I am looking for a free source of fare routing information. Example: I have something like JFK-LAX on UA with a given fare and would like to pull the routing information as stored in the GDS. Basically I would like to see the complete routing information (MPM or published routes). Does anybody know a free interface to this? I am using Expertflyer but am looking for a free/open source for this information. In the end I would like to automate searches without generating too much traffic. Any help is appreciated!