Following Your Team Isn't One Trip. It's Clearing Three Borders.

This is the first World Cup spread across three countries — the US, Canada, and Mexico — and each one is its own immigration system that ignores the other two. A US visa or ESTA gets you exactly nowhere in Canada or Mexico; a quick hop to Cancún or Toronto does **not** reset your 90 days in the US; and there is no "Fan ID" or special World Cup visa, whatever anyone selling one tells you. For most fans coming from visa-waiver countries it's a three-item checklist, not chaos. But the traps that strand people aren't the obvious ones — so here's the map before you buy the flights.