Airliners used the same basic system for a long time... and it was, in fact, an airline incident that lead the US gov't to declassify GPS so trans-oceanic flights could be tracked better.

To this day though, when I pilot starts up an airliner, they fire up that old system as a backup, its programed down to the gates at the airports, so they set their departure gate and as soon as they start moving, it tracks, through gyros, the whole flight. There can be a lot of drift in the system though, which is what lead to KAL007 being shot down by the soviets, killing almost 300 and prompting Reagan to declassify GPS to prevent that same kind of thing from happening again...