Charles M. Schulz - Sonoma County in July 2024

82.8%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 July 2024, reporting carriers scheduled 319 domestic departures from Charles M. Schulz - Sonoma County (STS). 82.8% left less than 15 minutes late and 76.5% reached their destination on time; 0.3% were cancelled.

Nationally that month, 68.5% of flights departed on time and 68.1% arrived on time, so STS departures were 14.3 points above the national departure figure.

Flights arriving at STS that month were on time 81.5% of the time (319 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 47%, air carrier 38% and national aviation system 10%.

On time 76.5%
Arrived 15+ minutes late 23.2%
Cancelled 0.3%
Diverted 0.0%

Every scheduled departure from STS in July 2024, judged by arrival at the destination.

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

Measure	Jul 2024	Year earlier	STS, 12 months to Jul 2026	All reported flights, Jul 2024
Departed on time	82.8%	—	80.4%	68.5%
Arrived on time	76.5%	—	78.8%	68.1%
Cancelled	0.3%	—	1.7%	2.9%
Average departure delay (late minutes only)	14.0 min	—	13.2 min	24.9 min
Scheduled departures a day	11	—	16	21,154
Scheduled departures	319	—	5,714	634,613

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	251	79%	78.9%	10.7 min	0.0%
AA American Airlines	31	10%	64.5%	22.2 min	3.2%
AS Alaska Airlines	29	9%	69.0%	13.4 min	0.0%
MQ Envoy Air	8	3%	75.0%	1.3 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
STS–LAX	Santa Rosa to Los Angeles	62	80.6%	6.2 min	0.0%
STS–SAN	Santa Rosa to San Diego	62	71.0%	18.1 min	0.0%
STS–SEA	Santa Rosa to Seattle	60	81.7%	3.3 min	0.0%
STS–SNA	Santa Rosa to Santa Ana	52	80.8%	10.5 min	0.0%
STS–DFW	Santa Rosa to Dallas/Fort Worth	31	64.5%	22.2 min	3.2%
STS–PHX	Santa Rosa to Phoenix	31	80.6%	21.5 min	0.0%
STS–BUR	Santa Rosa to Burbank	21	66.7%	7.9 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), July 2024.

Delay causes

BTS cause category	Share of delay minutes	National, Jul 2024	Minutes
Air carrier	38.4%	36.6%	1,812
Late-arriving aircraft	47.4%	42.7%	2,237
National Aviation System	9.8%	16.0%	462
Extreme weather	4.0%	4.6%	189
Security	0.3%	0.1%	15

4,715 delay minutes on 74 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 STS on time in July 2024?

82.8% of 319 scheduled domestic departures left less than 15 minutes late, and 76.5% reached their destination on time. The national figures that month were 68.5% and 68.1%.

How does that compare with a year earlier?

July 2023 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 July 2024; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for STS · methodology · corrections.