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U.S. Department of Transportation U.S. Department of Transportation Icon United States Department of Transportation United States Department of Transportation

BTS> TranStats
(The month selection does not apply to on-time data.)Show all airports (by state)
Islip, NY: Long Island MacArthur (ISP)Scheduled Services except Freight/MailBTS Data as of 12/13/2025
Summary Data (U.S. Flights Only)Carrier Shares for October 2024 - September 2025
Passengers*2024**2025**%ChgRank***
Arrival687k762k10.90%115
Departure686k756k10.14%116
Scheduled Flights
Departures5,4166,40018.17%159
Freight/Mail (lb.) (Scheduled and Non-Scheduled)
Total417k376k-9.63%346
Carriers
Scheduled36100.00%
* Scheduled enplaned revenue passengers.
** 12 months ending September of each year.
*** Among 762 U.S. airports, 12 months ending September 2025
CarrierPassengersShare
Southwest 68244.99%
Frontier 38625.43%
JetBlue24716.27%
Breeze 17711.64%
TEM Enterprises 22.581.49%
Other2.820.19%
Based on enplaned passengers(000) both arriving and departing.
Total Passengers (U.S. Flights, in thousands)Top 10 Destination Airports (U.S. Only, Passengers (000))
*  Before October 2002, only carriers operating aircraft with more than 60 seats or 18,000 pounds in payload reported traffic data.
** 2025 represents data for October 2024 - September 2025.
Source: T-100 Domestic Market (US Carriers).
ISP vs. National Departure Delays (Major U.S. Carriers)ISP On-Time Performance Summary (Major U.S. Carriers Only)
A flight is considered delayed when it arrived or departed 15 or more minutes than the schedule. Delayed minutes are calculated from delayed flights only.
Domestic Flights, 2020-2025
% On Time202020212022202320242025*Rank**
Departure83%76%70%75%75%77%N/A
Arrival80%74%66%73%75%80%N/A
Avg Delay (min.)
Departure61.7965.8566.8771.7073.5569.96N/A
Arrival49.2456.5864.0957.7463.8959.93N/A
% Cancelled
Total10.26%2.32%4.63%1.60%1.93%1.24%N/A
Number of Flights
Total332243584708469847771050N/A
Number of Reporting Carriers
Total222233
* October 2024 - September 2025 .
** Ranked only for major U.S. airports, October 2024 - September 2025.