Southwest this week began testing their own in-flight wi-fi service, based on a satellite connection from Row 44 . It’s on one plane now with more coming soon, and right now, it’s free. Southwest is using a satellite-based system from Row 44, and not the cellular connection used by most other airlines with Aircell’s GoGo service.

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Southwest Airlines’ In-Flight Wi-Fi Free While In Beta [In-flight Wi-fi]