Austin - Bergstrom International in May 2026

70.8%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 May 2026, reporting carriers scheduled 7,831 domestic departures from Austin - Bergstrom International (AUS). 70.8% left less than 15 minutes late and 74.1% reached their destination on time; 0.9% were cancelled.

Nationally that month, 77.1% of flights departed on time and 77.6% arrived on time, so AUS departures were 6.3 points below the national departure figure.

A year earlier, in May 2025, the airport had 7,634 departures with 68.6% leaving on time: a change of +2.2 points, with flights up 3%.

Flights arriving at AUS that month were on time 72.5% of the time (7,829 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 44%, air carrier 30% and national aviation system 17%.

On time 74.1%
Arrived 15+ minutes late 24.6%
Cancelled 0.9%
Diverted 0.3%

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

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

Measure	May 2026	May 2025	AUS, 12 months to Jul 2026	All reported flights, May 2026
Departed on time	70.8%	68.6%	74.2%	77.1%
Arrived on time	74.1%	71.4%	75.5%	77.6%
Cancelled	0.9%	1.1%	1.2%	0.9%
Average departure delay (late minutes only)	20.5 min	23.3 min	18.4 min	16.0 min
Scheduled departures a day	261	255	245	20,391
Scheduled departures	7,831	7,634	89,507	611,735

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
WN Southwest Airlines	3,382	43%	67.3%	14.2 min	0.4%
DL Delta Air Lines	1,209	15%	80.9%	2.8 min	1.7%
AA American Airlines	1,077	14%	80.2%	11.2 min	2.0%
UA United Airlines	961	12%	75.4%	11.3 min	0.5%
OO SkyWest Airlines	710	9%	81.5%	3.6 min	0.6%
AS Alaska Airlines	155	2%	90.3%	-10.1 min	1.3%
F9 Frontier Airlines	123	2%	76.4%	14.8 min	0.8%
B6 JetBlue Airways	87	1%	71.3%	24.3 min	0.0%
MQ Envoy Air	67	1%	68.7%	18.2 min	4.5%
G4 Allegiant Air	55	1%	67.3%	30.7 min	0.0%
NK Spirit Airlines	2	0%	50.0%	16.0 min	0.0%
YX Republic Airline	2	0%	100.0%	-20.5 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
AUS–DEN	Austin to Denver	466	77.5%	5.7 min	0.2%
AUS–DFW	Austin to Dallas/Fort Worth	427	76.8%	14.7 min	5.4%
AUS–ATL	Austin to Atlanta	386	74.1%	4.3 min	1.0%
AUS–LAX	Austin to Los Angeles	381	76.6%	6.5 min	1.0%
AUS–ORD	Austin to Chicago	298	78.5%	7.2 min	0.0%
AUS–PHX	Austin to Phoenix	297	75.4%	13.6 min	0.3%
AUS–BNA	Austin to Nashville	275	68.0%	17.6 min	0.4%
AUS–SFO	Austin to San Francisco	253	53.0%	29.4 min	0.4%
AUS–LAS	Austin to Las Vegas	249	70.3%	19.9 min	0.4%
AUS–MCO	Austin to Orlando	237	70.9%	10.8 min	1.7%
AUS–SAN	Austin to San Diego	236	68.2%	13.3 min	0.8%
AUS–IAH	Austin to Houston	228	65.4%	20.5 min	1.8%

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), May 2026.

Delay causes

BTS cause category	Share of delay minutes	National, May 2026	Minutes
Air carrier	30.0%	33.0%	40,739
Late-arriving aircraft	44.0%	40.4%	59,849
National Aviation System	17.2%	20.5%	23,348
Extreme weather	8.7%	6.0%	11,787
Security	0.1%	0.1%	195

135,918 delay minutes on 1,929 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 May 2026?

70.8% of 7,831 scheduled domestic departures left less than 15 minutes late, and 74.1% reached their destination on time. The national figures that month were 77.1% and 77.6%.

How does that compare with a year earlier?

In May 2025, 68.6% of 7,634 departures left on time and 1.1% were cancelled, against 70.8% and 0.9% in May 2026.

Provenance

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