WiFi & Connectivity
Stay connected at San Francisco International Airport — free WiFi, eSIM options and local data for United States.
Airport WiFi at SFO
No registration required — connect and browse immediately.
US carrier coverage is uniformly strong at SFO, so an eSIM (Google Fi, T-Mobile, Airalo's US plan) mainly saves money rather than fixing a signal problem — activate it before or right after landing.
If the main network feels congested near a crowded gate, look for the separate '#SFO Free 5GHz WiFi' option on compatible devices — it's less commonly used and noticeably faster.
eSIM for United States
Skip the SIM card queue. Activate a data plan before you land and connect the moment you arrive in San Francisco.
Recommended · eSIMPlans from major carriers — instant activation, no physical SIM needed. Works on any unlocked eSIM-compatible device.
Browse United States plans →LandingAtlas may earn a commission when you purchase through affiliate links. This does not affect the price you pay.
Your Connectivity Options at SFO
Available throughout most terminals. Speeds vary — suitable for messaging and email, less reliable for video calls.
Buy before you travel. Instant activation, no queues, works from the moment you land in San Francisco.
Available at airport shops and telecom kiosks in the arrivals hall. Requires a passport — bring yours.
Airport lounges offer fast, dedicated WiFi. Access via Priority Pass, airline status or day pass.