Business travelers are spending more per trip and traveling for longer periods of time than they were a year ago, a Travel Leaders Corporate analysis of its clients' activities shows.

According to the study, which examined more than 3 million reservations during the second quarter, the average domestic trip taken by a Travel Leaders Corporate customer this spring cost $1,028, up 6% from the second quarter in 2014.

The higher costs were fueled by a year-over-year increase of 14% in the length of the average trip. Domestic business trips taken by Travel Leaders Corporate clients now last more than three days on average.

Travel Leaders Corporate calculated the costs by factoring what companies pay for airfare, hotels and rental cars. Rental car rates in the second quarter of this year were down 7% from a year earlier, continuing a trend that began in 2011. Airfare also was down, dropping 3% from last year to an average of $454 per domestic trip. Still, plane tickets remain costlier than they were from 2011 through 2013.

Hotel costs climbed 2% from last year, with the average client of Travel Leaders Corporate spending $413 on lodging during their trip.

International trips, however, have gotten less expensive, the analysis shows. The average cost of an international trip taken by a Travel Leaders Corporate client during the second quarter dropped 2%, to $2,459.

JDS Travel News JDS Viewpoints JDS Africa/MI