San Luis Obispo County Regional in January 2025

87.5%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 January 2025, reporting carriers scheduled 424 domestic departures from San Luis Obispo County Regional (SBP). 87.5% left less than 15 minutes late and 85.8% reached their destination on time; 0.7% were cancelled.

Nationally that month, 79.3% of flights departed on time and 78.6% arrived on time, so SBP departures were 8.2 points above the national departure figure.

A year earlier, in January 2024, the airport had 351 departures with 83.5% leaving on time: a change of +4.0 points, with flights up 21%.

Flights arriving at SBP that month were on time 83.1% of the time (425 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 74%, late-arriving aircraft 16% and national aviation system 7%.

On time 85.8%
Arrived 15+ minutes late 13.4%
Cancelled 0.7%
Diverted 0.0%

Every scheduled departure from SBP in January 2025, judged by arrival at the destination.

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

Measure	Jan 2025	Jan 2024	SBP, 12 months to Jul 2026	All reported flights, Jan 2025
Departed on time	87.5%	83.5%	78.8%	79.3%
Arrived on time	85.8%	82.1%	75.3%	78.6%
Cancelled	0.7%	0.3%	1.2%	3.0%
Average departure delay (late minutes only)	9.7 min	15.2 min	20.9 min	14.0 min
Scheduled departures a day	14	12	14	17,992
Scheduled departures	424	351	5,010	539,747

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	339	80%	85.0%	0.0 min	0.3%
AS Alaska Airlines	31	7%	93.5%	-8.8 min	3.2%
UA United Airlines	31	7%	87.1%	26.6 min	3.2%
MQ Envoy Air	17	4%	88.2%	-0.6 min	0.0%
AA American Airlines	6	1%	83.3%	13.5 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
SBP–PHX	San Luis Obispo to Phoenix	90	92.2%	-3.7 min	0.0%
SBP–SFO	San Luis Obispo to San Francisco	81	82.7%	-5.8 min	0.0%
SBP–DEN	San Luis Obispo to Denver	62	91.9%	11.0 min	1.6%
SBP–SAN	San Luis Obispo to San Diego	61	80.3%	-2.2 min	1.6%
SBP–LAX	San Luis Obispo to Los Angeles	58	84.5%	13.2 min	0.0%
SBP–SEA	San Luis Obispo to Seattle	31	93.5%	-8.8 min	3.2%
SBP–LAS	San Luis Obispo to Las Vegas	30	66.7%	11.0 min	0.0%
SBP–DFW	San Luis Obispo to Dallas/Fort Worth	6	83.3%	13.5 min	0.0%
SBP–PDX	San Luis Obispo to Portland	5	100.0%	-13.6 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), January 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Jan 2025	Minutes
Air carrier	73.8%	36.2%	2,938
Late-arriving aircraft	15.5%	34.7%	616
National Aviation System	6.9%	19.9%	274
Extreme weather	3.9%	9.1%	154
Security	0.0%	0.2%	0

3,982 delay minutes on 57 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 SBP on time in January 2025?

87.5% of 424 scheduled domestic departures left less than 15 minutes late, and 85.8% reached their destination on time. The national figures that month were 79.3% and 78.6%.

How does that compare with a year earlier?

In January 2024, 83.5% of 351 departures left on time and 0.3% were cancelled, against 87.5% and 0.7% in January 2025.

Provenance

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