Wi-Fi at St. Louis Lambert International Airport (STL)
St Louis, Missouri KSTL #35 US airport by passengers
What to expect from Wi-Fi at STL and how to stay safe on public networks.
Wi-Fi at STL
Free Wi-Fi is provided on the STL_free_wifi network throughout both terminals. Free access is limited, and after the initial free period you can buy a daily package.
- Sources differ on how long the free period lasts, so plan to download what you need before you go through security.
- Lounges and gate areas also have the Wi-Fi network.
Reviewed October 9, 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.