Ellison Onizuka Kona International at Keahole in August 2024

88.3%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 2024, reporting carriers scheduled 1,409 domestic departures from Ellison Onizuka Kona International at Keahole (KOA). 88.3% left less than 15 minutes late and 90.1% reached their destination on time; 0.7% were cancelled.

Nationally that month, 75.4% of flights departed on time and 74.7% arrived on time, so KOA departures were 12.9 points above the national departure figure.

A year earlier, in August 2023, the airport had 1,512 departures with 86.4% leaving on time: a change of +1.9 points, with flights down 7%.

Flights arriving at KOA that month were on time 84.4% of the time (1,407 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 50%, air carrier 46% and national aviation system 4%.

On time 90.1%
Arrived 15+ minutes late 9.2%
Cancelled 0.7%
Diverted 0.1%

Every scheduled departure from KOA in August 2024, judged by arrival at the destination.

August 2024 against a year earlier, the airport's year and the nation

Measure	Aug 2024	Aug 2023	KOA, 12 months to Jul 2026	All reported flights, Aug 2024
Departed on time	88.3%	86.4%	85.7%	75.4%
Arrived on time	90.1%	88.1%	84.7%	74.7%
Cancelled	0.7%	0.6%	1.1%	2.1%
Average departure delay (late minutes only)	8.7 min	7.5 min	8.7 min	18.4 min
Scheduled departures a day	47	50	44	20,634
Scheduled departures	1,409	1,512	16,052	619,025

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
HA Hawaiian Airlines	668	47%	89.4%	0.9 min	1.0%
WN Southwest Airlines	287	20%	96.5%	-9.8 min	0.3%
AS Alaska Airlines	186	13%	86.6%	1.2 min	0.5%
UA United Airlines	145	10%	86.9%	-0.1 min	0.7%
DL Delta Air Lines	62	4%	91.9%	-3.6 min	0.0%
AA American Airlines	61	4%	83.6%	-1.9 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
KOA–HNL	Kona to Honolulu	686	91.7%	-2.5 min	1.0%
KOA–LAX	Kona to Los Angeles	146	72.6%	21.3 min	0.7%
KOA–OGG	Kona to Kahului	128	92.2%	-1.1 min	0.0%
KOA–SEA	Kona to Seattle	124	87.1%	1.2 min	0.8%
KOA–SFO	Kona to San Francisco	65	95.4%	-20.3 min	0.0%
KOA–DEN	Kona to Denver	31	96.8%	-18.7 min	0.0%
KOA–LAS	Kona to Las Vegas	31	100.0%	-19.1 min	0.0%
KOA–LIH	Kona to Lihue	31	96.8%	1.0 min	0.0%
KOA–OAK	Kona to Oakland	31	100.0%	-19.3 min	0.0%
KOA–PDX	Kona to Portland	31	87.1%	6.4 min	0.0%
KOA–SAN	Kona to San Diego	31	87.1%	-5.5 min	0.0%
KOA–SJC	Kona to San Jose	31	93.5%	-6.4 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), August 2024.

Delay causes

BTS cause category	Share of delay minutes	National, Aug 2024	Minutes
Air carrier	45.5%	33.8%	4,112
Late-arriving aircraft	50.0%	39.8%	4,515
National Aviation System	3.5%	20.4%	318
Extreme weather	0.0%	5.9%	2
Security	1.0%	0.1%	88

9,035 delay minutes on 129 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 KOA on time in August 2024?

88.3% of 1,409 scheduled domestic departures left less than 15 minutes late, and 90.1% reached their destination on time. The national figures that month were 75.4% and 74.7%.

How does that compare with a year earlier?

In August 2023, 86.4% of 1,512 departures left on time and 0.6% were cancelled, against 88.3% and 0.7% in August 2024.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for August 2024; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for KOA · methodology · corrections.