: Located in Terminal D and other terminals, these machines sometimes stock "SIM International" starter packs, though availability for specific US carriers (like T-Mobile) may vary.

: This is the largest electronics retailer at IAH and sells travel SIM cards.

In Houston airports, you can purchase prepaid SIM cards at dedicated electronics stores, travel retail shops, and automated vending kiosks . At , the most reliable options are tech retailers located within the terminals, while William P. Hobby Airport (HOU) has fewer specialized outlets. George Bush Intercontinental Airport (IAH)

: Terminal C (after security) and Terminal E (near Gate E24). Automated Kiosks :

: Upon exiting customs in Terminal E, the Wall Street Journal store has previously been noted to carry SIM cards, though stock may be limited to specific brands. William P. Hobby Airport (HOU)

: While HOU offers various visitor services and automated vending (IVKs), dedicated SIM card kiosks are not as widely documented as they are at IAH. Important Tips for Travelers Where/how to get a new sim card at IAH airport? - Houston

: Often carries prepaid SIM options from carriers like T-Mobile.

: Terminal E (Gate E2) and the Terminal C/D Connector.