Long Island MacArthur in February 2025

79.0%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 February 2025, reporting carriers scheduled 434 domestic departures from Long Island MacArthur (ISP). 79.0% left less than 15 minutes late and 77.0% reached their destination on time; 0.9% were cancelled.

Nationally that month, 79.2% of flights departed on time and 77.9% arrived on time, so ISP departures were level with the national departure figure.

A year earlier, in February 2024, the airport had 456 departures with 84.6% leaving on time: a change of −5.6 points, with flights down 5%.

Flights arriving at ISP that month were on time 80.4% of the time (434 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 53%, national aviation system 30% and air carrier 15%.

On time 77.0%
Arrived 15+ minutes late 22.1%
Cancelled 0.9%
Diverted 0.0%

Every scheduled departure from ISP in February 2025, judged by arrival at the destination.

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

Measure	Feb 2025	Feb 2024	ISP, 12 months to Jul 2026	All reported flights, Feb 2025
Departed on time	79.0%	84.6%	73.7%	79.2%
Arrived on time	77.0%	84.0%	73.6%	77.9%
Cancelled	0.9%	1.1%	2.1%	1.5%
Average departure delay (late minutes only)	18.7 min	14.3 min	18.8 min	15.3 min
Scheduled departures a day	15	15	14	16,830
Scheduled departures	434	456	4,966	504,884

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
WN Southwest Airlines	232	53%	84.1%	-1.6 min	0.4%
F9 Frontier Airlines	136	31%	66.9%	26.1 min	2.2%
B6 JetBlue Airways	66	15%	72.7%	0.0 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
ISP–MCO	Islip to Orlando	125	79.2%	3.0 min	0.8%
ISP–PBI	Islip to West Palm Beach/Palm Beach	104	71.2%	16.3 min	0.0%
ISP–BWI	Islip to Baltimore	82	95.1%	-12.8 min	0.0%
ISP–TPA	Islip to Tampa	51	64.7%	12.5 min	3.9%
ISP–FLL	Islip to Fort Lauderdale	35	68.6%	29.7 min	0.0%
ISP–MIA	Islip to Miami	28	75.0%	3.0 min	0.0%
ISP–RSW	Islip to Fort Myers	9	55.6%	44.5 min	11.1%

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), February 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Feb 2025	Minutes
Air carrier	15.2%	33.9%	1,246
Late-arriving aircraft	53.2%	36.9%	4,353
National Aviation System	29.8%	22.5%	2,434
Extreme weather	1.7%	6.6%	143
Security	0.0%	0.1%	0

8,176 delay minutes on 96 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 ISP on time in February 2025?

79.0% of 434 scheduled domestic departures left less than 15 minutes late, and 77.0% reached their destination on time. The national figures that month were 79.2% and 77.9%.

How does that compare with a year earlier?

In February 2024, 84.6% of 456 departures left on time and 1.1% were cancelled, against 79.0% and 0.9% in February 2025.

Provenance

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