California Redwood Coast Humboldt County in May 2026

72.2%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 2026, reporting carriers scheduled 216 domestic departures from California Redwood Coast Humboldt County (ACV). 72.2% left less than 15 minutes late and 64.4% reached their destination on time; 1.4% were cancelled.

Nationally that month, 77.1% of flights departed on time and 77.6% arrived on time, so ACV departures were 4.9 points below the national departure figure.

A year earlier, in May 2025, the airport had 173 departures with 86.1% leaving on time: a change of −13.9 points, with flights up 25%.

Flights arriving at ACV that month were on time 77.0% of the time (217 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, national aviation system 50%, late-arriving aircraft 23% and extreme weather 16%.

On time 64.4%
Arrived 15+ minutes late 33.8%
Cancelled 1.4%
Diverted 0.5%

Every scheduled departure from ACV in May 2026, judged by arrival at the destination.

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

Measure	May 2026	May 2025	ACV, 12 months to Jul 2026	All reported flights, May 2026
Departed on time	72.2%	86.1%	76.0%	77.1%
Arrived on time	64.4%	78.6%	67.1%	77.6%
Cancelled	1.4%	0.0%	2.4%	0.9%
Average departure delay (late minutes only)	21.6 min	9.4 min	23.8 min	16.0 min
Scheduled departures a day	7	6	6	20,391
Scheduled departures	216	173	2,200	611,735

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
OO SkyWest Airlines	216	100%	64.4%	19.6 min	1.4%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
ACV–SFO	Arcata/Eureka to San Francisco	113	49.6%	31.8 min	2.7%
ACV–LAX	Arcata/Eureka to Los Angeles	41	97.6%	-7.4 min	0.0%
ACV–DEN	Arcata/Eureka to Denver	31	64.5%	24.1 min	0.0%
ACV–SEA	Arcata/Eureka to Seattle	31	74.2%	7.7 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 2026.

Delay causes

BTS cause category	Share of delay minutes	National, May 2026	Minutes
Air carrier	10.6%	33.0%	554
Late-arriving aircraft	23.3%	40.4%	1,213
National Aviation System	49.8%	20.5%	2,589
Extreme weather	16.3%	6.0%	847
Security	0.0%	0.1%	0

5,203 delay minutes on 73 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 2026?

72.2% of 216 scheduled domestic departures left less than 15 minutes late, and 64.4% reached their destination on time. The national figures that month were 77.1% and 77.6%.

How does that compare with a year earlier?

In May 2025, 86.1% of 173 departures left on time and 0.0% were cancelled, against 72.2% and 1.4% in May 2026.

Provenance

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