Some time ago I recall seeing that a little-explored option exists for a person to get from one location to another by air. Most folks who are passengers book on a commercial airline; I'm told there are a few who contact a general aviation airport to determine which private pilot qualified to carry passengers is flying to the destination they would also like to visit, and that prospective passenger offers to split the fuel tab if there is room and the pilot is amenable. Is this a viable option for travel? Is there a cost savings in this situation or would it wind up costing about what a commercial ticket would run?