San Antonio International in August 2024

82.0%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 August 2024, reporting carriers scheduled 3,640 domestic departures from San Antonio International (SAT). 82.0% left less than 15 minutes late and 82.4% reached their destination on time; 1.2% were cancelled.

Nationally that month, 75.4% of flights departed on time and 74.7% arrived on time, so SAT departures were 6.6 points above the national departure figure.

A year earlier, in August 2023, the airport had 3,509 departures with 81.9% leaving on time: a change of +0.1 points, with flights up 4%.

Flights arriving at SAT that month were on time 75.5% of the time (3,639 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 43%, air carrier 34% and national aviation system 22%.

On time 82.4%
Arrived 15+ minutes late 16.1%
Cancelled 1.2%
Diverted 0.3%

Every scheduled departure from SAT in August 2024, judged by arrival at the destination.

August 2024 against a year earlier, the airport's year and the nation

Measure	Aug 2024	Aug 2023	SAT, 12 months to Jul 2026	All reported flights, Aug 2024
Departed on time	82.0%	81.9%	80.3%	75.4%
Arrived on time	82.4%	82.6%	80.6%	74.7%
Cancelled	1.2%	0.9%	1.2%	2.1%
Average departure delay (late minutes only)	13.5 min	14.7 min	14.7 min	18.4 min
Scheduled departures a day	121	117	110	20,634
Scheduled departures	3,640	3,509	40,226	619,025

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
WN Southwest Airlines	1,357	37%	86.8%	-1.1 min	0.3%
AA American Airlines	675	19%	77.6%	9.9 min	1.9%
DL Delta Air Lines	546	15%	87.7%	-1.0 min	0.7%
UA United Airlines	533	15%	84.4%	1.7 min	1.9%
NK Spirit Airlines	242	7%	68.6%	18.8 min	3.3%
F9 Frontier Airlines	75	2%	61.3%	30.8 min	0.0%
OO SkyWest Airlines	68	2%	91.2%	-2.0 min	0.0%
B6 JetBlue Airways	62	2%	51.6%	44.7 min	6.5%
AS Alaska Airlines	56	2%	67.9%	16.2 min	0.0%
MQ Envoy Air	22	1%	90.9%	-3.1 min	0.0%
G4 Allegiant Air	4	0%	75.0%	-4.2 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
SAT–DFW	San Antonio to Dallas/Fort Worth	443	72.9%	10.8 min	2.3%
SAT–DEN	San Antonio to Denver	272	82.0%	2.4 min	1.1%
SAT–ATL	San Antonio to Atlanta	260	90.0%	-4.2 min	0.8%
SAT–IAH	San Antonio to Houston	218	82.6%	2.1 min	1.8%
SAT–LAS	San Antonio to Las Vegas	217	82.0%	4.9 min	0.9%
SAT–PHX	San Antonio to Phoenix	212	82.5%	6.7 min	0.5%
SAT–DAL	San Antonio to Dallas	210	88.1%	-1.8 min	0.0%
SAT–LAX	San Antonio to Los Angeles	174	89.1%	0.9 min	0.0%
SAT–HOU	San Antonio to Houston	126	83.3%	1.8 min	0.0%
SAT–ORD	San Antonio to Chicago	125	88.0%	-2.6 min	0.8%
SAT–CLT	San Antonio to Charlotte	119	82.4%	3.8 min	0.8%
SAT–MCO	San Antonio to Orlando	101	78.2%	15.7 min	1.0%

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), August 2024.

Delay causes

BTS cause category	Share of delay minutes	National, Aug 2024	Minutes
Air carrier	33.6%	33.8%	15,023
Late-arriving aircraft	42.6%	39.8%	19,067
National Aviation System	22.1%	20.4%	9,896
Extreme weather	1.6%	5.9%	703
Security	0.0%	0.1%	17

44,706 delay minutes on 587 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 SAT on time in August 2024?

82.0% of 3,640 scheduled domestic departures left less than 15 minutes late, and 82.4% reached their destination on time. The national figures that month were 75.4% and 74.7%.

How does that compare with a year earlier?

In August 2023, 81.9% of 3,509 departures left on time and 0.9% were cancelled, against 82.0% and 1.2% in August 2024.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for August 2024; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for SAT · methodology · corrections.