Charles M. Schulz - Sonoma County in February 2025

75.6%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 February 2025, reporting carriers scheduled 250 domestic departures from Charles M. Schulz - Sonoma County (STS). 75.6% left less than 15 minutes late and 70.4% reached their destination on time; 4.0% were cancelled.

Nationally that month, 79.2% of flights departed on time and 77.9% arrived on time, so STS departures were 3.6 points below the national departure figure.

A year earlier, in February 2024, the airport had 231 departures with 83.5% leaving on time: a change of −7.9 points, with flights up 8%.

Flights arriving at STS that month were on time 70.0% of the time (250 scheduled arrivals).

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

On time 70.4%
Arrived 15+ minutes late 25.6%
Cancelled 4.0%
Diverted 0.0%

Every scheduled departure from STS in February 2025, judged by arrival at the destination.

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

Measure	Feb 2025	Feb 2024	STS, 12 months to Jul 2026	All reported flights, Feb 2025
Departed on time	75.6%	83.5%	80.4%	79.2%
Arrived on time	70.4%	79.2%	78.8%	77.9%
Cancelled	4.0%	0.0%	1.7%	1.5%
Average departure delay (late minutes only)	17.8 min	14.3 min	13.2 min	15.3 min
Scheduled departures a day	8	8	16	16,830
Scheduled departures	250	231	5,714	504,884

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	222	89%	68.5%	17.8 min	4.5%
AA American Airlines	16	6%	81.3%	9.3 min	0.0%
MQ Envoy Air	12	5%	91.7%	0.6 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
STS–LAX	Santa Rosa to Los Angeles	44	65.9%	19.1 min	6.8%
STS–PHX	Santa Rosa to Phoenix	44	81.8%	7.4 min	0.0%
STS–SAN	Santa Rosa to San Diego	44	70.5%	5.6 min	9.1%
STS–SNA	Santa Rosa to Santa Ana	44	59.1%	25.3 min	2.3%
STS–LAS	Santa Rosa to Las Vegas	28	71.4%	23.0 min	0.0%
STS–PDX	Santa Rosa to Portland	16	75.0%	15.7 min	6.3%
STS–SEA	Santa Rosa to Seattle	16	62.5%	20.9 min	6.3%
STS–BUR	Santa Rosa to Burbank	14	85.7%	22.9 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), February 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Feb 2025	Minutes
Air carrier	18.4%	33.9%	825
Late-arriving aircraft	46.1%	36.9%	2,068
National Aviation System	17.1%	22.5%	768
Extreme weather	18.4%	6.6%	827
Security	0.0%	0.1%	0

4,488 delay minutes on 64 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 February 2025?

75.6% of 250 scheduled domestic departures left less than 15 minutes late, and 70.4% reached their destination on time. The national figures that month were 79.2% and 77.9%.

How does that compare with a year earlier?

In February 2024, 83.5% of 231 departures left on time and 0.0% were cancelled, against 75.6% and 4.0% in February 2025.

Provenance

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