took about a week at most for the main missions and jumps etc., but i didn't play it constantly. can't really remember. i know i had portland nearly completed within 4 hours (the first evening of having it), and staunton in a little longer. i think i had shoreside within 4 days. the XC missions and packages took a bit longer as by then i was enjoying the plane and killing people. so you're about right, but soon you will stop playing the missions so much. its called getting all 3 cities!