San Diego International in March 2026

77.1%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 2026, reporting carriers scheduled 8,547 domestic departures from San Diego International (SAN). 77.1% left less than 15 minutes late and 77.0% reached their destination on time; 1.0% were cancelled.

Nationally that month, 72.8% of flights departed on time and 73.2% arrived on time, so SAN departures were 4.3 points above the national departure figure.

A year earlier, in March 2025, the airport had 7,939 departures with 80.9% leaving on time: a change of −3.8 points, with flights up 8%.

Flights arriving at SAN that month were on time 78.6% of the time (8,544 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 41%, air carrier 33% and national aviation system 22%.

On time 77.0%
Arrived 15+ minutes late 21.4%
Cancelled 1.0%
Diverted 0.6%

Every scheduled departure from SAN in March 2026, judged by arrival at the destination.

March 2026 against a year earlier, the airport's year and the nation

Measure	Mar 2026	Mar 2025	SAN, 12 months to Jul 2026	All reported flights, Mar 2026
Departed on time	77.1%	80.9%	73.5%	72.8%
Arrived on time	77.0%	77.9%	76.1%	73.2%
Cancelled	1.0%	0.8%	1.3%	2.9%
Average departure delay (late minutes only)	15.6 min	12.5 min	16.6 min	20.3 min
Scheduled departures a day	285	265	275	20,403
Scheduled departures	8,547	7,939	100,196	612,102

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
WN Southwest Airlines	3,387	40%	74.8%	5.9 min	0.7%
OO SkyWest Airlines	1,211	14%	81.2%	-0.4 min	1.0%
AS Alaska Airlines	1,106	13%	74.3%	2.8 min	1.4%
UA United Airlines	885	10%	80.1%	7.6 min	0.9%
AA American Airlines	836	10%	76.8%	18.7 min	1.0%
DL Delta Air Lines	802	9%	81.2%	6.0 min	2.1%
F9 Frontier Airlines	169	2%	72.8%	17.7 min	1.2%
B6 JetBlue Airways	151	2%	76.2%	23.4 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
SAN–DEN	San Diego to Denver	538	80.9%	5.5 min	1.3%
SAN–PHX	San Diego to Phoenix	505	78.6%	9.0 min	0.4%
SAN–SFO	San Diego to San Francisco	490	82.4%	-3.6 min	0.8%
SAN–SMF	San Diego to Sacramento	469	80.8%	-0.7 min	0.4%
SAN–LAS	San Diego to Las Vegas	459	79.5%	3.4 min	0.7%
SAN–SJC	San Diego to San Jose	406	81.5%	-0.6 min	1.0%
SAN–SEA	San Diego to Seattle	388	77.3%	5.5 min	2.3%
SAN–ORD	San Diego to Chicago	332	70.5%	15.5 min	2.7%
SAN–SLC	San Diego to Salt Lake City	294	86.1%	1.3 min	0.7%
SAN–DFW	San Diego to Dallas/Fort Worth	292	76.7%	17.0 min	0.7%
SAN–AUS	San Diego to Austin	254	62.6%	16.9 min	0.4%
SAN–OAK	San Diego to Oakland	229	80.8%	1.4 min	0.9%

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), March 2026.

Delay causes

BTS cause category	Share of delay minutes	National, Mar 2026	Minutes
Air carrier	32.9%	33.5%	38,820
Late-arriving aircraft	40.8%	39.3%	48,168
National Aviation System	21.6%	21.0%	25,449
Extreme weather	4.6%	5.9%	5,377
Security	0.2%	0.2%	220

118,034 delay minutes on 1,832 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 March 2026?

77.1% of 8,547 scheduled domestic departures left less than 15 minutes late, and 77.0% reached their destination on time. The national figures that month were 72.8% and 73.2%.

How does that compare with a year earlier?

In March 2025, 80.9% of 7,939 departures left on time and 0.8% were cancelled, against 77.1% and 1.0% in March 2026.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for March 2026; 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.