San Francisco International in June 2024

73.8%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 June 2024, reporting carriers scheduled 10,256 domestic departures from San Francisco International (SFO). 73.8% left less than 15 minutes late and 76.9% reached their destination on time; 0.7% were cancelled.

Nationally that month, 73.7% of flights departed on time and 73.9% arrived on time, so SFO departures were level with the national departure figure.

Flights arriving at SFO that month were on time 67.2% of the time (10,263 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 49%, air carrier 32% and national aviation system 18%.

On time 76.9%
Arrived 15+ minutes late 22.1%
Cancelled 0.7%
Diverted 0.4%

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

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

Measure	Jun 2024	Year earlier	SFO, 12 months to Jul 2026	All reported flights, Jun 2024
Departed on time	73.8%	—	75.1%	73.7%
Arrived on time	76.9%	—	75.6%	73.9%
Cancelled	0.7%	—	1.0%	1.3%
Average departure delay (late minutes only)	19.4 min	—	17.8 min	19.7 min
Scheduled departures a day	342	—	404	20,371
Scheduled departures	10,256	—	147,566	611,132

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
UA United Airlines	4,028	39%	82.4%	-1.1 min	0.6%
OO SkyWest Airlines	1,664	16%	80.5%	3.5 min	0.6%
DL Delta Air Lines	1,162	11%	75.9%	9.5 min	0.1%
AS Alaska Airlines	1,101	11%	73.1%	7.4 min	0.5%
AA American Airlines	861	8%	71.4%	21.1 min	1.4%
WN Southwest Airlines	612	6%	69.6%	13.8 min	0.0%
F9 Frontier Airlines	406	4%	43.1%	48.4 min	2.2%
B6 JetBlue Airways	362	4%	73.8%	8.7 min	1.4%
HA Hawaiian Airlines	60	1%	88.3%	12.2 min	1.7%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
SFO–LAX	San Francisco to Los Angeles	858	73.7%	9.0 min	0.5%
SFO–JFK	San Francisco to New York	575	77.2%	8.9 min	0.5%
SFO–SEA	San Francisco to Seattle	523	67.5%	11.8 min	0.4%
SFO–ORD	San Francisco to Chicago	465	77.0%	3.2 min	1.1%
SFO–DEN	San Francisco to Denver	460	73.3%	10.1 min	0.9%
SFO–LAS	San Francisco to Las Vegas	437	67.7%	19.5 min	0.2%
SFO–SAN	San Francisco to San Diego	429	71.8%	10.3 min	0.5%
SFO–BOS	San Francisco to Boston	395	75.7%	9.7 min	0.5%
SFO–PHX	San Francisco to Phoenix	357	74.8%	13.1 min	0.3%
SFO–DFW	San Francisco to Dallas/Fort Worth	355	65.9%	27.5 min	0.8%
SFO–EWR	San Francisco to Newark	326	72.1%	11.3 min	2.5%
SFO–SNA	San Francisco to Santa Ana	285	79.3%	2.2 min	1.4%

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), June 2024.

Delay causes

BTS cause category	Share of delay minutes	National, Jun 2024	Minutes
Air carrier	32.2%	34.4%	53,668
Late-arriving aircraft	48.5%	41.5%	80,746
National Aviation System	18.2%	17.8%	30,360
Extreme weather	1.0%	6.0%	1,736
Security	0.0%	0.2%	58

166,568 delay minutes on 2,267 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 June 2024?

73.8% of 10,256 scheduled domestic departures left less than 15 minutes late, and 76.9% reached their destination on time. The national figures that month were 73.7% and 73.9%.

How does that compare with a year earlier?

June 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 June 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.