2. San Francisco International
san francisco worst airports
% of on-time departures: 73.3%
% of on-time arrivals: 70%

The tech boom has brought a flood of passenger traffic to San Francisco International, which serves both San Francisco metro area and the Silicon Valley.

It's also a major gateway to Asia, with nearly 900,000 travelers flying to Hong Kong last year alone. All told, 44 million passengers used the airport in 2012, an 8.4% gain over 2011.

About two-thirds of all delays in 2012 were attributed to extreme weather, which included the area's well-known fog.


Source: United States Department of Transportation's Ranking of Major Airport On-Time Departure Performance January 1-December 31, 2012.
  @CNNMoney - Last updated May 02 2013 10:37 AM ET
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