California Redwood Coast Humboldt County in August 2025

80.7%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 2025, reporting carriers scheduled 187 domestic departures from California Redwood Coast Humboldt County (ACV). 80.7% left less than 15 minutes late and 74.9% reached their destination on time; 2.7% were cancelled.

Nationally that month, 76.8% of flights departed on time and 76.3% arrived on time, so ACV departures were 3.9 points above the national departure figure.

A year earlier, in August 2024, the airport had 144 departures with 79.2% leaving on time: a change of +1.5 points, with flights up 30%.

Flights arriving at ACV that month were on time 75.3% of the time (186 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, extreme weather 53%, air carrier 29% and late-arriving aircraft 10%.

On time 74.9%
Arrived 15+ minutes late 21.9%
Cancelled 2.7%
Diverted 0.5%

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

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

Measure	Aug 2025	Aug 2024	ACV, 12 months to Jul 2026	All reported flights, Aug 2025
Departed on time	80.7%	79.2%	76.0%	76.8%
Arrived on time	74.9%	72.9%	67.1%	76.3%
Cancelled	2.7%	3.5%	2.4%	1.1%
Average departure delay (late minutes only)	26.1 min	16.2 min	23.8 min	17.6 min
Scheduled departures a day	6	5	6	20,079
Scheduled departures	187	144	2,200	602,378

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	187	100%	74.9%	21.5 min	2.7%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
ACV–SFO	Arcata/Eureka to San Francisco	119	72.3%	23.8 min	3.4%
ACV–DEN	Arcata/Eureka to Denver	37	70.3%	33.8 min	2.7%
ACV–LAX	Arcata/Eureka to Los Angeles	31	90.3%	-1.3 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), August 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Aug 2025	Minutes
Air carrier	29.3%	33.1%	1,494
Late-arriving aircraft	9.7%	40.5%	493
National Aviation System	7.7%	19.2%	392
Extreme weather	53.3%	7.0%	2,714
Security	0.0%	0.1%	0

5,093 delay minutes on 41 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 August 2025?

80.7% of 187 scheduled domestic departures left less than 15 minutes late, and 74.9% reached their destination on time. The national figures that month were 76.8% and 76.3%.

How does that compare with a year earlier?

In August 2024, 79.2% of 144 departures left on time and 3.5% were cancelled, against 80.7% and 2.7% in August 2025.

Provenance

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