San Francisco International in July 2025

75.6%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 2025, reporting carriers scheduled 12,958 domestic departures from San Francisco International (SFO). 75.6% left less than 15 minutes late and 72.6% reached their destination on time; 1.1% were cancelled.

Nationally that month, 69.7% of flights departed on time and 69.0% arrived on time, so SFO departures were 5.9 points above the national departure figure.

A year earlier, in July 2024, the airport had 11,828 departures with 74.6% leaving on time: a change of +1.0 points, with flights up 10%.

Flights arriving at SFO that month were on time 70.1% of the time (12,960 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 43%, air carrier 28% and national aviation system 27%.

On time 72.6%
Arrived 15+ minutes late 25.7%
Cancelled 1.1%
Diverted 0.6%

Every scheduled departure from SFO in July 2025, judged by arrival at the destination.

July 2025 against a year earlier, the airport's year and the nation

Measure	Jul 2025	Jul 2024	SFO, 12 months to Jul 2026	All reported flights, Jul 2025
Departed on time	75.6%	74.6%	75.1%	69.7%
Arrived on time	72.6%	74.9%	75.6%	69.0%
Cancelled	1.1%	2.4%	1.0%	2.5%
Average departure delay (late minutes only)	17.6 min	18.7 min	17.8 min	24.3 min
Scheduled departures a day	432	394	404	21,048
Scheduled departures	12,958	11,828	147,566	631,428

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
UA United Airlines	5,112	39%	74.3%	9.9 min	1.1%
OO SkyWest Airlines	2,957	23%	76.5%	8.6 min	0.2%
DL Delta Air Lines	1,233	10%	75.2%	6.9 min	0.7%
AA American Airlines	1,118	9%	71.3%	23.5 min	2.4%
AS Alaska Airlines	1,041	8%	66.5%	13.0 min	2.1%
WN Southwest Airlines	704	5%	61.8%	19.6 min	0.7%
B6 JetBlue Airways	401	3%	69.1%	12.5 min	3.2%
F9 Frontier Airlines	308	2%	55.2%	37.2 min	2.6%
HA Hawaiian Airlines	84	1%	66.7%	12.3 min	2.4%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
SFO–LAX	San Francisco to Los Angeles	896	73.3%	10.7 min	0.3%
SFO–SEA	San Francisco to Seattle	639	65.6%	12.1 min	2.0%
SFO–JFK	San Francisco to New York	582	65.3%	13.3 min	3.6%
SFO–SAN	San Francisco to San Diego	582	67.2%	13.8 min	0.5%
SFO–ORD	San Francisco to Chicago	534	68.5%	23.5 min	3.0%
SFO–LAS	San Francisco to Las Vegas	496	75.6%	12.6 min	1.4%
SFO–DEN	San Francisco to Denver	463	64.4%	18.7 min	1.7%
SFO–BOS	San Francisco to Boston	450	75.8%	8.2 min	0.2%
SFO–EWR	San Francisco to Newark	397	59.2%	23.9 min	3.8%
SFO–SNA	San Francisco to Santa Ana	397	77.1%	6.9 min	0.3%
SFO–DFW	San Francisco to Dallas/Fort Worth	368	69.8%	16.5 min	1.9%
SFO–PHX	San Francisco to Phoenix	356	71.1%	20.9 min	0.8%

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 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Jul 2025	Minutes
Air carrier	28.4%	31.1%	63,025
Late-arriving aircraft	43.1%	40.8%	95,588
National Aviation System	27.0%	20.7%	59,922
Extreme weather	1.2%	7.3%	2,733
Security	0.2%	0.1%	489

221,757 delay minutes on 3,324 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 July 2025?

75.6% of 12,958 scheduled domestic departures left less than 15 minutes late, and 72.6% reached their destination on time. The national figures that month were 69.7% and 69.0%.

How does that compare with a year earlier?

In July 2024, 74.6% of 11,828 departures left on time and 2.4% were cancelled, against 75.6% and 1.1% in July 2025.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for July 2025; 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.