San Luis Obispo County Regional in December 2024

76.2%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 December 2024, reporting carriers scheduled 505 domestic departures from San Luis Obispo County Regional (SBP). 76.2% left less than 15 minutes late and 76.4% reached their destination on time; 3.8% were cancelled.

Nationally that month, 77.8% of flights departed on time and 78.1% arrived on time, so SBP departures were 1.6 points below the national departure figure.

A year earlier, in December 2023, the airport had 434 departures with 83.9% leaving on time: a change of −7.7 points, with flights up 16%.

Flights arriving at SBP that month were on time 73.6% of the time (503 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 35%, air carrier 29% and extreme weather 21%.

On time 76.4%
Arrived 15+ minutes late 19.6%
Cancelled 3.8%
Diverted 0.2%

Every scheduled departure from SBP in December 2024, judged by arrival at the destination.

December 2024 against a year earlier, the airport's year and the nation

Measure	Dec 2024	Dec 2023	SBP, 12 months to Jul 2026	All reported flights, Dec 2024
Departed on time	76.2%	83.9%	78.8%	77.8%
Arrived on time	76.4%	82.5%	75.3%	78.1%
Cancelled	3.8%	0.0%	1.2%	0.7%
Average departure delay (late minutes only)	24.0 min	19.8 min	20.9 min	16.6 min
Scheduled departures a day	17	15	14	19,686
Scheduled departures	505	434	5,010	590,581

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	376	74%	75.3%	14.7 min	5.1%
AA American Airlines	51	10%	76.5%	16.9 min	0.0%
MQ Envoy Air	38	8%	86.8%	0.3 min	0.0%
AS Alaska Airlines	25	5%	88.0%	9.7 min	0.0%
UA United Airlines	15	3%	60.0%	69.5 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
SBP–PHX	San Luis Obispo to Phoenix	112	84.8%	13.2 min	0.9%
SBP–SFO	San Luis Obispo to San Francisco	93	73.1%	11.4 min	4.3%
SBP–DEN	San Luis Obispo to Denver	62	80.6%	24.3 min	0.0%
SBP–LAX	San Luis Obispo to Los Angeles	61	63.9%	25.8 min	6.6%
SBP–SAN	San Luis Obispo to San Diego	61	68.9%	5.9 min	13.1%
SBP–PDX	San Luis Obispo to Portland	31	87.1%	-0.3 min	0.0%
SBP–SEA	San Luis Obispo to Seattle	31	87.1%	7.8 min	0.0%
SBP–LAS	San Luis Obispo to Las Vegas	30	66.7%	41.9 min	6.7%
SBP–DFW	San Luis Obispo to Dallas/Fort Worth	24	75.0%	8.7 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), December 2024.

Delay causes

BTS cause category	Share of delay minutes	National, Dec 2024	Minutes
Air carrier	28.6%	34.3%	3,197
Late-arriving aircraft	34.8%	40.2%	3,881
National Aviation System	15.4%	17.8%	1,720
Extreme weather	21.1%	7.5%	2,352
Security	0.2%	0.2%	18

11,168 delay minutes on 99 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 December 2024?

76.2% of 505 scheduled domestic departures left less than 15 minutes late, and 76.4% reached their destination on time. The national figures that month were 77.8% and 78.1%.

How does that compare with a year earlier?

In December 2023, 83.9% of 434 departures left on time and 0.0% were cancelled, against 76.2% and 3.8% in December 2024.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for December 2024; 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.