Why the ‘O’ in San Francisco’s Airport Code, SFO?

Jun 29, 2017 · 7 min

0:00-7:10

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Why the "O" in SFO? And why is one of Chicago's airports coded ORD? And IAD for Dulles?

Reported by Jessica Placzek. Bay Curious is Olivia Allen-Price, Vinnee Tong, Paul Lancour, Suzie Racho, Penny Nelson and Julia McEvoy. Theme music by Pat Mesiti-Miller.

Ask us a question at BayCurious.org.

Follow Olivia Allen-Price on Twitter @oallenprice.

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