Norman Y. Mineta San Jose International in June 2025

78.3%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 June 2025, reporting carriers scheduled 4,037 domestic departures from Norman Y. Mineta San Jose International (SJC). 78.3% left less than 15 minutes late and 79.5% reached their destination on time; 0.6% were cancelled.

Nationally that month, 71.4% of flights departed on time and 70.3% arrived on time, so SJC departures were 6.9 points above the national departure figure.

A year earlier, in June 2024, the airport had 4,382 departures with 79.6% leaving on time: a change of −1.3 points, with flights down 8%.

Flights arriving at SJC that month were on time 76.3% of the time (4,038 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 46%, air carrier 36% and national aviation system 18%.

On time 79.5%
Arrived 15+ minutes late 19.6%
Cancelled 0.6%
Diverted 0.2%

Every scheduled departure from SJC in June 2025, judged by arrival at the destination.

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

Measure	Jun 2025	Jun 2024	SJC, 12 months to Jul 2026	All reported flights, Jun 2025
Departed on time	78.3%	79.6%	80.9%	71.4%
Arrived on time	79.5%	79.9%	81.9%	70.3%
Cancelled	0.6%	0.4%	0.7%	1.6%
Average departure delay (late minutes only)	14.2 min	12.6 min	10.9 min	22.1 min
Scheduled departures a day	135	146	119	20,386
Scheduled departures	4,037	4,382	43,338	611,575

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
WN Southwest Airlines	2,455	61%	78.0%	5.9 min	0.6%
OO SkyWest Airlines	606	15%	86.5%	-3.0 min	0.2%
DL Delta Air Lines	233	6%	85.8%	8.9 min	0.9%
AS Alaska Airlines	209	5%	74.2%	6.1 min	2.9%
AA American Airlines	164	4%	76.8%	11.6 min	1.2%
UA United Airlines	148	4%	77.0%	12.4 min	0.7%
NK Spirit Airlines	112	3%	83.0%	0.3 min	0.0%
HA Hawaiian Airlines	60	1%	85.0%	14.6 min	0.0%
MQ Envoy Air	26	1%	92.3%	-7.7 min	0.0%
F9 Frontier Airlines	24	1%	37.5%	81.8 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
SJC–SAN	San Jose to San Diego	474	74.1%	8.3 min	0.8%
SJC–SEA	San Jose to Seattle	412	76.0%	6.8 min	1.5%
SJC–LAS	San Jose to Las Vegas	403	75.2%	10.7 min	1.0%
SJC–LAX	San Jose to Los Angeles	367	84.7%	-3.9 min	0.0%
SJC–PHX	San Jose to Phoenix	239	81.2%	3.2 min	0.0%
SJC–DEN	San Jose to Denver	236	69.9%	12.3 min	0.0%
SJC–SNA	San Jose to Santa Ana	216	85.2%	-1.7 min	2.3%
SJC–BUR	San Jose to Burbank	202	76.2%	8.2 min	0.5%
SJC–SLC	San Jose to Salt Lake City	172	89.0%	1.0 min	0.6%
SJC–PDX	San Jose to Portland	132	79.5%	8.1 min	0.0%
SJC–DFW	San Jose to Dallas/Fort Worth	131	75.6%	12.5 min	1.5%
SJC–ONT	San Jose to Ontario	115	79.1%	5.7 min	0.0%

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), June 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Jun 2025	Minutes
Air carrier	35.5%	31.6%	17,396
Late-arriving aircraft	46.2%	40.6%	22,622
National Aviation System	18.1%	20.9%	8,847
Extreme weather	0.2%	6.9%	115
Security	0.1%	0.2%	26

49,006 delay minutes on 792 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 June 2025?

78.3% of 4,037 scheduled domestic departures left less than 15 minutes late, and 79.5% reached their destination on time. The national figures that month were 71.4% and 70.3%.

How does that compare with a year earlier?

In June 2024, 79.6% of 4,382 departures left on time and 0.4% were cancelled, against 78.3% and 0.6% in June 2025.

Provenance

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