Mega corporate travel agency air transactions processed through ARC in May essentially were flat from a year earlier, down 0.1 percent.

Including American Express, BCD Travel, Carlson Wagonlit Travel, Egencia, HRG and Omega World Travel, the mega agencies' aggregate transaction decline was narrower than the 0.9 percent drop ARC reported for all agencies. The aggregate May transaction volume among "online" agencies fell 5.3 percent year over year, marking a 15th consecutive month of decline, while total transaction count for agencies classified as "other" increased 2.7 percent.