I have also arranged Zone Fares with American Airline under the same
code 49H0BC. This is basically a fixed price ticket from anywhere in
North America to ORD. You must call American Airlines Meeting Services
Desk at 1-800-433-1790 to book and mention 49H0BC code. In general, you
will get a better fare via published best rate with 5%-15% discount
booking on aa.com and enter in our promotion code 49H0BC. However, you
might find zone fare in few cases be cheaper especially if you are
booking on a flight that is close to sold out. The zone fare ticket is also refundable subject to cancellation charge.

From Zone -A- -B- -C- -D- -E- -F- -G- -H-
Cost 430 428 345 442 364 362 430 854
Zone State and/or Province
-A- AZ/CA/NV
-B- CO/MT/ND/SD/UT/WY/SK
-C- IA/IL/IN/KS/KY/MI/MN/MO/NE/OH/WI
-D- AR/LA/NM/OK/TX
-E- CT/DC/DE/MA/MD/ME/NH/NJ/NY/PA/RI/VA/VT/WV/NS/ON/QC
-F- AL/FL/GA/MS/NC/SC/TN
-G- WA/OR/ID/AB/BC
-H- HI