Daniel K Inouye International in May 2025

89.8%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 May 2025, reporting carriers scheduled 4,931 domestic departures from Daniel K Inouye International (HNL). 89.8% left less than 15 minutes late and 88.3% reached their destination on time; 0.4% were cancelled.

Nationally that month, 76.7% of flights departed on time and 75.4% arrived on time, so HNL departures were 13.1 points above the national departure figure.

A year earlier, in May 2024, the airport had 5,232 departures with 82.8% leaving on time: a change of +7.0 points, with flights down 6%.

Flights arriving at HNL that month were on time 88.6% of the time (4,935 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 67%, late-arriving aircraft 26% and national aviation system 6%.

On time 88.3%
Arrived 15+ minutes late 11.3%
Cancelled 0.4%
Diverted 0.0%

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

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

Measure	May 2025	May 2024	HNL, 12 months to Jul 2026	All reported flights, May 2025
Departed on time	89.8%	82.8%	83.5%	76.7%
Arrived on time	88.3%	80.8%	82.0%	75.4%
Cancelled	0.4%	1.7%	0.9%	1.0%
Average departure delay (late minutes only)	6.4 min	10.1 min	10.4 min	17.5 min
Scheduled departures a day	164	174	159	20,188
Scheduled departures	4,931	5,232	58,088	605,648

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
HA Hawaiian Airlines	2,813	57%	87.7%	2.9 min	0.2%
WN Southwest Airlines	1,042	21%	92.0%	-5.1 min	0.1%
UA United Airlines	421	9%	90.0%	-2.1 min	1.0%
DL Delta Air Lines	310	6%	88.1%	-7.3 min	1.3%
AA American Airlines	190	4%	91.6%	-1.1 min	0.0%
AS Alaska Airlines	155	3%	66.5%	4.2 min	1.9%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
HNL–OGG	Honolulu to Kahului	882	94.1%	-2.4 min	0.2%
HNL–LIH	Honolulu to Lihue	698	93.6%	-0.1 min	0.4%
HNL–KOA	Honolulu to Kona	650	94.2%	-1.3 min	0.2%
HNL–ITO	Honolulu to Hilo	541	93.2%	-0.6 min	0.2%
HNL–LAX	Honolulu to Los Angeles	454	79.5%	5.1 min	0.4%
HNL–SEA	Honolulu to Seattle	249	79.1%	0.8 min	1.6%
HNL–SFO	Honolulu to San Francisco	205	84.4%	6.1 min	0.5%
HNL–LAS	Honolulu to Las Vegas	186	83.9%	2.1 min	0.0%
HNL–PHX	Honolulu to Phoenix	124	87.9%	-3.3 min	0.0%
HNL–SAN	Honolulu to San Diego	124	75.8%	6.3 min	0.0%
HNL–DEN	Honolulu to Denver	62	83.9%	0.6 min	0.0%
HNL–JFK	Honolulu to New York	62	75.8%	-2.7 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), May 2025.

Delay causes

BTS cause category	Share of delay minutes	National, May 2025	Minutes
Air carrier	66.8%	29.3%	17,818
Late-arriving aircraft	26.1%	37.8%	6,947
National Aviation System	6.4%	25.9%	1,716
Extreme weather	0.5%	6.9%	124
Security	0.2%	0.1%	57

26,662 delay minutes on 557 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 May 2025?

89.8% of 4,931 scheduled domestic departures left less than 15 minutes late, and 88.3% reached their destination on time. The national figures that month were 76.7% and 75.4%.

How does that compare with a year earlier?

In May 2024, 82.8% of 5,232 departures left on time and 1.7% were cancelled, against 89.8% and 0.4% in May 2025.

Provenance

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