San Francisco International in March 2024

70.0%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 March 2024, reporting carriers scheduled 10,894 domestic departures from San Francisco International (SFO). 70.0% left less than 15 minutes late and 70.7% reached their destination on time; 0.9% were cancelled.

Nationally that month, 78.5% of flights departed on time and 78.3% arrived on time, so SFO departures were 8.5 points below the national departure figure.

Flights arriving at SFO that month were on time 56.9% of the time (10,920 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 51%, air carrier 26% and national aviation system 22%.

On time 70.7%
Arrived 15+ minutes late 28.3%
Cancelled 0.9%
Diverted 0.2%

Every scheduled departure from SFO in March 2024, judged by arrival at the destination.

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

Measure	Mar 2024	Year earlier	SFO, 12 months to Jul 2026	All reported flights, Mar 2024
Departed on time	70.0%	—	75.1%	78.5%
Arrived on time	70.7%	—	75.6%	78.3%
Cancelled	0.9%	—	1.0%	0.9%
Average departure delay (late minutes only)	21.0 min	—	17.8 min	15.7 min
Scheduled departures a day	363	—	404	19,726
Scheduled departures	10,894	—	147,566	591,767

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
UA United Airlines	4,124	38%	76.2%	7.5 min	0.4%
OO SkyWest Airlines	2,843	26%	69.5%	11.2 min	1.5%
DL Delta Air Lines	998	9%	73.7%	8.1 min	0.2%
AS Alaska Airlines	829	8%	69.2%	10.9 min	0.8%
AA American Airlines	805	7%	68.7%	25.3 min	0.5%
WN Southwest Airlines	603	6%	54.4%	25.0 min	0.8%
B6 JetBlue Airways	357	3%	68.9%	28.9 min	0.6%
F9 Frontier Airlines	272	2%	35.7%	48.4 min	2.9%
HA Hawaiian Airlines	63	1%	74.6%	8.9 min	6.3%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
SFO–LAX	San Francisco to Los Angeles	941	63.4%	16.5 min	0.3%
SFO–SEA	San Francisco to Seattle	521	69.5%	12.1 min	0.6%
SFO–SAN	San Francisco to San Diego	509	65.0%	15.9 min	0.2%
SFO–JFK	San Francisco to New York	500	78.0%	11.5 min	0.6%
SFO–LAS	San Francisco to Las Vegas	464	52.4%	31.9 min	1.5%
SFO–PHX	San Francisco to Phoenix	453	64.0%	25.7 min	0.9%
SFO–DEN	San Francisco to Denver	450	67.8%	13.3 min	1.1%
SFO–ORD	San Francisco to Chicago	353	72.8%	8.3 min	1.4%
SFO–SNA	San Francisco to Santa Ana	340	68.5%	10.2 min	0.6%
SFO–DFW	San Francisco to Dallas/Fort Worth	330	61.5%	23.3 min	2.1%
SFO–BOS	San Francisco to Boston	326	74.8%	16.1 min	0.3%
SFO–EWR	San Francisco to Newark	323	75.9%	6.7 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 2024.

Delay causes

BTS cause category	Share of delay minutes	National, Mar 2024	Minutes
Air carrier	25.6%	32.1%	52,029
Late-arriving aircraft	50.6%	42.1%	102,644
National Aviation System	22.2%	21.4%	45,010
Extreme weather	1.6%	4.2%	3,179
Security	0.1%	0.2%	158

203,020 delay minutes on 3,078 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 SFO on time in March 2024?

70.0% of 10,894 scheduled domestic departures left less than 15 minutes late, and 70.7% reached their destination on time. The national figures that month were 78.5% and 78.3%.

How does that compare with a year earlier?

March 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 March 2024; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for SFO · methodology · corrections.