Ellison Onizuka Kona International at Keahole in July 2026

87.2%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 July 2026, reporting carriers scheduled 1,415 domestic departures from Ellison Onizuka Kona International at Keahole (KOA). 87.2% left less than 15 minutes late and 87.1% reached their destination on time; 0.5% were cancelled.

Nationally that month, 68.8% of flights departed on time and 69.4% arrived on time, so KOA departures were 18.4 points above the national departure figure.

A year earlier, in July 2025, the airport had 1,382 departures with 84.8% leaving on time: a change of +2.4 points, with flights up 2%.

Flights arriving at KOA that month were on time 83.1% of the time (1,415 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 49%, air carrier 40% and national aviation system 10%.

On time 87.1%
Arrived 15+ minutes late 12.4%
Cancelled 0.5%
Diverted 0.0%

Every scheduled departure from KOA in July 2026, judged by arrival at the destination.

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

Measure	Jul 2026	Jul 2025	KOA, 12 months to Jul 2026	All reported flights, Jul 2026
Departed on time	87.2%	84.8%	85.7%	68.8%
Arrived on time	87.1%	85.3%	84.7%	69.4%
Cancelled	0.5%	1.0%	1.1%	2.6%
Average departure delay (late minutes only)	8.1 min	11.0 min	8.7 min	24.1 min
Scheduled departures a day	47	46	44	21,066
Scheduled departures	1,415	1,382	16,052	631,970

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
AS Alaska Airlines	819	58%	82.2%	4.6 min	0.4%
WN Southwest Airlines	251	18%	96.8%	-11.1 min	0.0%
UA United Airlines	221	16%	94.6%	-4.3 min	0.9%
AA American Airlines	62	4%	85.5%	-7.5 min	0.0%
DL Delta Air Lines	62	4%	87.1%	-8.2 min	3.2%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
KOA–HNL	Kona to Honolulu	598	82.8%	4.9 min	0.3%
KOA–LAX	Kona to Los Angeles	167	88.6%	1.6 min	0.6%
KOA–SFO	Kona to San Francisco	155	89.0%	-0.3 min	0.6%
KOA–OGG	Kona to Kahului	124	89.5%	0.1 min	0.0%
KOA–SEA	Kona to Seattle	123	87.0%	-9.0 min	2.4%
KOA–SMF	Kona to Sacramento	44	88.6%	-5.5 min	0.0%
KOA–DEN	Kona to Denver	31	100.0%	-25.2 min	0.0%
KOA–LAS	Kona to Las Vegas	31	100.0%	-24.6 min	0.0%
KOA–LIH	Kona to Lihue	31	96.8%	-1.5 min	0.0%
KOA–PDX	Kona to Portland	31	93.5%	-13.8 min	0.0%
KOA–PHX	Kona to Phoenix	31	96.8%	-15.7 min	0.0%
KOA–SAN	Kona to San Diego	31	96.8%	-13.6 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), July 2026.

Delay causes

BTS cause category	Share of delay minutes	National, Jul 2026	Minutes
Air carrier	40.1%	31.7%	3,728
Late-arriving aircraft	49.2%	41.8%	4,578
National Aviation System	10.2%	19.9%	946
Extreme weather	0.3%	6.5%	26
Security	0.2%	0.1%	20

9,298 delay minutes on 176 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 July 2026?

87.2% of 1,415 scheduled domestic departures left less than 15 minutes late, and 87.1% reached their destination on time. The national figures that month were 68.8% and 69.4%.

How does that compare with a year earlier?

In July 2025, 84.8% of 1,382 departures left on time and 1.0% were cancelled, against 87.2% and 0.5% in July 2026.

Provenance

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