Heres a little info. XC for your training and part 91 has the 50 nm requirement for it to be comsidered xc. A lot of Part 135 companies want 500 cross country time. Defined under part 135 xc is airport to airport. Helps when you are and instructor and have you students do touch and gos and an airport 10 miles away. It can be considered xc. Just my .02.