Oakland International in August 2023

74.7%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 August 2023, reporting carriers scheduled 4,047 domestic departures from Oakland International (OAK). 74.7% left less than 15 minutes late and 75.8% reached their destination on time; 1.9% were cancelled.

Nationally that month, 76.7% of flights departed on time and 76.9% arrived on time, so OAK departures were 2.0 points below the national departure figure.

Flights arriving at OAK that month were on time 75.2% of the time (4,049 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 49%, air carrier 35% and national aviation system 14%.

On time 75.8%
Arrived 15+ minutes late 22.0%
Cancelled 1.9%
Diverted 0.2%

Every scheduled departure from OAK in August 2023, judged by arrival at the destination.

August 2023 against a year earlier, the airport's year and the nation

Measure	Aug 2023	Year earlier	OAK, 12 months to Jul 2026	All reported flights, Aug 2023
Departed on time	74.7%	—	75.5%	76.7%
Arrived on time	75.8%	—	78.5%	76.9%
Cancelled	1.9%	—	0.6%	1.5%
Average departure delay (late minutes only)	12.6 min	—	13.4 min	17.3 min
Scheduled departures a day	135	—	86	20,100
Scheduled departures	4,047	—	31,406	602,987

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
WN Southwest Airlines	3,374	83%	74.8%	7.2 min	2.0%
NK Spirit Airlines	254	6%	72.0%	16.4 min	1.2%
OO SkyWest Airlines	177	4%	89.3%	-3.1 min	0.0%
HA Hawaiian Airlines	98	2%	75.5%	3.7 min	7.1%
AS Alaska Airlines	89	2%	91.0%	-4.9 min	0.0%
DL Delta Air Lines	31	1%	96.8%	-1.8 min	0.0%
G4 Allegiant Air	24	1%	83.3%	10.4 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
OAK–LAX	Oakland to Los Angeles	396	78.5%	3.8 min	1.3%
OAK–LAS	Oakland to Las Vegas	395	64.3%	16.5 min	2.8%
OAK–SAN	Oakland to San Diego	343	72.3%	7.7 min	4.4%
OAK–SEA	Oakland to Seattle	303	73.3%	7.0 min	0.7%
OAK–BUR	Oakland to Burbank	290	74.8%	5.5 min	5.5%
OAK–SNA	Oakland to Santa Ana	235	82.6%	1.7 min	3.0%
OAK–PDX	Oakland to Portland	219	77.6%	5.5 min	0.0%
OAK–DEN	Oakland to Denver	180	71.1%	10.9 min	0.6%
OAK–PHX	Oakland to Phoenix	180	78.3%	5.6 min	1.1%
OAK–SLC	Oakland to Salt Lake City	180	85.6%	1.9 min	0.0%
OAK–LGB	Oakland to Long Beach	149	83.2%	1.3 min	2.7%
OAK–ONT	Oakland to Ontario	143	80.4%	6.3 min	3.5%

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), August 2023.

Delay causes

BTS cause category	Share of delay minutes	National, Aug 2023	Minutes
Air carrier	35.4%	36.7%	14,516
Late-arriving aircraft	49.1%	42.2%	20,111
National Aviation System	13.9%	15.7%	5,680
Extreme weather	1.3%	5.1%	520
Security	0.3%	0.2%	121

40,948 delay minutes on 892 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 OAK on time in August 2023?

74.7% of 4,047 scheduled domestic departures left less than 15 minutes late, and 75.8% reached their destination on time. The national figures that month were 76.7% and 76.9%.

How does that compare with a year earlier?

August 2022 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 August 2023; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for OAK · methodology · corrections.