Norman Y. Mineta San Jose International in April 2026

81.7%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 April 2026, reporting carriers scheduled 3,423 domestic departures from Norman Y. Mineta San Jose International (SJC). 81.7% left less than 15 minutes late and 83.8% reached their destination on time; 0.5% were cancelled.

Nationally that month, 79.1% of flights departed on time and 78.9% arrived on time, so SJC departures were 2.6 points above the national departure figure.

A year earlier, in April 2025, the airport had 3,823 departures with 85.2% leaving on time: a change of −3.5 points, with flights down 10%.

Flights arriving at SJC that month were on time 80.1% of the time (3,406 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 52%, air carrier 28% and national aviation system 19%.

On time 83.8%
Arrived 15+ minutes late 15.7%
Cancelled 0.5%
Diverted 0.0%

Every scheduled departure from SJC in April 2026, judged by arrival at the destination.

April 2026 against a year earlier, the airport's year and the nation

Measure	Apr 2026	Apr 2025	SJC, 12 months to Jul 2026	All reported flights, Apr 2026
Departed on time	81.7%	85.2%	80.9%	79.1%
Arrived on time	83.8%	85.1%	81.9%	78.9%
Cancelled	0.5%	0.3%	0.7%	0.9%
Average departure delay (late minutes only)	9.3 min	9.7 min	10.9 min	14.5 min
Scheduled departures a day	114	127	119	19,931
Scheduled departures	3,423	3,823	43,338	597,919

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
WN Southwest Airlines	2,156	63%	80.1%	2.6 min	0.3%
OO SkyWest Airlines	513	15%	90.3%	-6.2 min	0.2%
DL Delta Air Lines	266	8%	94.0%	-14.1 min	1.9%
AS Alaska Airlines	222	6%	88.7%	-7.0 min	0.5%
AA American Airlines	143	4%	86.0%	-2.9 min	0.7%
UA United Airlines	92	3%	93.5%	-11.5 min	0.0%
F9 Frontier Airlines	31	1%	67.7%	6.2 min	6.5%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
SJC–SAN	San Jose to San Diego	454	76.2%	6.0 min	0.0%
SJC–LAX	San Jose to Los Angeles	344	88.4%	-6.5 min	1.5%
SJC–SEA	San Jose to Seattle	306	86.3%	-6.0 min	0.3%
SJC–LAS	San Jose to Las Vegas	290	79.3%	3.0 min	1.0%
SJC–PHX	San Jose to Phoenix	272	84.2%	1.4 min	0.7%
SJC–SNA	San Jose to Santa Ana	233	83.3%	-1.0 min	1.3%
SJC–DEN	San Jose to Denver	167	85.0%	0.5 min	0.6%
SJC–BUR	San Jose to Burbank	163	83.4%	-1.9 min	0.0%
SJC–SLC	San Jose to Salt Lake City	135	92.6%	-10.0 min	0.0%
SJC–LGB	San Jose to Long Beach	115	87.8%	-2.0 min	0.0%
SJC–PDX	San Jose to Portland	115	90.4%	-3.7 min	0.0%
SJC–ONT	San Jose to Ontario	106	85.8%	0.0 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), April 2026.

Delay causes

BTS cause category	Share of delay minutes	National, Apr 2026	Minutes
Air carrier	28.4%	33.5%	6,892
Late-arriving aircraft	51.9%	40.4%	12,596
National Aviation System	19.0%	21.0%	4,613
Extreme weather	0.6%	5.0%	145
Security	0.1%	0.1%	24

24,270 delay minutes on 537 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 April 2026?

81.7% of 3,423 scheduled domestic departures left less than 15 minutes late, and 83.8% reached their destination on time. The national figures that month were 79.1% and 78.9%.

How does that compare with a year earlier?

In April 2025, 85.2% of 3,823 departures left on time and 0.3% were cancelled, against 81.7% and 0.5% in April 2026.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for April 2026; 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.