Long Island MacArthur in February 2026

66.7%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 2026, reporting carriers scheduled 433 domestic departures from Long Island MacArthur (ISP). 66.7% left less than 15 minutes late and 67.7% reached their destination on time; 6.9% were cancelled.

Nationally that month, 78.1% of flights departed on time and 78.3% arrived on time, so ISP departures were 11.4 points below the national departure figure.

A year earlier, in February 2025, the airport had 434 departures with 79.0% leaving on time: a change of −12.3 points, with flights down 0%.

Flights arriving at ISP that month were on time 65.5% of the time (435 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 36%, air carrier 36% and national aviation system 22%.

On time 67.7%
Arrived 15+ minutes late 25.2%
Cancelled 6.9%
Diverted 0.2%

Every scheduled departure from ISP in February 2026, judged by arrival at the destination.

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

Measure	Feb 2026	Feb 2025	ISP, 12 months to Jul 2026	All reported flights, Feb 2026
Departed on time	66.7%	79.0%	73.7%	78.1%
Arrived on time	67.7%	77.0%	73.6%	78.3%
Cancelled	6.9%	0.9%	2.1%	2.3%
Average departure delay (late minutes only)	22.1 min	18.7 min	18.8 min	15.0 min
Scheduled departures a day	14	15	14	17,168
Scheduled departures	433	434	4,966	515,037

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
WN Southwest Airlines	214	49%	72.0%	3.6 min	6.5%
B6 JetBlue Airways	153	35%	60.8%	27.0 min	7.2%
F9 Frontier Airlines	66	15%	69.7%	4.7 min	7.6%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
ISP–PBI	Islip to West Palm Beach/Palm Beach	133	66.2%	11.5 min	8.3%
ISP–MCO	Islip to Orlando	110	68.2%	10.5 min	7.3%
ISP–BWI	Islip to Baltimore	84	79.8%	-2.8 min	6.0%
ISP–TPA	Islip to Tampa	50	58.0%	14.8 min	6.0%
ISP–FLL	Islip to Fort Lauderdale	31	67.7%	46.7 min	3.2%
ISP–RSW	Islip to Fort Myers	25	52.0%	20.6 min	8.0%

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), February 2026.

Delay causes

BTS cause category	Share of delay minutes	National, Feb 2026	Minutes
Air carrier	35.7%	38.2%	2,951
Late-arriving aircraft	36.3%	37.2%	2,999
National Aviation System	22.1%	18.5%	1,828
Extreme weather	5.9%	6.0%	489
Security	0.0%	0.2%	0

8,267 delay minutes on 109 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 2026?

66.7% of 433 scheduled domestic departures left less than 15 minutes late, and 67.7% reached their destination on time. The national figures that month were 78.1% and 78.3%.

How does that compare with a year earlier?

In February 2025, 79.0% of 434 departures left on time and 0.9% were cancelled, against 66.7% and 6.9% in February 2026.

Provenance

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