San Antonio International in January 2025

80.9%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 January 2025, reporting carriers scheduled 3,100 domestic departures from San Antonio International (SAT). 80.9% left less than 15 minutes late and 83.1% reached their destination on time; 3.6% were cancelled.

Nationally that month, 79.3% of flights departed on time and 78.6% arrived on time, so SAT departures were 1.6 points above the national departure figure.

A year earlier, in January 2024, the airport had 3,282 departures with 79.2% leaving on time: a change of +1.7 points, with flights down 6%.

Flights arriving at SAT that month were on time 76.2% of the time (3,098 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 44%, air carrier 35% and national aviation system 15%.

On time 83.1%
Arrived 15+ minutes late 13.3%
Cancelled 3.6%
Diverted 0.1%

Every scheduled departure from SAT in January 2025, judged by arrival at the destination.

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

Measure	Jan 2025	Jan 2024	SAT, 12 months to Jul 2026	All reported flights, Jan 2025
Departed on time	80.9%	79.2%	80.3%	79.3%
Arrived on time	83.1%	78.8%	80.6%	78.6%
Cancelled	3.6%	3.0%	1.2%	3.0%
Average departure delay (late minutes only)	11.7 min	14.9 min	14.7 min	14.0 min
Scheduled departures a day	103	109	110	17,992
Scheduled departures	3,100	3,282	40,226	539,747

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
WN Southwest Airlines	1,241	40%	84.4%	-4.1 min	3.9%
AA American Airlines	633	20%	80.7%	1.7 min	5.4%
DL Delta Air Lines	480	15%	85.0%	2.7 min	2.7%
UA United Airlines	458	15%	83.4%	-2.5 min	2.0%
NK Spirit Airlines	117	4%	82.1%	-9.3 min	2.6%
OO SkyWest Airlines	56	2%	76.8%	-5.9 min	3.6%
F9 Frontier Airlines	55	2%	81.8%	0.3 min	0.0%
AS Alaska Airlines	29	1%	65.5%	10.5 min	0.0%
MQ Envoy Air	29	1%	79.3%	-5.2 min	3.4%
YX Republic Airline	2	0%	50.0%	-1.0 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
SAT–DFW	San Antonio to Dallas/Fort Worth	374	75.4%	6.0 min	7.0%
SAT–DAL	San Antonio to Dallas	233	83.3%	-5.2 min	5.6%
SAT–DEN	San Antonio to Denver	227	81.1%	0.2 min	1.3%
SAT–ATL	San Antonio to Atlanta	222	81.1%	3.5 min	5.0%
SAT–PHX	San Antonio to Phoenix	221	86.0%	-5.9 min	2.7%
SAT–IAH	San Antonio to Houston	177	82.5%	-2.6 min	4.5%
SAT–LAS	San Antonio to Las Vegas	173	83.2%	-2.1 min	1.7%
SAT–LAX	San Antonio to Los Angeles	160	79.4%	-0.6 min	1.9%
SAT–HOU	San Antonio to Houston	126	88.1%	-7.2 min	4.8%
SAT–CLT	San Antonio to Charlotte	112	83.0%	2.1 min	5.4%
SAT–ORD	San Antonio to Chicago	108	85.2%	-0.1 min	0.9%
SAT–MCO	San Antonio to Orlando	91	94.5%	-13.2 min	1.1%

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), January 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Jan 2025	Minutes
Air carrier	34.8%	36.2%	10,124
Late-arriving aircraft	43.5%	34.7%	12,662
National Aviation System	15.0%	19.9%	4,363
Extreme weather	6.7%	9.1%	1,937
Security	0.1%	0.2%	36

29,122 delay minutes on 411 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 January 2025?

80.9% of 3,100 scheduled domestic departures left less than 15 minutes late, and 83.1% reached their destination on time. The national figures that month were 79.3% and 78.6%.

How does that compare with a year earlier?

In January 2024, 79.2% of 3,282 departures left on time and 3.0% were cancelled, against 80.9% and 3.6% in January 2025.

Provenance

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