| Field Name | Description | 
|---|
| Year | Year |  | 
| Month | Month of Year | Analysis | 
| Quarter | Quarter (1-4) | Analysis | 
| AirlineID | An identification number assigned by US DOT to identify a unique airline (carrier). A unique airline (carrier) is defined as one holding and reporting under the same DOT certificate regardless of its Code, Name, or holding company/corporation. | Analysis | 
| UniqueCarrier | Unique Carrier Code. When the same code has been used by multiple carriers, a numeric suffix is used for earlier users, for example, PA, PA(1), PA(2). Use this field for analysis across a range of years. | Analysis | 
| UniqueCarrierName | Unique Carrier Name. When the same name has been used by multiple carriers, a numeric suffix is used for earlier users, for example, Air Caribbean, Air Caribbean (1). |  | 
| UniqCarrierEntity | Unique Entity for a Carrier's Operation Region. | Analysis | 
| Carrier | Code assigned by IATA and commonly used to identify a carrier. As the same code may have been assigned to different carriers over time, the code is not always unique. For analysis, use the Unique Carrier Code. |  | 
| CarrierName | Reporting Carrier Name |  | 
| CarrierGroup | Carrier Group Code.  Used in Legacy Analysis | Analysis | 
| SchRevPaxEnplaned | K110 - Scheduled Revenue Passenger Enplaned | Analysis | 
| NonSchRevPaxEnplaned | V110 - Non Scheduled Revenue Passenger Enplaned | Analysis | 
| RevPaxMiles | Z140 - Revenue Passenger Miles | Analysis | 
| AvailSeatMiles | Z320 - Available Seat Miles | Analysis | 
| RADPerformed | Z510 - Revenue Aircraft Departures Performed | Analysis | 
| RADScheduled | Z520 - Revenue Aircraft Departures Scheduled | Analysis | 
| *LoadFactor | Load Factor: Ratio of Passenger Miles to Available Seat Miles | Analysis | 
| DataSource | Source of Data (D=Domestic, I=International) | Analysis |