A Description of data fields, data definitions, and some context on changes between the different Commodity Flow Surveys

Downloadable Tables by Origin or Destination. Filterable by Year, Commodity and Mode.

Release Note

BTS is withholding the scheduled release of the passenger and combined indexes for January. The passenger index is a statistical estimate of airline passenger travel and other components based on historical trends up to December 2019. As a result, the estimates have yet to fully account for the impact of the coronavirus. Air freight is also a statistical estimate. Since air freight makes up a smaller part of the freight index, the freight TSI is being released as scheduled.

Description

Statisticians use the process of seasonal-adjustment to uncover trends in data. Monthly data, for instance, are influenced by the number of days and the number of weekends in a month as well as by the timing of holidays and seasonal activity. These influences make it difficult to see underlying changes in the data. Statisticians use seasonal adjustment to control for these influences.

Controlling of seasonal influences allows measurement of real monthly changes; short and long term patterns of growth or decline; and turning points. Data for one month can be compared to data for any other month in the series and the data series can be ranked to find high and low points. Any observed differences are “real” differences; that is, they are differences brought about by changes in the data and not brought about by a change in the number of days or weekends in the month, the occurrence or non-occurrence of a holiday, or seasonal activity.

Number of commercial aviation departures, domestic and international, by day. Also the number of people screened by TSA in total and at large hub airports by day.

The number of Persons Screened by TSA, US Domestic Flight Departures, and US International Flight Departures by day from January 1, 2019 forward. Bonus columns for filtering include Week Number and Year.

Number of air travel passengers boarded and denied boarding by month

Enplaned baggage and wheelchairs and scooters mishandled by commercial air carriers.