San Francisco International Airport (SFO) offers some of the fastest free airport Wi-Fi in the United States. Whether you are in the Harvey Milk Terminal 1 or the International Terminal, staying connected is free and seamless. Use this guide to connect quickly and troubleshoot any issues.
SFO provides free, unlimited Wi-Fi in all terminals, both pre- and post-security.
SFO is a leader in airport connectivity, having recently upgraded to Wi-Fi 6 standards in many zones.
| Terminal | Key Connectivity Spots | Best For |
| Terminal 1 (Harvey Milk) | Near Gates B1–B27 | Newest infrastructure, fastest speeds. |
| Terminal 2 | Near Gate D1, D14 &SkyTerrace | Business travelers; quiet workstations. |
| Terminal 3 | Near Gates E5, F4 & F16 | High-capacity zones for large crowds. |
| International A & G | Main Hall & Gate Lounges | Long-haul travelers; robust 5GHz coverage. |
If the login page doesnot appear automatically, try these 2026 fixes:
Clear Cache: If you’ve visited SFO before, your phone may be trying to use old credentials. Clear your browser cache or "Forget" the network and reconnect.
Call Support: If you experience technical issues, call SFO Wi-Fi support at 1-855-415-WIFI.
Is there a time limit for SFO Wi-Fi?
No. Unlike many international airports, SFO offers unlimited free access. You may be asked to re-accept terms every 4 hours, but there is no total daily limit.
Is SFO Wi-Fi secure?
Like all public Wi-Fi, it is an open network. For sensitive activities like banking, we recommend using a VPN after you have successfully bypassed the initial login screen.
Are there free charging stations at SFO?
Yes. In addition to the "Traveler's Workstations," most gate seating at SFO now includes integrated AC power outlets and USB ports.