Norman Y. Mineta San Jose International in September 2024

86.0%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 September 2024, reporting carriers scheduled 4,457 domestic departures from Norman Y. Mineta San Jose International (SJC). 86.0% left less than 15 minutes late and 85.0% reached their destination on time; 0.4% were cancelled.

Nationally that month, 84.4% of flights departed on time and 83.9% arrived on time, so SJC departures were 1.6 points above the national departure figure.

A year earlier, in September 2023, the airport had 4,371 departures with 82.7% leaving on time: a change of +3.3 points, with flights up 2%.

Flights arriving at SJC that month were on time 84.4% of the time (4,456 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 41%, national aviation system 30% and air carrier 27%.

On time 85.0%
Arrived 15+ minutes late 14.5%
Cancelled 0.4%
Diverted 0.1%

Every scheduled departure from SJC in September 2024, judged by arrival at the destination.

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

Measure	Sep 2024	Sep 2023	SJC, 12 months to Jul 2026	All reported flights, Sep 2024
Departed on time	86.0%	82.7%	80.9%	84.4%
Arrived on time	85.0%	84.4%	81.9%	83.9%
Cancelled	0.4%	0.5%	0.7%	0.6%
Average departure delay (late minutes only)	7.8 min	10.6 min	10.9 min	10.6 min
Scheduled departures a day	149	146	119	19,421
Scheduled departures	4,457	4,371	43,338	582,622

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
WN Southwest Airlines	2,435	55%	85.1%	-0.2 min	0.3%
OO SkyWest Airlines	743	17%	88.6%	-1.7 min	0.0%
NK Spirit Airlines	298	7%	72.5%	9.5 min	0.3%
AS Alaska Airlines	260	6%	78.8%	2.4 min	2.3%
UA United Airlines	201	5%	95.0%	-9.3 min	0.0%
DL Delta Air Lines	180	4%	92.8%	-6.3 min	0.0%
F9 Frontier Airlines	140	3%	77.1%	6.4 min	0.7%
AA American Airlines	119	3%	82.4%	-1.4 min	0.0%
HA Hawaiian Airlines	60	1%	90.0%	-4.7 min	1.7%
MQ Envoy Air	18	0%	83.3%	-0.4 min	0.0%
B6 JetBlue Airways	3	0%	100.0%	-1.0 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
SJC–LAX	San Jose to Los Angeles	524	86.6%	-1.7 min	0.2%
SJC–SAN	San Jose to San Diego	514	78.2%	5.5 min	0.0%
SJC–SEA	San Jose to Seattle	424	77.1%	3.4 min	1.4%
SJC–LAS	San Jose to Las Vegas	404	80.2%	4.4 min	0.7%
SJC–DEN	San Jose to Denver	298	89.6%	-2.8 min	0.0%
SJC–PHX	San Jose to Phoenix	259	90.7%	-3.2 min	0.0%
SJC–PDX	San Jose to Portland	245	86.1%	1.0 min	0.0%
SJC–BUR	San Jose to Burbank	242	76.9%	7.4 min	1.7%
SJC–SNA	San Jose to Santa Ana	215	87.0%	-3.5 min	0.5%
SJC–SLC	San Jose to Salt Lake City	162	93.8%	-7.5 min	0.0%
SJC–ONT	San Jose to Ontario	132	86.4%	-1.4 min	0.0%
SJC–DFW	San Jose to Dallas/Fort Worth	114	75.4%	2.5 min	0.0%

By scheduled departure hour

100

On-time share:under 62%6270768288% and over

Share of departures that left less than 15 minutes late, by scheduled hour (local time), September 2024.

Delay causes

BTS cause category	Share of delay minutes	National, Sep 2024	Minutes
Air carrier	26.6%	38.6%	8,496
Late-arriving aircraft	41.4%	38.4%	13,215
National Aviation System	30.3%	18.2%	9,660
Extreme weather	1.7%	4.8%	558
Security	0.0%	0.1%	3

31,932 delay minutes on 647 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 SJC on time in September 2024?

86.0% of 4,457 scheduled domestic departures left less than 15 minutes late, and 85.0% reached their destination on time. The national figures that month were 84.4% and 83.9%.

How does that compare with a year earlier?

In September 2023, 82.7% of 4,371 departures left on time and 0.5% were cancelled, against 86.0% and 0.4% in September 2024.

Provenance

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