Mega corporate travel agency air transactions processed through ARC in September dropped 5.1 percent year over year,

the third month in the past four to see declining volumes. Including American Express, BCD Travel, Carlson Wagonlit Travel, Egencia, HRG and Omega World Travel, mega agencies last month had an aggregate transaction decline that was slightly less than the 5.5 percent drop that ARC reported for all U.S. agencies.