San Luis Obispo County Regional in March 2025

80.6%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 March 2025, reporting carriers scheduled 505 domestic departures from San Luis Obispo County Regional (SBP). 80.6% left less than 15 minutes late and 78.8% reached their destination on time; 0.8% were cancelled.

Nationally that month, 79.9% of flights departed on time and 79.3% arrived on time, so SBP departures were 0.7 points above the national departure figure.

A year earlier, in March 2024, the airport had 382 departures with 84.0% leaving on time: a change of −3.4 points, with flights up 32%.

Flights arriving at SBP that month were on time 76.0% of the time (504 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 36%, late-arriving aircraft 32% and national aviation system 22%.

On time 78.8%
Arrived 15+ minutes late 20.4%
Cancelled 0.8%
Diverted 0.0%

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

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

Measure	Mar 2025	Mar 2024	SBP, 12 months to Jul 2026	All reported flights, Mar 2025
Departed on time	80.6%	84.0%	78.8%	79.9%
Arrived on time	78.8%	81.2%	75.3%	79.3%
Cancelled	0.8%	1.0%	1.2%	1.2%
Average departure delay (late minutes only)	15.5 min	13.4 min	20.9 min	14.9 min
Scheduled departures a day	17	13	14	20,029
Scheduled departures	505	382	5,010	600,872

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	373	74%	79.6%	4.4 min	1.1%
MQ Envoy Air	42	8%	73.8%	10.1 min	0.0%
AA American Airlines	31	6%	61.3%	16.4 min	0.0%
AS Alaska Airlines	31	6%	87.1%	7.0 min	0.0%
UA United Airlines	28	6%	85.7%	27.9 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
SBP–PHX	San Luis Obispo to Phoenix	121	78.5%	4.6 min	0.8%
SBP–SFO	San Luis Obispo to San Francisco	95	73.7%	10.0 min	1.1%
SBP–DEN	San Luis Obispo to Denver	63	92.1%	9.0 min	0.0%
SBP–SAN	San Luis Obispo to San Diego	62	74.2%	3.5 min	1.6%
SBP–LAX	San Luis Obispo to Los Angeles	58	86.2%	4.3 min	0.0%
SBP–DFW	San Luis Obispo to Dallas/Fort Worth	31	61.3%	16.4 min	0.0%
SBP–LAS	San Luis Obispo to Las Vegas	31	71.0%	12.6 min	3.2%
SBP–SEA	San Luis Obispo to Seattle	31	87.1%	7.0 min	0.0%
SBP–PDX	San Luis Obispo to Portland	13	84.6%	-5.0 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), March 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Mar 2025	Minutes
Air carrier	35.7%	33.0%	2,738
Late-arriving aircraft	31.6%	39.2%	2,420
National Aviation System	22.1%	21.9%	1,691
Extreme weather	10.6%	5.9%	815
Security	0.0%	0.1%	0

7,664 delay minutes on 103 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 March 2025?

80.6% of 505 scheduled domestic departures left less than 15 minutes late, and 78.8% reached their destination on time. The national figures that month were 79.9% and 79.3%.

How does that compare with a year earlier?

In March 2024, 84.0% of 382 departures left on time and 1.0% were cancelled, against 80.6% and 0.8% in March 2025.

Provenance

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