Norman Y. Mineta San Jose International in August 2023

80.3%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 2023, reporting carriers scheduled 4,663 domestic departures from Norman Y. Mineta San Jose International (SJC). 80.3% left less than 15 minutes late and 80.3% reached their destination on time; 1.8% were cancelled.

Nationally that month, 76.7% of flights departed on time and 76.9% arrived on time, so SJC departures were 3.6 points above the national departure figure.

Flights arriving at SJC that month were on time 78.7% of the time (4,664 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 51%, air carrier 32% and national aviation system 16%.

On time 80.3%
Arrived 15+ minutes late 17.8%
Cancelled 1.8%
Diverted 0.2%

Every scheduled departure from SJC in August 2023, judged by arrival at the destination.

August 2023 against a year earlier, the airport's year and the nation

Measure	Aug 2023	Year earlier	SJC, 12 months to Jul 2026	All reported flights, Aug 2023
Departed on time	80.3%	—	80.9%	76.7%
Arrived on time	80.3%	—	81.9%	76.9%
Cancelled	1.8%	—	0.7%	1.5%
Average departure delay (late minutes only)	10.2 min	—	10.9 min	17.3 min
Scheduled departures a day	155	—	119	20,100
Scheduled departures	4,663	—	43,338	602,987

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
WN Southwest Airlines	3,009	65%	77.2%	5.4 min	2.4%
OO SkyWest Airlines	558	12%	88.0%	-3.3 min	0.2%
AS Alaska Airlines	281	6%	82.9%	0.9 min	0.0%
DL Delta Air Lines	271	6%	87.5%	2.7 min	1.5%
AA American Airlines	170	4%	88.2%	0.0 min	0.0%
UA United Airlines	133	3%	89.5%	-8.7 min	1.5%
NK Spirit Airlines	117	3%	81.2%	0.7 min	0.9%
B6 JetBlue Airways	62	1%	67.7%	20.8 min	1.6%
HA Hawaiian Airlines	62	1%	85.5%	-6.2 min	1.6%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
SJC–SAN	San Jose to San Diego	501	73.5%	7.4 min	4.2%
SJC–LAX	San Jose to Los Angeles	443	86.2%	-2.3 min	0.5%
SJC–SEA	San Jose to Seattle	439	85.6%	-2.0 min	0.7%
SJC–LAS	San Jose to Las Vegas	383	74.2%	6.8 min	3.9%
SJC–DEN	San Jose to Denver	261	80.8%	0.7 min	1.9%
SJC–BUR	San Jose to Burbank	255	74.5%	5.9 min	5.9%
SJC–PDX	San Jose to Portland	238	84.9%	3.6 min	0.0%
SJC–PHX	San Jose to Phoenix	237	81.9%	5.9 min	0.4%
SJC–SNA	San Jose to Santa Ana	229	79.0%	0.8 min	3.5%
SJC–AUS	San Jose to Austin	174	77.0%	7.9 min	0.0%
SJC–SLC	San Jose to Salt Lake City	155	85.8%	7.0 min	0.0%
SJC–ONT	San Jose to Ontario	143	74.1%	8.9 min	2.8%

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), August 2023.

Delay causes

BTS cause category	Share of delay minutes	National, Aug 2023	Minutes
Air carrier	31.5%	36.7%	12,660
Late-arriving aircraft	51.3%	42.2%	20,612
National Aviation System	16.1%	15.7%	6,488
Extreme weather	0.7%	5.1%	293
Security	0.4%	0.2%	165

40,218 delay minutes on 829 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 August 2023?

80.3% of 4,663 scheduled domestic departures left less than 15 minutes late, and 80.3% reached their destination on time. The national figures that month were 76.7% and 76.9%.

How does that compare with a year earlier?

August 2022 is outside the 36 months on file, or the airport had too few reported flights that month.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for August 2023; 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.