ATA report - 12 airlines
Due to the availability of comphrehensive traffic information from BTS, as well as free monthly traffic results on individual carrier Web sites, ATA has ceased publishing monthly traffic to the Web. For those interested in a more detailed report, ATA is pleased to announce the availability of carrier-specific monthly traffic reports for purchase (free-of-charge to ATA Member Airlines or ATA Industry Members). For an annual fee of $200, you'll receive 12 passenger traffic reports and 12 cargo traffic reports with data reflecting participating ATA airlines. Results for a given month are usually available within 25 days of its completion. To order, please visit ATA Publications.
BTS report - more than 90 airlines
The Bureau of Transportation Statistics publishes monthly passenger traffic data (free-of-charge) reflecting 100 percent of scheduled operations for U.S. airlines reporting "T-100 Market" data. Data elements include passengers enplaned, revenue passenger miles (RPMs), available seat miles (ASMs), load factor, flight stage length and passenger trip length. BTS reports include summary tables for domestic and international traffic plus "Top 10" airline and airport rankings. As noted in its data release calendar, results for a given month are usually available within 75 days of its completion.