California Redwood Coast Humboldt County in May 2025

86.1%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 May 2025, reporting carriers scheduled 173 domestic departures from California Redwood Coast Humboldt County (ACV). 86.1% left less than 15 minutes late and 78.6% reached their destination on time; 0.0% were cancelled.

Nationally that month, 76.7% of flights departed on time and 75.4% arrived on time, so ACV departures were 9.4 points above the national departure figure.

A year earlier, in May 2024, the airport had 122 departures with 78.7% leaving on time: a change of +7.4 points, with flights up 42%.

Flights arriving at ACV that month were on time 82.1% of the time (173 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 46%, late-arriving aircraft 36% and national aviation system 10%.

On time 78.6%
Arrived 15+ minutes late 20.2%
Cancelled 0.0%
Diverted 1.2%

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

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

Measure	May 2025	May 2024	ACV, 12 months to Jul 2026	All reported flights, May 2025
Departed on time	86.1%	78.7%	76.0%	76.7%
Arrived on time	78.6%	76.2%	67.1%	75.4%
Cancelled	0.0%	0.8%	2.4%	1.0%
Average departure delay (late minutes only)	9.4 min	20.6 min	23.8 min	17.5 min
Scheduled departures a day	6	4	6	20,188
Scheduled departures	173	122	2,200	605,648

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	173	100%	78.6%	5.2 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
ACV–SFO	Arcata/Eureka to San Francisco	111	79.3%	8.4 min	0.0%
ACV–DEN	Arcata/Eureka to Denver	31	74.2%	0.2 min	0.0%
ACV–LAX	Arcata/Eureka to Los Angeles	31	80.6%	-1.6 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), May 2025.

Delay causes

BTS cause category	Share of delay minutes	National, May 2025	Minutes
Air carrier	46.4%	29.3%	910
Late-arriving aircraft	36.2%	37.8%	710
National Aviation System	10.4%	25.9%	204
Extreme weather	7.1%	6.9%	139
Security	0.0%	0.1%	0

1,963 delay minutes on 35 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 May 2025?

86.1% of 173 scheduled domestic departures left less than 15 minutes late, and 78.6% reached their destination on time. The national figures that month were 76.7% and 75.4%.

How does that compare with a year earlier?

In May 2024, 78.7% of 122 departures left on time and 0.8% were cancelled, against 86.1% and 0.0% in May 2025.

Provenance

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