Hilo International in April 2026

81.0%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 April 2026, reporting carriers scheduled 578 domestic departures from Hilo International (ITO). 81.0% left less than 15 minutes late and 78.9% reached their destination on time; 0.5% were cancelled.

Nationally that month, 79.1% of flights departed on time and 78.9% arrived on time, so ITO departures were 1.9 points above the national departure figure.

A year earlier, in April 2025, the airport had 569 departures with 89.8% leaving on time: a change of −8.8 points, with flights up 2%.

Flights arriving at ITO that month were on time 81.7% of the time (578 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 64%, air carrier 30% and national aviation system 5%.

On time 78.9%
Arrived 15+ minutes late 20.6%
Cancelled 0.5%
Diverted 0.0%

Every scheduled departure from ITO in April 2026, judged by arrival at the destination.

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

Measure	Apr 2026	Apr 2025	ITO, 12 months to Jul 2026	All reported flights, Apr 2026
Departed on time	81.0%	89.8%	84.5%	79.1%
Arrived on time	78.9%	87.9%	82.8%	78.9%
Cancelled	0.5%	1.2%	1.0%	0.9%
Average departure delay (late minutes only)	8.4 min	4.2 min	7.5 min	14.5 min
Scheduled departures a day	19	19	18	19,931
Scheduled departures	578	569	6,609	597,919

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
AS Alaska Airlines	420	73%	72.9%	10.8 min	0.7%
WN Southwest Airlines	158	27%	94.9%	-7.4 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
ITO–HNL	Hilo to Honolulu	546	78.6%	5.8 min	0.5%
ITO–OGG	Hilo to Kahului	31	83.9%	6.1 min	0.0%
ITO–LAS	Hilo to Las Vegas	1	100.0%	14.0 min	0.0%

By scheduled departure hour

On-time share:under 62%6270768288% and over

Share of departures that left less than 15 minutes late, by scheduled hour (local time), April 2026.

Delay causes

BTS cause category	Share of delay minutes	National, Apr 2026	Minutes
Air carrier	30.2%	33.5%	1,398
Late-arriving aircraft	63.9%	40.4%	2,958
National Aviation System	5.3%	21.0%	246
Extreme weather	0.6%	5.0%	27
Security	0.0%	0.1%	0

4,629 delay minutes on 119 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 April 2026?

81.0% of 578 scheduled domestic departures left less than 15 minutes late, and 78.9% reached their destination on time. The national figures that month were 79.1% and 78.9%.

How does that compare with a year earlier?

In April 2025, 89.8% of 569 departures left on time and 1.2% were cancelled, against 81.0% and 0.5% in April 2026.

Provenance

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