The 5 best -- and worst -- airports for cell phone service

Research firm RootMetrics measured mobile service quality at America's 50 busiest airports for a new report.

The worst: #1 San Diego

gallery airport san diego

Median download speed:

Verizon: 3.2 Mbps

AT&T: 2.7

T-Mobile: 2.6

Sprint: 0.3

See the full list

  @jtotoole - Last updated August 13 2014 10:50 AM ET

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