What is the distance from Susa to Jerusalelm?

As the crow flies, it is 770 miles from Susa to Jerusalem, and the meandering of the desert caravan paths would have made that journey closer to 1,000 miles. At a typical caravan's pace of twenty miles per day, it would have taken him fifty days or so to cross the Zagros Mountains, cross the Tigris and Euphrates rivers, and endure the Syrian Deseret.