But, but, but Dijkstra's algorithm solves a completely different task: find the shortest route between two points. And while you can construct graphs where there is a pair of points where the shortest path between them actually visits all other points, that's situation most traveling salesmen won't find themselves in. (Except maybe in Chili)
Either the OP is solving a different problem than the travelling salesman, or he's using something else than Dijkstra's. | [reply] |

I didn't do the analysis and I am guess but it should look something like this. On the whole graph, compute the shortest distance between two points in the graph(From the start point). Then the next shortest distance point from that and so on. Such that already visited points are removed from the graph every time a shortest distance point from the current point is computed.
Every time you find the shortest distance between two points, and reach the destination point. The source point is removed. At each step you end up having a smaller graph. There fore lesser points to work on each step. While at the same time you compute shortest distance point available from the current point.
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