I realize the fare amounts will be different for a NW employee traveling on DL JFK-LYS-JFK than for an AA employee, but I found that the ZM fare plus taxes on the JFK-LYS was $86 and for LYS-JFK it was $128.70, the difference is due to departure taxes ($18.60 ex US and $57.70 ex FR). No where near the 326 originally posted.