Travel Leaders Corporate clients on average paid $534 for a domestic U.S. air ticket during the second quarter,

up roughly 5 percent from a year earlier. The average international ticket cost decreased by a similar percentage to $2,174. "For the second straight quarter, we're seeing softening demand in the international business travel market that is directly related to lingering economic uncertainty in Europe," according to Travel Leaders Corporate president David Holyoke. "We are not seeing that uncertainty in Europe affect airfares in the United States yet. Still, we're experiencing growth in these segments, as our clients booked over 3 percent more domestic air tickets and 12 percent more international air tickets year over year." Travel Leaders said its second-quarter data is based on more than "750,000 actual bookings."