How is DOT On-Time Performance data reported in Diio?

Airline on-time data is reported to the U.S. Department of Transportation (DOT), Bureau of Transportation Statistics (BTS) by the 17 U.S. air carriers that have at least 0.5 percent of total domestic scheduled-service passenger revenues. Airlines are presented at the operating carrier level. This data is available on a monthly basis.

The reporting airlines are:

* Alaska Airlines (AS)

* Allegiant Air (G4)

* American Airlines (AA)

* Delta Air Lines (DL)

* Endeavor Air (9E)

* Envoy Air (MQ)

* Frontier Airlines (F9)

* Hawaiian Airlines (HA)

* Horizon Air (QX)

* JetBlue Airways (B6)

* Mesa Airlines (YV)

* PSA Airlines (OH)

* Republic Airlines (YX)

* SkyWest Airlines (OO)

* Southwest Airlines (WN)

* Spirit Airlines (NK)

* United Airlines (UA)

For more information, please see:

https://www.transtats.bts.gov/DatabaseInfo.asp?QO_VQ=EFD&DB_URL= 

https://www.transtats.bts.gov/ot_reporting.asp