On-Time Report

Airports › Austin (AUS) › April 2025

Airport month · April 2025

Austin - Bergstrom International in April 2025

79.3%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 April 2025, reporting carriers scheduled 7,311 domestic departures from Austin - Bergstrom International (AUS). 79.3% left less than 15 minutes late and 80.0% reached their destination on time; 0.7% were cancelled.

Nationally that month, 80.6% of flights departed on time and 79.5% arrived on time, so AUS departures were 1.3 points below the national departure figure.

A year earlier, in April 2024, the airport had 7,304 departures with 76.3% leaving on time: a change of +3.0 points, with flights up 0%.

Flights arriving at AUS that month were on time 80.1% of the time (7,314 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 45%, air carrier 29% and national aviation system 20%.

Every scheduled departure from AUS in April 2025, judged by arrival at the destination.

April 2025 against a year earlier, the airport's year and the nation

MeasureApr 2025Apr 2024AUS, 12 months to Jul 2026All reported flights, Apr 2025
Departed on time79.3%76.3%74.2%80.6%
Arrived on time80.0%78.0%75.5%79.5%
Cancelled0.7%0.5%1.2%0.8%
Average departure delay (late minutes only)15.4 min16.9 min18.4 min14.1 min
Scheduled departures a day24424424519,465
Scheduled departures7,3117,30489,507583,950

Airlines that month

Reporting carrierFlightsShareOn timeAvg arrival delayCancelled
WN Southwest Airlines3,23644%80.1%3.9 min0.4%
AA American Airlines1,02514%75.0%18.9 min1.4%
DL Delta Air Lines99414%84.6%0.2 min0.5%
UA United Airlines86212%85.0%1.8 min0.3%
OO SkyWest Airlines5798%79.3%6.0 min0.7%
AS Alaska Airlines1762%86.4%-5.9 min0.6%
F9 Frontier Airlines1472%67.3%16.8 min0.0%
MQ Envoy Air1182%73.7%3.6 min9.3%
NK Spirit Airlines921%73.9%15.6 min1.1%
G4 Allegiant Air481%58.3%47.9 min0.0%
B6 JetBlue Airways300%60.0%17.0 min3.3%
YX Republic Airline40%75.0%204.8 min0.0%

Busiest routes that month

RouteCitiesFlightsOn timeAvg arrival delayCancelled
AUS–DFWAustin to Dallas/Fort Worth42370.0%18.0 min4.3%
AUS–DENAustin to Denver39677.0%5.8 min1.3%
AUS–ATLAustin to Atlanta36380.7%4.3 min0.8%
AUS–LAXAustin to Los Angeles35182.9%1.8 min0.3%
AUS–PHXAustin to Phoenix31681.6%5.5 min0.0%
AUS–LASAustin to Las Vegas27280.5%4.7 min0.0%
AUS–BNAAustin to Nashville26573.6%9.1 min1.5%
AUS–ORDAustin to Chicago26583.8%1.3 min0.8%
AUS–IAHAustin to Houston22980.3%3.5 min0.0%
AUS–MCOAustin to Orlando22281.1%4.1 min0.0%
AUS–DALAustin to Dallas20081.5%1.1 min1.5%
AUS–SFOAustin to San Francisco19690.8%-10.4 min0.0%

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), April 2025.

Delay causes

BTS cause categoryShare of delay minutesNational, Apr 2025Minutes
Air carrier29.4%32.7%29,493
Late-arriving aircraft45.3%39.4%45,406
National Aviation System19.8%22.2%19,851
Extreme weather5.4%5.5%5,408
Security0.1%0.2%90
100,248 delay minutes on 1,393 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.
← March 2025May 2025 →

Questions and answers

How many flights left AUS on time in April 2025?

79.3% of 7,311 scheduled domestic departures left less than 15 minutes late, and 80.0% reached their destination on time. The national figures that month were 80.6% and 79.5%.

How does that compare with a year earlier?

In April 2024, 76.3% of 7,304 departures left on time and 0.5% were cancelled, against 79.3% and 0.7% in April 2025.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for April 2025; 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.