Legit Reviews posted a review on the Gogo Inflight Internet Speed
>> Gogo Inflight Internet Speed Tested and Used
Wi-Fi access on airplanes is quickly becoming the norm and at least 150 American Airlines planes now now offer the service. The wireless service that us being used on AA flights is called Gogo Inflight Internet and it turns a commercial airplane into a Wi-Fi hotspot! Read on to see how fast it is and if it works well.
As soon as we got the Gogo Inflight Internet service up and running, we went to speedtest.net and ran a broadband internet speed test and then did three more at roughly one hour intervals. The results showed that we were getting anywhere from 1.2 to 2.1 Mb/s when it comes to download speeds and 0.1 to 0.36 Mb/s for upload speeds...
>> Gogo Inflight Internet Speed Tested and Used