Ian Shaw / Alamy

No. 2 San Francisco International Airport (SFO)

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Flights Delayed: 21.78%

How much slack can you cut an airport just for fog? SFO has been in the bottom 10 since 2008, and keeps inching closer to the No. 1 worst spot. Perhaps due to that poor visibility, it has the earliest start time for the period in which delays rise above 20 percent: a depressing 10 a.m. Your best strategy here is to leave really early.

Best Time Window: Before 8 a.m.

Worst Time Window: 10 a.m.–10 p.m.

America's Worst Airports for Flight Delays

No. 2 San Francisco International Airport (SFO)

Flights Delayed: 21.78%

How much slack can you cut an airport just for fog? SFO has been in the bottom 10 since 2008, and keeps inching closer to the No. 1 worst spot. Perhaps due to that poor visibility, it has the earliest start time for the period in which delays rise above 20 percent: a depressing 10 a.m. Your best strategy here is to leave really early.

Best Time Window: Before 8 a.m.

Worst Time Window: 10 a.m.–10 p.m.

Ian Shaw / Alamy

America's Worst Airports for Flight Delays

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