Probably an average of at least an extra second (1000 milliseconds) added to each direction as opposed to a "land" line. nitro
http://www.broadbandreports.com/faq/2001 Q: What are the average ping times for satellite? (#2001) A: Latency for satellite connections is very high due to the distance the satellites are from earth. One-way systems typically get pings in the 400-500ms range with 450ms about average and two-way systems in the 690-1150ms range, with 850ms about average. That FAQ (http://www.broadbandreports.com/faq/satellite) has lots of good stuff if you are considering satellite