NYC to Buenos Aires: 5295 miles. Over 10hrs of flight time.
NYC to London: 3459 miles. Over 7hrs of flight time.
A comparison
London to Istanbul: 1551 miles
London to Moscow: 1552 miles
LA to NYC: 2445 miles
A very plausible Vancouver v. Fluminese (Rio de Janeiro): 6,973 miles
Vancouver to Tokyo: 4,689 miles
Vancouver to Barcelona: 4,957 miles
Vancouver to Madrid: 5,223 miles
Why not just open it up to the entire World and not call it the FIFA Club World Cup, ha?