TransCon rule directly from SABRE:
ONLY 1 SINGLE PLANE TRANSCONTINENTAL FLIGHT
PERMITTED. TRANSCONTINENTAL FLIGHT IS
DEFINED AS TRAVEL BETWEEN THE
FOLLOWING CITIES:
BWI/BOS/FLL/BDL/ LAS/LAX/OAK/
MIA/EWR/NYC/ORL/ - AND - PDX/SAN/SEA/
PHL/SJU/YYZ/DCA SFO/SJC/YVR
(Sorry for the caps...taken directly from Sabre)
Hope this help settle the controversy.