US low-cost carrier Allegiant Air's passenger revenue per available seat mile (PRASM) declined 1.4% in August compared with the same month last year.
The carrier's passenger traffic for its scheduled services grew by 17.6% during the month, while capacity increased by 19.8%, leading to a 1.7 percentage point decline in the load factor to 90.6%, says the airline.
Passenger numbers in August increased 14.3% year-on-year to 547,000.
Allegiant expects its scheduled capacity to grow 22% in September and by 14% to 16% in the third quarter. It estimates that its scheduled capacity will grow by 22% to 26% in the fourth quarter.