15. So it's not PA (had considered but couldn't think of any route with that many stops via the U.S.A.) and since the routing is not via Asia, it probably isn't by N. America which leaves South America. Only one that might have gone to NAN would be LAN Chile so connection at SCL with the 2nd leg being SCL-IPC-PPT-NAN. 1st leg: ORY-MAD-DKR-GIG-SCL.