On-Time Report

Airports › Austin (AUS) › September 2023

Airport month · September 2023

Austin - Bergstrom International in September 2023

79.8%departed on time

BTS: A flight is counted as on time if it arrived less than 15 minutes after its scheduled time. Only carriers with at least 0.5 percent of domestic scheduled passenger revenue report.

In September 2023, reporting carriers scheduled 7,831 domestic departures from Austin - Bergstrom International (AUS). 79.8% left less than 15 minutes late and 78.5% reached their destination on time; 0.8% were cancelled.

Nationally that month, 80.5% of flights departed on time and 80.1% arrived on time, so AUS departures were 0.7 points below the national departure figure.

Flights arriving at AUS that month were on time 79.4% of the time (7,827 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 40%, air carrier 38% and national aviation system 16%.

Every scheduled departure from AUS in September 2023, judged by arrival at the destination.

September 2023 against a year earlier, the airport's year and the nation

MeasureSep 2023Year earlierAUS, 12 months to Jul 2026All reported flights, Sep 2023
Departed on time79.8%—74.2%80.5%
Arrived on time78.5%—75.5%80.1%
Cancelled0.8%—1.2%1.2%
Average departure delay (late minutes only)16.9 min—18.4 min14.1 min
Scheduled departures a day261—24518,978
Scheduled departures7,831—89,507569,338

Airlines that month

Reporting carrierFlightsShareOn timeAvg arrival delayCancelled
WN Southwest Airlines3,18341%78.0%6.6 min0.5%
AA American Airlines1,26816%80.8%12.8 min0.7%
DL Delta Air Lines1,01013%82.3%8.6 min1.4%
UA United Airlines81610%80.6%6.5 min1.0%
MQ Envoy Air6658%81.8%3.0 min0.5%
AS Alaska Airlines2323%84.1%0.7 min0.4%
OO SkyWest Airlines1742%70.7%27.2 min1.1%
NK Spirit Airlines1522%50.7%48.9 min3.9%
B6 JetBlue Airways1362%44.1%64.5 min5.1%
G4 Allegiant Air821%78.0%7.9 min0.0%
9E Endeavor Air691%84.1%32.0 min0.0%
F9 Frontier Airlines270%66.7%15.0 min0.0%

Busiest routes that month

RouteCitiesFlightsOn timeAvg arrival delayCancelled
AUS–DFWAustin to Dallas/Fort Worth42977.9%15.0 min0.7%
AUS–ATLAustin to Atlanta38792.8%-8.4 min0.8%
AUS–LAXAustin to Los Angeles38779.3%13.9 min0.8%
AUS–DENAustin to Denver37882.8%2.9 min0.8%
AUS–PHXAustin to Phoenix28579.3%8.7 min1.1%
AUS–LASAustin to Las Vegas28371.0%15.1 min0.7%
AUS–ORDAustin to Chicago28281.2%4.7 min0.0%
AUS–JFKAustin to New York25666.4%24.5 min3.9%
AUS–BNAAustin to Nashville24281.8%4.1 min0.0%
AUS–DALAustin to Dallas23884.5%0.1 min0.8%
AUS–BOSAustin to Boston19361.1%33.5 min2.6%
AUS–EWRAustin to Newark19065.3%16.9 min3.7%

By scheduled departure hour

On-time share:under 62%6270768288% and over
Share of departures that left less than 15 minutes late, by scheduled hour (local time), September 2023.

Delay causes

BTS cause categoryShare of delay minutesNational, Sep 2023Minutes
Air carrier37.9%36.4%47,821
Late-arriving aircraft40.1%38.3%50,581
National Aviation System15.8%19.9%20,005
Extreme weather6.2%5.1%7,777
Security0.1%0.2%85
126,269 delay minutes on 1,601 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.
← August 2023October 2023 →

Questions and answers

How many flights left AUS on time in September 2023?

79.8% of 7,831 scheduled domestic departures left less than 15 minutes late, and 78.5% reached their destination on time. The national figures that month were 80.5% and 80.1%.

How does that compare with a year earlier?

September 2022 is outside the 36 months on file, or the airport had too few reported flights that month.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for September 2023; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for AUS · methodology · corrections.