Map of U.S. Jet Airwas?

Question

Does anyone know where I can find maps (prefferably free) of the jet airways in the U.S.

Mainly the Southern States.

Answer 1

If you know any pilots ask one who just updated his high altitude enroute charts. See if you can have the old one. Won't be update of course so don't use it to navigate. I think HI 3 and 4 cover the southern US but I dont have one here to check.

Answer 2

skyvector.com has sectional charts, high and low altitude enroute charts that can give you a rough idea of where routes are located.

Answer 3

You can order high altitude enroute charts from www.sportys.com.  The complete set (for US) of six charts is $26.70.  I thought they used to sell the charts separately, but going to sportys now, I can not find that option (although you could try calling them).