Daniel K Inouye International in April 2025

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 April 2025, reporting carriers scheduled 4,851 domestic departures from Daniel K Inouye International (HNL). 87.2% left less than 15 minutes late and 84.3% reached their destination on time; 0.7% were cancelled.

Nationally that month, 80.6% of flights departed on time and 79.5% arrived on time, so HNL departures were 6.6 points above the national departure figure.

A year earlier, in April 2024, the airport had 5,104 departures with 86.2% leaving on time: a change of +1.0 points, with flights down 5%.

Flights arriving at HNL that month were on time 85.3% of the time (4,846 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 60%, late-arriving aircraft 31% and national aviation system 8%.

On time 84.3%
Arrived 15+ minutes late 14.9%
Cancelled 0.7%
Diverted 0.1%

Every scheduled departure from HNL in April 2025, judged by arrival at the destination.

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

Measure	Apr 2025	Apr 2024	HNL, 12 months to Jul 2026	All reported flights, Apr 2025
Departed on time	87.2%	86.2%	83.5%	80.6%
Arrived on time	84.3%	85.9%	82.0%	79.5%
Cancelled	0.7%	1.0%	0.9%	0.8%
Average departure delay (late minutes only)	7.3 min	8.7 min	10.4 min	14.1 min
Scheduled departures a day	162	170	159	19,465
Scheduled departures	4,851	5,104	58,088	583,950

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
HA Hawaiian Airlines	2,623	54%	80.2%	6.1 min	1.1%
WN Southwest Airlines	1,062	22%	94.8%	-6.4 min	0.1%
UA United Airlines	401	8%	90.5%	-2.3 min	0.2%
DL Delta Air Lines	343	7%	83.7%	0.8 min	0.3%
AS Alaska Airlines	212	4%	70.3%	6.8 min	0.5%
AA American Airlines	210	4%	86.2%	3.2 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
HNL–OGG	Honolulu to Kahului	855	89.6%	0.4 min	0.8%
HNL–LIH	Honolulu to Lihue	654	86.5%	2.1 min	1.2%
HNL–KOA	Honolulu to Kona	615	88.9%	0.7 min	1.3%
HNL–ITO	Honolulu to Hilo	542	90.0%	-0.1 min	1.3%
HNL–LAX	Honolulu to Los Angeles	417	82.3%	3.8 min	0.2%
HNL–SEA	Honolulu to Seattle	240	74.2%	7.6 min	0.4%
HNL–SFO	Honolulu to San Francisco	180	78.9%	1.4 min	0.0%
HNL–LAS	Honolulu to Las Vegas	173	86.7%	-0.1 min	0.0%
HNL–PHX	Honolulu to Phoenix	128	90.6%	-1.8 min	0.0%
HNL–SAN	Honolulu to San Diego	120	69.2%	8.5 min	0.0%
HNL–SLC	Honolulu to Salt Lake City	73	78.1%	3.5 min	0.0%
HNL–OAK	Honolulu to Oakland	67	76.1%	3.9 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 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Apr 2025	Minutes
Air carrier	59.5%	32.7%	18,882
Late-arriving aircraft	31.0%	39.4%	9,833
National Aviation System	7.6%	22.2%	2,421
Extreme weather	1.6%	5.5%	517
Security	0.3%	0.2%	81

31,734 delay minutes on 722 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 HNL on time in April 2025?

87.2% of 4,851 scheduled domestic departures left less than 15 minutes late, and 84.3% reached their destination on time. The national figures that month were 80.6% and 79.5%.

How does that compare with a year earlier?

In April 2024, 86.2% of 5,104 departures left on time and 1.0% were cancelled, against 87.2% and 0.7% in April 2025.

Provenance

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