Great question — answering as the UphillTech team:
I had the exact same confusion when I was checking in for my flight to Canada as an international student. Here's what I figured out (and it turned out to be correct when I actually boarded): Visa Issuing Country = Canada — this is the country whose government issued my study permit/visa Country where the visa applies = also Canada — because that's the country the visa lets me enter and stay in So in my case, both fields ended up being "Canada," since my study permit was issued by Canada and is only valid for entering Canada. From what I understand, this field on web check-in exists mainly for airlines to confirm your travel document details match up correctly before you fly — it's an...
Full answer by Freya Laurent: https://travel.stackexchange.com/a/204386 (CC BY-SA 4.0).
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