Sacramento International in April 2025

84.2%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 2025, reporting carriers scheduled 4,938 domestic departures from Sacramento International (SMF). 84.2% left less than 15 minutes late and 84.5% reached their destination on time; 0.3% were cancelled.

Nationally that month, 80.6% of flights departed on time and 79.5% arrived on time, so SMF departures were 3.6 points above the national departure figure.

A year earlier, in April 2024, the airport had 4,392 departures with 82.5% leaving on time: a change of +1.7 points, with flights up 12%.

Flights arriving at SMF that month were on time 82.7% of the time (4,937 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 46%, air carrier 32% and national aviation system 19%.

On time 84.5%
Arrived 15+ minutes late 15.0%
Cancelled 0.3%
Diverted 0.2%

Every scheduled departure from SMF in April 2025, judged by arrival at the destination.

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

Measure	Apr 2025	Apr 2024	SMF, 12 months to Jul 2026	All reported flights, Apr 2025
Departed on time	84.2%	82.5%	80.0%	80.6%
Arrived on time	84.5%	83.1%	81.4%	79.5%
Cancelled	0.3%	0.3%	0.7%	0.8%
Average departure delay (late minutes only)	9.5 min	10.9 min	12.1 min	14.1 min
Scheduled departures a day	165	146	154	19,465
Scheduled departures	4,938	4,392	56,306	583,950

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
WN Southwest Airlines	2,755	56%	82.3%	3.2 min	0.3%
OO SkyWest Airlines	928	19%	89.3%	-5.7 min	0.2%
UA United Airlines	347	7%	87.0%	-0.5 min	0.0%
AA American Airlines	330	7%	80.6%	2.2 min	1.5%
DL Delta Air Lines	249	5%	88.8%	-4.6 min	0.0%
AS Alaska Airlines	106	2%	86.8%	0.4 min	0.9%
HA Hawaiian Airlines	90	2%	93.3%	5.6 min	0.0%
NK Spirit Airlines	72	1%	84.7%	5.1 min	0.0%
F9 Frontier Airlines	33	1%	81.8%	-1.6 min	0.0%
MQ Envoy Air	26	1%	84.6%	-1.7 min	3.8%
B6 JetBlue Airways	2	0%	100.0%	-3.5 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
SMF–LAX	Sacramento to Los Angeles	493	90.9%	-7.5 min	0.0%
SMF–LAS	Sacramento to Las Vegas	466	83.7%	4.3 min	0.0%
SMF–SAN	Sacramento to San Diego	430	76.7%	9.5 min	0.7%
SMF–PHX	Sacramento to Phoenix	346	87.0%	-0.7 min	0.9%
SMF–SEA	Sacramento to Seattle	319	86.2%	-1.8 min	0.0%
SMF–DEN	Sacramento to Denver	315	78.4%	6.1 min	0.6%
SMF–BUR	Sacramento to Burbank	244	82.4%	0.8 min	0.4%
SMF–ONT	Sacramento to Ontario	182	86.8%	-2.4 min	0.0%
SMF–SNA	Sacramento to Santa Ana	180	82.2%	-1.1 min	1.1%
SMF–LGB	Sacramento to Long Beach	167	84.4%	-0.3 min	0.0%
SMF–PDX	Sacramento to Portland	160	87.5%	0.9 min	0.6%
SMF–SLC	Sacramento to Salt Lake City	154	85.7%	-1.8 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), April 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Apr 2025	Minutes
Air carrier	32.4%	32.7%	13,036
Late-arriving aircraft	46.2%	39.4%	18,563
National Aviation System	19.2%	22.2%	7,722
Extreme weather	2.0%	5.5%	820
Security	0.1%	0.2%	38

40,179 delay minutes on 740 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 SMF on time in April 2025?

84.2% of 4,938 scheduled domestic departures left less than 15 minutes late, and 84.5% reached their destination on time. The national figures that month were 80.6% and 79.5%.

How does that compare with a year earlier?

In April 2024, 82.5% of 4,392 departures left on time and 0.3% were cancelled, against 84.2% and 0.3% in April 2025.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for April 2025; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for SMF · methodology · corrections.