Wi-Fi at San Francisco International Airport (SFO)
San Francisco, California KSFO #10 US airport by passengers
What to expect from Wi-Fi at SFO and how to stay safe on public networks.
Wi-Fi at SFO
SFO provides free Wi-Fi throughout all terminals.
- Connect to the airport guest network. Coverage is generally strong in the gate areas.
Reviewed October 8, 2026. Confirm details on the official airport website. Spotted a change?
Staying safe on airport Wi-Fi
- Connect only to the network name published by the airport, and be wary of lookalike names.
- Skip online banking on public Wi-Fi, or use a VPN or your phone hotspot.
- Turn off automatic Wi-Fi joining so your phone does not connect to open networks by itself.