Oakland International in January 2026

86.5%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 January 2026, reporting carriers scheduled 2,408 domestic departures from Oakland International (OAK). 86.5% left less than 15 minutes late and 87.9% reached their destination on time; 0.5% were cancelled.

Nationally that month, 75.6% of flights departed on time and 75.3% arrived on time, so OAK departures were 10.9 points above the national departure figure.

A year earlier, in January 2025, the airport had 2,868 departures with 85.9% leaving on time: a change of +0.6 points, with flights down 16%.

Flights arriving at OAK that month were on time 87.0% of the time (2,406 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 42%, air carrier 30% and national aviation system 20%.

On time 87.9%
Arrived 15+ minutes late 11.5%
Cancelled 0.5%
Diverted 0.1%

Every scheduled departure from OAK in January 2026, judged by arrival at the destination.

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

Measure	Jan 2026	Jan 2025	OAK, 12 months to Jul 2026	All reported flights, Jan 2026
Departed on time	86.5%	85.9%	75.5%	75.6%
Arrived on time	87.9%	88.3%	78.5%	75.3%
Cancelled	0.5%	0.9%	0.6%	4.7%
Average departure delay (late minutes only)	8.0 min	7.2 min	13.4 min	16.7 min
Scheduled departures a day	80	96	86	18,133
Scheduled departures	2,408	2,868	31,406	544,003

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
WN Southwest Airlines	2,185	91%	87.6%	-1.7 min	0.4%
AS Alaska Airlines	119	5%	87.4%	-8.1 min	2.5%
OO SkyWest Airlines	94	4%	95.7%	-9.8 min	0.0%
G4 Allegiant Air	10	0%	90.0%	76.8 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
OAK–LAS	Oakland to Las Vegas	237	84.4%	1.3 min	0.0%
OAK–SAN	Oakland to San Diego	222	76.1%	9.7 min	0.9%
OAK–BUR	Oakland to Burbank	209	91.4%	-5.0 min	0.0%
OAK–SNA	Oakland to Santa Ana	165	90.9%	-5.1 min	0.0%
OAK–LAX	Oakland to Los Angeles	159	93.7%	-7.0 min	0.0%
OAK–PHX	Oakland to Phoenix	152	87.5%	-1.5 min	0.0%
OAK–SEA	Oakland to Seattle	147	86.4%	-3.4 min	1.4%
OAK–LGB	Oakland to Long Beach	143	88.8%	-4.8 min	0.0%
OAK–SLC	Oakland to Salt Lake City	142	91.5%	-5.8 min	0.0%
OAK–DEN	Oakland to Denver	121	87.6%	4.2 min	0.0%
OAK–ONT	Oakland to Ontario	120	93.3%	-6.4 min	0.8%
OAK–PDX	Oakland to Portland	96	93.8%	-4.0 min	0.0%

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), January 2026.

Delay causes

BTS cause category	Share of delay minutes	National, Jan 2026	Minutes
Air carrier	29.9%	37.3%	4,490
Late-arriving aircraft	41.9%	35.0%	6,290
National Aviation System	19.8%	18.0%	2,974
Extreme weather	8.3%	9.6%	1,246
Security	0.0%	0.1%	0

15,000 delay minutes on 278 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 January 2026?

86.5% of 2,408 scheduled domestic departures left less than 15 minutes late, and 87.9% reached their destination on time. The national figures that month were 75.6% and 75.3%.

How does that compare with a year earlier?

In January 2025, 85.9% of 2,868 departures left on time and 0.9% were cancelled, against 86.5% and 0.5% in January 2026.

Provenance

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