Austin - Bergstrom International in April 2026

76.9%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 2026, reporting carriers scheduled 7,647 domestic departures from Austin - Bergstrom International (AUS). 76.9% left less than 15 minutes late and 77.0% reached their destination on time; 0.6% were cancelled.

Nationally that month, 79.1% of flights departed on time and 78.9% arrived on time, so AUS departures were 2.2 points below the national departure figure.

A year earlier, in April 2025, the airport had 7,311 departures with 79.3% leaving on time: a change of −2.4 points, with flights up 5%.

Flights arriving at AUS that month were on time 79.5% of the time (7,645 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 39%, late-arriving aircraft 37% and national aviation system 21%.

On time 77.0%
Arrived 15+ minutes late 22.3%
Cancelled 0.6%
Diverted 0.1%

Every scheduled departure from AUS in April 2026, judged by arrival at the destination.

April 2026 against a year earlier, the airport's year and the nation

Measure	Apr 2026	Apr 2025	AUS, 12 months to Jul 2026	All reported flights, Apr 2026
Departed on time	76.9%	79.3%	74.2%	79.1%
Arrived on time	77.0%	80.0%	75.5%	78.9%
Cancelled	0.6%	0.7%	1.2%	0.9%
Average departure delay (late minutes only)	15.8 min	15.4 min	18.4 min	14.5 min
Scheduled departures a day	255	244	245	19,931
Scheduled departures	7,647	7,311	89,507	597,919

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
WN Southwest Airlines	3,325	43%	73.1%	8.0 min	0.2%
DL Delta Air Lines	1,139	15%	83.5%	1.2 min	0.4%
AA American Airlines	1,037	14%	78.4%	11.8 min	1.4%
UA United Airlines	942	12%	79.5%	7.7 min	0.6%
OO SkyWest Airlines	663	9%	79.8%	10.2 min	0.0%
AS Alaska Airlines	144	2%	93.1%	-11.9 min	0.0%
F9 Frontier Airlines	134	2%	77.6%	13.7 min	1.5%
NK Spirit Airlines	93	1%	50.5%	35.9 min	11.8%
B6 JetBlue Airways	81	1%	75.3%	18.7 min	0.0%
MQ Envoy Air	46	1%	73.9%	11.6 min	2.2%
G4 Allegiant Air	34	0%	76.5%	6.9 min	0.0%
OH PSA Airlines	7	0%	42.9%	50.4 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
AUS–DEN	Austin to Denver	447	83.9%	-1.1 min	0.2%
AUS–DFW	Austin to Dallas/Fort Worth	404	75.5%	14.3 min	2.0%
AUS–LAX	Austin to Los Angeles	383	79.6%	6.7 min	0.3%
AUS–ATL	Austin to Atlanta	364	81.3%	0.9 min	0.3%
AUS–PHX	Austin to Phoenix	317	81.4%	15.1 min	0.3%
AUS–ORD	Austin to Chicago	294	66.7%	26.9 min	3.4%
AUS–BNA	Austin to Nashville	266	73.3%	11.5 min	0.0%
AUS–LAS	Austin to Las Vegas	247	73.3%	10.5 min	0.8%
AUS–SAN	Austin to San Diego	243	72.0%	9.5 min	0.0%
AUS–MCO	Austin to Orlando	239	76.6%	6.0 min	0.8%
AUS–IAH	Austin to Houston	230	77.0%	10.1 min	0.9%
AUS–SFO	Austin to San Francisco	220	60.0%	21.0 min	0.0%

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 2026.

Delay causes

BTS cause category	Share of delay minutes	National, Apr 2026	Minutes
Air carrier	38.9%	33.5%	42,755
Late-arriving aircraft	36.7%	40.4%	40,297
National Aviation System	20.6%	21.0%	22,628
Extreme weather	3.7%	5.0%	4,012
Security	0.2%	0.1%	185

109,877 delay minutes on 1,709 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.

Questions and answers

How many flights left AUS on time in April 2026?

76.9% of 7,647 scheduled domestic departures left less than 15 minutes late, and 77.0% reached their destination on time. The national figures that month were 79.1% and 78.9%.

How does that compare with a year earlier?

In April 2025, 79.3% of 7,311 departures left on time and 0.7% were cancelled, against 76.9% and 0.6% in April 2026.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for April 2026; 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.