Hilo International in August 2025

94.6%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 2025, reporting carriers scheduled 560 domestic departures from Hilo International (ITO). 94.6% left less than 15 minutes late and 92.9% reached their destination on time; 0.4% were cancelled.

Nationally that month, 76.8% of flights departed on time and 76.3% arrived on time, so ITO departures were 17.8 points above the national departure figure.

A year earlier, in August 2024, the airport had 578 departures with 87.0% leaving on time: a change of +7.6 points, with flights down 3%.

Flights arriving at ITO that month were on time 93.6% of the time (560 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 65%, air carrier 32% and national aviation system 2%.

On time 92.9%
Arrived 15+ minutes late 6.8%
Cancelled 0.4%
Diverted 0.0%

Every scheduled departure from ITO in August 2025, judged by arrival at the destination.

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

Measure	Aug 2025	Aug 2024	ITO, 12 months to Jul 2026	All reported flights, Aug 2025
Departed on time	94.6%	87.0%	84.5%	76.8%
Arrived on time	92.9%	87.7%	82.8%	76.3%
Cancelled	0.4%	4.7%	1.0%	1.1%
Average departure delay (late minutes only)	2.9 min	5.2 min	7.5 min	17.6 min
Scheduled departures a day	19	19	18	20,079
Scheduled departures	560	578	6,609	602,378

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
HA Hawaiian Airlines	401	72%	91.5%	-0.3 min	0.0%
WN Southwest Airlines	159	28%	96.2%	-8.9 min	1.3%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
ITO–HNL	Hilo to Honolulu	534	92.7%	-2.7 min	0.4%
ITO–OGG	Hilo to Kahului	26	96.2%	-3.4 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 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Aug 2025	Minutes
Air carrier	32.4%	33.1%	376
Late-arriving aircraft	65.3%	40.5%	758
National Aviation System	2.3%	19.2%	27
Extreme weather	0.0%	7.0%	0
Security	0.0%	0.1%	0

1,161 delay minutes on 38 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 ITO on time in August 2025?

94.6% of 560 scheduled domestic departures left less than 15 minutes late, and 92.9% reached their destination on time. The national figures that month were 76.8% and 76.3%.

How does that compare with a year earlier?

In August 2024, 87.0% of 578 departures left on time and 4.7% were cancelled, against 94.6% and 0.4% in August 2025.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for August 2025; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for ITO · methodology · corrections.