Charles M. Schulz - Sonoma County in February 2026

85.8%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 February 2026, reporting carriers scheduled 323 domestic departures from Charles M. Schulz - Sonoma County (STS). 85.8% left less than 15 minutes late and 84.2% reached their destination on time; 0.9% were cancelled.

Nationally that month, 78.1% of flights departed on time and 78.3% arrived on time, so STS departures were 7.7 points above the national departure figure.

A year earlier, in February 2025, the airport had 250 departures with 75.6% leaving on time: a change of +10.2 points, with flights up 29%.

Flights arriving at STS that month were on time 83.3% of the time (323 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 55%, air carrier 22% and national aviation system 14%.

On time 84.2%
Arrived 15+ minutes late 14.9%
Cancelled 0.9%
Diverted 0.0%

Every scheduled departure from STS in February 2026, judged by arrival at the destination.

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

Measure	Feb 2026	Feb 2025	STS, 12 months to Jul 2026	All reported flights, Feb 2026
Departed on time	85.8%	75.6%	80.4%	78.1%
Arrived on time	84.2%	70.4%	78.8%	78.3%
Cancelled	0.9%	4.0%	1.7%	2.3%
Average departure delay (late minutes only)	9.6 min	17.8 min	13.2 min	15.0 min
Scheduled departures a day	11	8	16	17,168
Scheduled departures	323	250	5,714	515,037

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	255	79%	82.0%	3.3 min	0.8%
MQ Envoy Air	54	17%	94.4%	-2.2 min	0.0%
AS Alaska Airlines	13	4%	84.6%	-8.7 min	7.7%
AA American Airlines	1	0%	100.0%	1.0 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
STS–PHX	Santa Rosa to Phoenix	55	94.5%	-2.2 min	0.0%
STS–LAX	Santa Rosa to Los Angeles	44	86.4%	1.9 min	2.3%
STS–SAN	Santa Rosa to San Diego	44	65.9%	18.5 min	0.0%
STS–SNA	Santa Rosa to Santa Ana	44	88.6%	-0.7 min	0.0%
STS–BUR	Santa Rosa to Burbank	38	86.8%	-8.5 min	2.6%
STS–PDX	Santa Rosa to Portland	31	83.9%	-2.2 min	3.2%
STS–LAS	Santa Rosa to Las Vegas	24	79.2%	7.3 min	0.0%
STS–SEA	Santa Rosa to Seattle	23	73.9%	2.6 min	0.0%
STS–PSP	Santa Rosa to Palm Springs	20	95.0%	1.2 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 2026.

Delay causes

BTS cause category	Share of delay minutes	National, Feb 2026	Minutes
Air carrier	21.5%	38.2%	620
Late-arriving aircraft	55.1%	37.2%	1,591
National Aviation System	14.2%	18.5%	410
Extreme weather	9.2%	6.0%	264
Security	0.0%	0.2%	0

2,885 delay minutes on 48 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 2026?

85.8% of 323 scheduled domestic departures left less than 15 minutes late, and 84.2% reached their destination on time. The national figures that month were 78.1% and 78.3%.

How does that compare with a year earlier?

In February 2025, 75.6% of 250 departures left on time and 4.0% were cancelled, against 85.8% and 0.9% in February 2026.

Provenance

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