Ellison Onizuka Kona International at Keahole in December 2024

88.1%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 2024, reporting carriers scheduled 1,391 domestic departures from Ellison Onizuka Kona International at Keahole (KOA). 88.1% left less than 15 minutes late and 88.9% reached their destination on time; 0.5% were cancelled.

Nationally that month, 77.8% of flights departed on time and 78.1% arrived on time, so KOA departures were 10.3 points above the national departure figure.

A year earlier, in December 2023, the airport had 1,463 departures with 86.5% leaving on time: a change of +1.6 points, with flights down 5%.

Flights arriving at KOA that month were on time 86.3% of the time (1,391 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 65%, air carrier 26% and national aviation system 6%.

On time 88.9%
Arrived 15+ minutes late 10.4%
Cancelled 0.5%
Diverted 0.3%

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

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

Measure	Dec 2024	Dec 2023	KOA, 12 months to Jul 2026	All reported flights, Dec 2024
Departed on time	88.1%	86.5%	85.7%	77.8%
Arrived on time	88.9%	87.6%	84.7%	78.1%
Cancelled	0.5%	1.0%	1.1%	0.7%
Average departure delay (late minutes only)	6.5 min	7.1 min	8.7 min	16.6 min
Scheduled departures a day	46	49	44	19,686
Scheduled departures	1,391	1,463	16,052	590,581

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
HA Hawaiian Airlines	656	47%	88.6%	0.5 min	0.2%
WN Southwest Airlines	279	20%	95.3%	-7.3 min	1.1%
AS Alaska Airlines	183	13%	84.7%	-5.5 min	0.5%
UA United Airlines	136	10%	89.7%	-4.8 min	0.0%
AA American Airlines	75	5%	94.7%	-12.3 min	0.0%
DL Delta Air Lines	62	4%	66.1%	10.3 min	3.2%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
KOA–HNL	Kona to Honolulu	674	89.8%	-1.1 min	0.4%
KOA–LAX	Kona to Los Angeles	137	82.5%	3.5 min	0.0%
KOA–OGG	Kona to Kahului	124	93.5%	-4.0 min	0.8%
KOA–SEA	Kona to Seattle	108	86.1%	-10.3 min	1.9%
KOA–SFO	Kona to San Francisco	59	88.1%	-1.5 min	0.0%
KOA–PHX	Kona to Phoenix	44	97.7%	-16.6 min	0.0%
KOA–DEN	Kona to Denver	31	87.1%	-9.0 min	0.0%
KOA–LAS	Kona to Las Vegas	31	93.5%	-6.4 min	0.0%
KOA–LIH	Kona to Lihue	31	93.5%	0.4 min	0.0%
KOA–OAK	Kona to Oakland	31	100.0%	-11.4 min	0.0%
KOA–PDX	Kona to Portland	31	87.1%	-11.1 min	0.0%
KOA–SAN	Kona to San Diego	31	77.4%	1.7 min	3.2%

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 2024.

Delay causes

BTS cause category	Share of delay minutes	National, Dec 2024	Minutes
Air carrier	25.8%	34.3%	1,759
Late-arriving aircraft	65.4%	40.2%	4,461
National Aviation System	6.0%	17.8%	412
Extreme weather	2.7%	7.5%	187
Security	0.1%	0.2%	5

6,824 delay minutes on 144 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 December 2024?

88.1% of 1,391 scheduled domestic departures left less than 15 minutes late, and 88.9% reached their destination on time. The national figures that month were 77.8% and 78.1%.

How does that compare with a year earlier?

In December 2023, 86.5% of 1,463 departures left on time and 1.0% were cancelled, against 88.1% and 0.5% in December 2024.

Provenance

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