Dubai to San Francisco would go right over the North Pole. The closest route currently in operation appears to be EWR-HKG.
This website will let you see for yourself:
http://gc.kls2.com/cgi-bin/gc?PATH=DXB-SFO
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"You can't be a real country unless you have a beer and an airline. It helps if you have some kind of a football team, or some nuclear weapons, but at the very least you need a beer." - Frank Zappa (1940-93)