Wi-Fi at John Glenn Columbus International Airport (CMH)
Columbus, Ohio KCMH #49 US airport by passengers
What to expect from Wi-Fi at CMH and how to stay safe on public networks.
Wi-Fi at CMH
Free high-speed Wi-Fi runs throughout the terminal on CMH Public Wi-Fi.
- The airport says its Wi-Fi is one of the fastest in a US airport. One independent speed test measured 173.52 Mbps.
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.
Frequently asked questions
What is the Wi-Fi network at Columbus airport?
CMH Public Wi-Fi is free and works throughout the terminal.