San Diego International in July 2024

70.4%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 2024, reporting carriers scheduled 8,721 domestic departures from San Diego International (SAN). 70.4% left less than 15 minutes late and 68.1% reached their destination on time; 1.9% were cancelled.

Nationally that month, 68.5% of flights departed on time and 68.1% arrived on time, so SAN departures were 1.9 points above the national departure figure.

Flights arriving at SAN that month were on time 67.0% of the time (8,721 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 51%, air carrier 27% and national aviation system 20%.

On time 68.1%
Arrived 15+ minutes late 29.6%
Cancelled 1.9%
Diverted 0.4%

Every scheduled departure from SAN in July 2024, judged by arrival at the destination.

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

Measure	Jul 2024	Year earlier	SAN, 12 months to Jul 2026	All reported flights, Jul 2024
Departed on time	70.4%	—	73.5%	68.5%
Arrived on time	68.1%	—	76.1%	68.1%
Cancelled	1.9%	—	1.3%	2.9%
Average departure delay (late minutes only)	20.6 min	—	16.6 min	24.9 min
Scheduled departures a day	291	—	275	21,154
Scheduled departures	8,721	—	100,196	634,613

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
WN Southwest Airlines	3,090	35%	66.4%	14.3 min	0.5%
OO SkyWest Airlines	1,109	13%	72.8%	12.9 min	0.5%
AS Alaska Airlines	1,031	12%	72.9%	7.3 min	0.9%
UA United Airlines	898	10%	70.8%	12.5 min	3.6%
DL Delta Air Lines	850	10%	66.2%	20.9 min	5.8%
AA American Airlines	823	9%	66.8%	27.2 min	2.4%
NK Spirit Airlines	367	4%	62.7%	19.9 min	4.4%
F9 Frontier Airlines	302	3%	65.6%	23.1 min	5.0%
B6 JetBlue Airways	155	2%	61.9%	28.5 min	0.0%
HA Hawaiian Airlines	62	1%	67.7%	12.6 min	0.0%
G4 Allegiant Air	34	0%	47.1%	43.8 min	5.9%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
SAN–LAS	San Diego to Las Vegas	573	65.6%	19.5 min	2.8%
SAN–SFO	San Diego to San Francisco	540	71.3%	12.1 min	2.6%
SAN–SJC	San Diego to San Jose	522	68.0%	14.9 min	0.8%
SAN–PHX	San Diego to Phoenix	504	67.3%	20.1 min	1.8%
SAN–DEN	San Diego to Denver	499	68.9%	15.9 min	0.6%
SAN–SMF	San Diego to Sacramento	492	68.7%	13.6 min	0.2%
SAN–SEA	San Diego to Seattle	438	77.9%	9.6 min	1.8%
SAN–DFW	San Diego to Dallas/Fort Worth	301	62.1%	25.6 min	2.7%
SAN–OAK	San Diego to Oakland	297	67.3%	11.8 min	1.7%
SAN–ORD	San Diego to Chicago	292	65.8%	20.0 min	4.1%
SAN–SLC	San Diego to Salt Lake City	242	74.0%	12.9 min	4.1%
SAN–ATL	San Diego to Atlanta	240	60.4%	32.1 min	5.8%

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 2024.

Delay causes

BTS cause category	Share of delay minutes	National, Jul 2024	Minutes
Air carrier	27.2%	36.6%	47,034
Late-arriving aircraft	51.2%	42.7%	88,390
National Aviation System	19.5%	16.0%	33,626
Extreme weather	2.0%	4.6%	3,499
Security	0.1%	0.1%	226

172,775 delay minutes on 2,580 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 July 2024?

70.4% of 8,721 scheduled domestic departures left less than 15 minutes late, and 68.1% reached their destination on time. The national figures that month were 68.5% and 68.1%.

How does that compare with a year earlier?

July 2023 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 July 2024; 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.