California Redwood Coast Humboldt County in December 2025

76.1%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 December 2025, reporting carriers scheduled 180 domestic departures from California Redwood Coast Humboldt County (ACV). 76.1% left less than 15 minutes late and 69.4% reached their destination on time; 3.3% were cancelled.

Nationally that month, 72.0% of flights departed on time and 71.9% arrived on time, so ACV departures were 4.1 points above the national departure figure.

A year earlier, in December 2024, the airport had 155 departures with 88.4% leaving on time: a change of −12.3 points, with flights up 16%.

Flights arriving at ACV that month were on time 70.9% of the time (179 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, national aviation system 36%, late-arriving aircraft 26% and air carrier 21%.

On time 69.4%
Arrived 15+ minutes late 26.7%
Cancelled 3.3%
Diverted 0.6%

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

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

Measure	Dec 2025	Dec 2024	ACV, 12 months to Jul 2026	All reported flights, Dec 2025
Departed on time	76.1%	88.4%	76.0%	72.0%
Arrived on time	69.4%	80.6%	67.1%	71.9%
Cancelled	3.3%	0.0%	2.4%	1.5%
Average departure delay (late minutes only)	18.4 min	10.6 min	23.8 min	21.2 min
Scheduled departures a day	6	5	6	19,410
Scheduled departures	180	155	2,200	582,304

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	180	100%	69.4%	12.2 min	3.3%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
ACV–SFO	Arcata/Eureka to San Francisco	117	64.1%	14.5 min	5.1%
ACV–LAX	Arcata/Eureka to Los Angeles	32	68.8%	17.3 min	0.0%
ACV–DEN	Arcata/Eureka to Denver	31	90.3%	-1.4 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), December 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Dec 2025	Minutes
Air carrier	20.5%	33.3%	739
Late-arriving aircraft	25.6%	41.1%	922
National Aviation System	36.4%	19.1%	1,313
Extreme weather	17.5%	6.4%	632
Security	0.0%	0.2%	0

3,606 delay minutes on 48 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 December 2025?

76.1% of 180 scheduled domestic departures left less than 15 minutes late, and 69.4% reached their destination on time. The national figures that month were 72.0% and 71.9%.

How does that compare with a year earlier?

In December 2024, 88.4% of 155 departures left on time and 0.0% were cancelled, against 76.1% and 3.3% in December 2025.

Provenance

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