San Luis Obispo County Regional in July 2025

77.7%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 2025, reporting carriers scheduled 430 domestic departures from San Luis Obispo County Regional (SBP). 77.7% left less than 15 minutes late and 77.0% reached their destination on time; 0.9% were cancelled.

Nationally that month, 69.7% of flights departed on time and 69.0% arrived on time, so SBP departures were 8.0 points above the national departure figure.

A year earlier, in July 2024, the airport had 465 departures with 84.9% leaving on time: a change of −7.2 points, with flights down 8%.

Flights arriving at SBP that month were on time 68.4% of the time (430 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 34%, air carrier 33% and national aviation system 29%.

On time 77.0%
Arrived 15+ minutes late 21.6%
Cancelled 0.9%
Diverted 0.5%

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

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

Measure	Jul 2025	Jul 2024	SBP, 12 months to Jul 2026	All reported flights, Jul 2025
Departed on time	77.7%	84.9%	78.8%	69.7%
Arrived on time	77.0%	82.8%	75.3%	69.0%
Cancelled	0.9%	0.4%	1.2%	2.5%
Average departure delay (late minutes only)	14.8 min	16.5 min	20.9 min	24.3 min
Scheduled departures a day	14	16	14	21,048
Scheduled departures	430	465	5,010	631,428

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	274	64%	76.3%	5.8 min	1.1%
AA American Airlines	94	22%	78.7%	6.9 min	1.1%
AS Alaska Airlines	31	7%	71.0%	18.3 min	0.0%
UA United Airlines	31	7%	83.9%	3.1 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
SBP–PHX	San Luis Obispo to Phoenix	92	85.9%	-0.1 min	1.1%
SBP–SFO	San Luis Obispo to San Francisco	92	66.3%	12.0 min	0.0%
SBP–DEN	San Luis Obispo to Denver	62	74.2%	10.4 min	0.0%
SBP–LAX	San Luis Obispo to Los Angeles	61	93.4%	-8.3 min	0.0%
SBP–SAN	San Luis Obispo to San Diego	61	77.0%	8.0 min	3.3%
SBP–DFW	San Luis Obispo to Dallas/Fort Worth	31	61.3%	21.1 min	3.2%
SBP–SEA	San Luis Obispo to Seattle	31	71.0%	18.3 min	0.0%

By scheduled departure hour

On-time share:under 62%6270768288% and over

Share of departures that left less than 15 minutes late, by scheduled hour (local time), July 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Jul 2025	Minutes
Air carrier	32.6%	31.1%	1,958
Late-arriving aircraft	34.1%	40.8%	2,048
National Aviation System	28.7%	20.7%	1,723
Extreme weather	4.6%	7.3%	274
Security	0.0%	0.1%	0

6,003 delay minutes on 93 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 July 2025?

77.7% of 430 scheduled domestic departures left less than 15 minutes late, and 77.0% reached their destination on time. The national figures that month were 69.7% and 69.0%.

How does that compare with a year earlier?

In July 2024, 84.9% of 465 departures left on time and 0.4% were cancelled, against 77.7% and 0.9% in July 2025.

Provenance

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