.S.? There are oneworld carriers that fly into YYC from SEA and ORD. If BA can add those Avios redemptions to the same PNR as a companion voucher booking to either of those airports, then you would be protected in the event of IRROPS.
You might be protected against IRROPS, but you are not protected against additional COVID tests, restrictions, etc. because the US has no international to international flight connections.
I would much rather drive from Toronto to Calgary than book an itinerary that requires a US connection at the moment...