California Redwood Coast Humboldt County in September 2025

86.0%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 September 2025, reporting carriers scheduled 157 domestic departures from California Redwood Coast Humboldt County (ACV). 86.0% left less than 15 minutes late and 68.8% reached their destination on time; 0.0% were cancelled.

Nationally that month, 83.1% of flights departed on time and 82.8% arrived on time, so ACV departures were 2.9 points above the national departure figure.

A year earlier, in September 2024, the airport had 151 departures with 78.1% leaving on time: a change of +7.9 points, with flights up 4%.

Flights arriving at ACV that month were on time 84.1% of the time (157 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 36%, late-arriving aircraft 30% and extreme weather 27%.

On time 68.8%
Arrived 15+ minutes late 31.2%
Cancelled 0.0%
Diverted 0.0%

Every scheduled departure from ACV in September 2025, judged by arrival at the destination.

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

Measure	Sep 2025	Sep 2024	ACV, 12 months to Jul 2026	All reported flights, Sep 2025
Departed on time	86.0%	78.1%	76.0%	83.1%
Arrived on time	68.8%	76.8%	67.1%	82.8%
Cancelled	0.0%	4.0%	2.4%	0.5%
Average departure delay (late minutes only)	31.3 min	40.0 min	23.8 min	12.2 min
Scheduled departures a day	5	5	6	18,748
Scheduled departures	157	151	2,200	562,439

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	157	100%	68.8%	29.5 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
ACV–SFO	Arcata/Eureka to San Francisco	97	58.8%	42.1 min	0.0%
ACV–DEN	Arcata/Eureka to Denver	30	80.0%	12.3 min	0.0%
ACV–LAX	Arcata/Eureka to Los Angeles	30	90.0%	6.1 min	0.0%

By scheduled departure hour

100

On-time share:under 62%6270768288% and over

Share of departures that left less than 15 minutes late, by scheduled hour (local time), September 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Sep 2025	Minutes
Air carrier	35.7%	34.3%	2,066
Late-arriving aircraft	30.1%	37.4%	1,743
National Aviation System	7.0%	22.6%	408
Extreme weather	27.2%	5.6%	1,578
Security	0.0%	0.1%	0

5,795 delay minutes on 49 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 ACV on time in September 2025?

86.0% of 157 scheduled domestic departures left less than 15 minutes late, and 68.8% reached their destination on time. The national figures that month were 83.1% and 82.8%.

How does that compare with a year earlier?

In September 2024, 78.1% of 151 departures left on time and 4.0% were cancelled, against 86.0% and 0.0% in September 2025.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for September 2025; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for ACV · methodology · corrections.