San Diego International in October 2023

81.0%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 October 2023, reporting carriers scheduled 8,026 domestic departures from San Diego International (SAN). 81.0% left less than 15 minutes late and 80.3% reached their destination on time; 0.3% were cancelled.

Nationally that month, 83.8% of flights departed on time and 84.0% arrived on time, so SAN departures were 2.8 points below the national departure figure.

Flights arriving at SAN that month were on time 80.0% of the time (8,023 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 48%, air carrier 28% and national aviation system 18%.

On time 80.3%
Arrived 15+ minutes late 19.1%
Cancelled 0.3%
Diverted 0.3%

Every scheduled departure from SAN in October 2023, judged by arrival at the destination.

October 2023 against a year earlier, the airport's year and the nation

Measure	Oct 2023	Year earlier	SAN, 12 months to Jul 2026	All reported flights, Oct 2023
Departed on time	81.0%	—	73.5%	83.8%
Arrived on time	80.3%	—	76.1%	84.0%
Cancelled	0.3%	—	1.3%	0.4%
Average departure delay (late minutes only)	12.5 min	—	16.6 min	11.0 min
Scheduled departures a day	268	—	275	19,966
Scheduled departures	8,026	—	100,196	598,968

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
WN Southwest Airlines	3,153	39%	74.4%	8.1 min	0.5%
UA United Airlines	954	12%	88.4%	-6.5 min	0.1%
OO SkyWest Airlines	912	11%	82.7%	2.7 min	0.2%
DL Delta Air Lines	820	10%	89.5%	-3.2 min	0.0%
AA American Airlines	756	9%	86.0%	-4.8 min	0.4%
AS Alaska Airlines	752	9%	84.7%	-1.9 min	0.1%
F9 Frontier Airlines	238	3%	71.0%	21.7 min	0.0%
NK Spirit Airlines	186	2%	82.8%	1.0 min	0.5%
B6 JetBlue Airways	184	2%	57.6%	38.4 min	0.0%
HA Hawaiian Airlines	62	1%	75.8%	1.4 min	0.0%
G4 Allegiant Air	9	0%	44.4%	50.7 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
SAN–LAS	San Diego to Las Vegas	601	70.0%	10.2 min	0.8%
SAN–SFO	San Diego to San Francisco	507	76.9%	4.1 min	0.4%
SAN–PHX	San Diego to Phoenix	500	79.0%	5.0 min	0.8%
SAN–SJC	San Diego to San Jose	488	77.7%	6.1 min	1.0%
SAN–DEN	San Diego to Denver	477	81.3%	4.4 min	0.0%
SAN–SMF	San Diego to Sacramento	460	80.4%	4.4 min	0.4%
SAN–SEA	San Diego to Seattle	394	90.6%	-4.3 min	0.3%
SAN–OAK	San Diego to Oakland	335	77.0%	6.2 min	0.0%
SAN–DFW	San Diego to Dallas/Fort Worth	311	81.4%	4.0 min	1.0%
SAN–ORD	San Diego to Chicago	229	86.5%	-6.5 min	0.0%
SAN–JFK	San Diego to New York	214	76.6%	10.5 min	0.0%
SAN–ATL	San Diego to Atlanta	189	86.2%	3.2 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), October 2023.

Delay causes

BTS cause category	Share of delay minutes	National, Oct 2023	Minutes
Air carrier	28.0%	41.3%	25,632
Late-arriving aircraft	48.3%	40.5%	44,097
National Aviation System	17.8%	14.4%	16,311
Extreme weather	5.8%	3.7%	5,299
Security	0.1%	0.2%	48

91,387 delay minutes on 1,535 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 SAN on time in October 2023?

81.0% of 8,026 scheduled domestic departures left less than 15 minutes late, and 80.3% reached their destination on time. The national figures that month were 83.8% and 84.0%.

How does that compare with a year earlier?

October 2022 is outside the 36 months on file, or the airport had too few reported flights that month.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for October 2023; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for SAN · methodology · corrections.