Countries › United States › Islip › ISP Islip Long Island MacArthur (ISP) ISP / KISP
130,908
Long Island MacArthur Airport handled 130,908 passengers in May 2026, down 7.9% on a year earlier, according to US Bureau of Transportation Statistics — T-100 Air Carrier Statistics .
Full count · domestic + international Flight timing & delays ↓
Passengers over time Showing 53 months. Full series runs 1990–2026 (437 periods).
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From → To
Domestic / International May 2026 Domestic 100.0% 130,900 International 0.0% 8 Against 2019 +4.9% same month, before the pandemic
International share 0% of passengers in May 2026
Series depth 36 years from 1990
The most recent periods Open any period for the full breakdown. As published Newest first Oldest first Highest first Lowest first 24 of 24
Period Passengers Year on year Source May 2026 130,908 −7.9% US Bureau of Transportation Statistics Open this month → April 2026 144,222 −4.2% US Bureau of Transportation Statistics Open this month → March 2026 134,833 +1.4% US Bureau of Transportation Statistics Open this month → February 2026 121,364 +1.5% US Bureau of Transportation Statistics Open this month → January 2026 123,780 +6.2% US Bureau of Transportation Statistics Open this month → December 2025 150,145 +8.3% US Bureau of Transportation Statistics Open this month → November 2025 128,533 +16.4% US Bureau of Transportation Statistics Open this month → October 2025 123,236 +41.3% US Bureau of Transportation Statistics Open this month → September 2025 112,782 +35.3% US Bureau of Transportation Statistics Open this month → August 2025 144,923 +14.7% US Bureau of Transportation Statistics Open this month → July 2025 146,526 +14.6% US Bureau of Transportation Statistics Open this month → June 2025 126,753 +12.2% US Bureau of Transportation Statistics Open this month → May 2025 142,162 +14.7% US Bureau of Transportation Statistics Open this month → April 2025 150,623 +17.9% US Bureau of Transportation Statistics Open this month → March 2025 132,974 +8.4% US Bureau of Transportation Statistics Open this month → February 2025 119,593 +15.4% US Bureau of Transportation Statistics Open this month → January 2025 116,558 +7.8% US Bureau of Transportation Statistics Open this month → December 2024 138,625 +5.4% US Bureau of Transportation Statistics Open this month → November 2024 110,377 −5.8% US Bureau of Transportation Statistics Open this month → October 2024 87,245 −12.6% US Bureau of Transportation Statistics Open this month → September 2024 83,371 −6.4% US Bureau of Transportation Statistics Open this month → August 2024 126,362 +0.8% US Bureau of Transportation Statistics July 2024 127,897 −0.5% US Bureau of Transportation Statistics June 2024 112,991 +9.8% US Bureau of Transportation Statistics
Also tracked here: aircraft movements (through May 2026), tonnes of cargo (through May 2026).
Flight timing & delays Historical departures, grouped by the scheduled local time at the departure airport. These are recorded outcomes, not a forecast for your flight.
US domestic sectors recorded by BTS Source: BTS · US Department of Transportation · 2024-09-01 → 2026-06-30
Lowest average delay 11:00–12:00 4.0min · 769 recorded · 761 measured
Gap to highest-delay hour 31.1min 11:00 ↔ 20:00
Recorded flights 9,176 Long Island MacArthur Airport
Departure hour Day of week Month of year
Departure hour On-time departures 100.0 50.0 0.0
00:00 · No observations · 0 recorded · 0 measured · Source: BTS · US Department of Transportation 01:00 · No observations · 0 recorded · 0 measured · Source: BTS · US Department of Transportation 02:00 · No observations · 0 recorded · 0 measured · Source: BTS · US Department of Transportation 03:00 · No observations · 0 recorded · 0 measured · Source: BTS · US Department of Transportation 04:00 · No observations · 0 recorded · 0 measured · Source: BTS · US Department of Transportation 05:00 · 94.4% · 513 recorded · 504 measured · Source: BTS · US Department of Transportation 06:00 · 93.9% · 1,191 recorded · 1,172 measured · Source: BTS · US Department of Transportation 07:00 · 91.9% · 341 recorded · 335 measured · Source: BTS · US Department of Transportation 08:00 · 84.1% · 281 recorded · 277 measured · Source: BTS · US Department of Transportation 09:00 · 91.0% · 322 recorded · 311 measured · Source: BTS · US Department of Transportation 10:00 · 86.1% · 546 recorded · 538 measured · Source: BTS · US Department of Transportation 11:00 · 85.3% · 769 recorded · 761 measured · Source: BTS · US Department of Transportation 12:00 · 75.5% · 902 recorded · 893 measured · Source: BTS · US Department of Transportation 13:00 · 73.8% · 623 recorded · 618 measured · Source: BTS · US Department of Transportation 14:00 · 62.9% · 551 recorded · 542 measured · Source: BTS · US Department of Transportation 15:00 · 60.4% · 678 recorded · 666 measured · Source: BTS · US Department of Transportation 16:00 · 72.5% · 764 recorded · 756 measured · Source: BTS · US Department of Transportation 17:00 · 65.7% · 606 recorded · 594 measured · Source: BTS · US Department of Transportation 18:00 · 63.7% · 404 recorded · 397 measured · Source: BTS · US Department of Transportation 19:00 · 60.2% · 261 recorded · 256 measured · Source: BTS · US Department of Transportation 20:00 · 59.8% · 252 recorded · 244 measured · Source: BTS · US Department of Transportation 21:00 · Fewer than 200 measured departures · 167 recorded · 164 measured · Source: BTS · US Department of Transportation 22:00 · Fewer than 200 measured departures · 5 recorded · 5 measured · Source: BTS · US Department of Transportation 23:00 · No observations · 0 recorded · 0 measured · Source: BTS · US Department of Transportation 00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
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Average departure delay 35.1 17.5 0.0
00:00 · No observations · 0 recorded · 0 measured · Source: BTS · US Department of Transportation 01:00 · No observations · 0 recorded · 0 measured · Source: BTS · US Department of Transportation 02:00 · No observations · 0 recorded · 0 measured · Source: BTS · US Department of Transportation 03:00 · No observations · 0 recorded · 0 measured · Source: BTS · US Department of Transportation 04:00 · No observations · 0 recorded · 0 measured · Source: BTS · US Department of Transportation 05:00 · 4.8 min · 513 recorded · 504 measured · Source: BTS · US Department of Transportation 06:00 · 4.9 min · 1,191 recorded · 1,172 measured · Source: BTS · US Department of Transportation 07:00 · 4.7 min · 341 recorded · 335 measured · Source: BTS · US Department of Transportation 08:00 · 9.7 min · 281 recorded · 277 measured · Source: BTS · US Department of Transportation 09:00 · 5.5 min · 322 recorded · 311 measured · Source: BTS · US Department of Transportation 10:00 · 7.8 min · 546 recorded · 538 measured · Source: BTS · US Department of Transportation 11:00 · 4.0 min · 769 recorded · 761 measured · Source: BTS · US Department of Transportation 12:00 · 12.5 min · 902 recorded · 893 measured · Source: BTS · US Department of Transportation 13:00 · 19.3 min · 623 recorded · 618 measured · Source: BTS · US Department of Transportation 14:00 · 22.0 min · 551 recorded · 542 measured · Source: BTS · US Department of Transportation 15:00 · 28.0 min · 678 recorded · 666 measured · Source: BTS · US Department of Transportation 16:00 · 17.2 min · 764 recorded · 756 measured · Source: BTS · US Department of Transportation 17:00 · 22.5 min · 606 recorded · 594 measured · Source: BTS · US Department of Transportation 18:00 · 26.3 min · 404 recorded · 397 measured · Source: BTS · US Department of Transportation 19:00 · 30.2 min · 261 recorded · 256 measured · Source: BTS · US Department of Transportation 20:00 · 35.1 min · 252 recorded · 244 measured · Source: BTS · US Department of Transportation 21:00 · Fewer than 200 measured departures · 167 recorded · 164 measured · Source: BTS · US Department of Transportation 22:00 · Fewer than 200 measured departures · 5 recorded · 5 measured · Source: BTS · US Department of Transportation 23:00 · No observations · 0 recorded · 0 measured · Source: BTS · US Department of Transportation 00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
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Recorded flights 1,191 596 0
00:00 · No observations · 0 recorded · 0 measured · Source: BTS · US Department of Transportation 01:00 · No observations · 0 recorded · 0 measured · Source: BTS · US Department of Transportation 02:00 · No observations · 0 recorded · 0 measured · Source: BTS · US Department of Transportation 03:00 · No observations · 0 recorded · 0 measured · Source: BTS · US Department of Transportation 04:00 · No observations · 0 recorded · 0 measured · Source: BTS · US Department of Transportation 05:00 · 513 · 513 recorded · 504 measured · Source: BTS · US Department of Transportation 06:00 · 1,191 · 1,191 recorded · 1,172 measured · Source: BTS · US Department of Transportation 07:00 · 341 · 341 recorded · 335 measured · Source: BTS · US Department of Transportation 08:00 · 281 · 281 recorded · 277 measured · Source: BTS · US Department of Transportation 09:00 · 322 · 322 recorded · 311 measured · Source: BTS · US Department of Transportation 10:00 · 546 · 546 recorded · 538 measured · Source: BTS · US Department of Transportation 11:00 · 769 · 769 recorded · 761 measured · Source: BTS · US Department of Transportation 12:00 · 902 · 902 recorded · 893 measured · Source: BTS · US Department of Transportation 13:00 · 623 · 623 recorded · 618 measured · Source: BTS · US Department of Transportation 14:00 · 551 · 551 recorded · 542 measured · Source: BTS · US Department of Transportation 15:00 · 678 · 678 recorded · 666 measured · Source: BTS · US Department of Transportation 16:00 · 764 · 764 recorded · 756 measured · Source: BTS · US Department of Transportation 17:00 · 606 · 606 recorded · 594 measured · Source: BTS · US Department of Transportation 18:00 · 404 · 404 recorded · 397 measured · Source: BTS · US Department of Transportation 19:00 · 261 · 261 recorded · 256 measured · Source: BTS · US Department of Transportation 20:00 · 252 · 252 recorded · 244 measured · Source: BTS · US Department of Transportation 21:00 · 167 · 167 recorded · 164 measured · Source: BTS · US Department of Transportation 22:00 · 5 · 5 recorded · 5 measured · Source: BTS · US Department of Transportation 23:00 · No observations · 0 recorded · 0 measured · Source: BTS · US Department of Transportation 00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
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View the figures Departure hour On-time departures Average departure delay With departure time Recorded flights 00:00 No observations — — — 01:00 No observations — — — 02:00 No observations — — — 03:00 No observations — — — 04:00 No observations — — — 05:00 94.4% 4.8 min 504 513 06:00 93.9% 4.9 min 1,172 1,191 07:00 91.9% 4.7 min 335 341 08:00 84.1% 9.7 min 277 281 09:00 91.0% 5.5 min 311 322 10:00 86.1% 7.8 min 538 546 11:00 85.3% 4.0 min 761 769 12:00 75.5% 12.5 min 893 902 13:00 73.8% 19.3 min 618 623 14:00 62.9% 22.0 min 542 551 15:00 60.4% 28.0 min 666 678 16:00 72.5% 17.2 min 756 764 17:00 65.7% 22.5 min 594 606 18:00 63.7% 26.3 min 397 404 19:00 60.2% 30.2 min 256 261 20:00 59.8% 35.1 min 244 252 21:00 Fewer than 200 measured departures — 164 167 22:00 Fewer than 200 measured departures — 5 5 23:00 No observations — — —
Day of week On-time departures 100.0 50.0 0.0
Monday · 75.3% · 1,365 recorded · 1,317 measured · Source: BTS · US Department of Transportation Tuesday · 81.3% · 1,178 recorded · 1,168 measured · Source: BTS · US Department of Transportation Wednesday · 80.1% · 1,195 recorded · 1,188 measured · Source: BTS · US Department of Transportation Thursday · 77.2% · 1,311 recorded · 1,293 measured · Source: BTS · US Department of Transportation Friday · 77.5% · 1,377 recorded · 1,370 measured · Source: BTS · US Department of Transportation Saturday · 77.4% · 1,382 recorded · 1,373 measured · Source: BTS · US Department of Transportation Sunday · 74.2% · 1,368 recorded · 1,324 measured · Source: BTS · US Department of Transportation Mon Tue Wed Thu Fri Sat Sun
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Average departure delay 17.9 9.0 0.0
Monday · 17.9 min · 1,365 recorded · 1,317 measured · Source: BTS · US Department of Transportation Tuesday · 10.6 min · 1,178 recorded · 1,168 measured · Source: BTS · US Department of Transportation Wednesday · 10.5 min · 1,195 recorded · 1,188 measured · Source: BTS · US Department of Transportation Thursday · 14.7 min · 1,311 recorded · 1,293 measured · Source: BTS · US Department of Transportation Friday · 17.1 min · 1,377 recorded · 1,370 measured · Source: BTS · US Department of Transportation Saturday · 12.8 min · 1,382 recorded · 1,373 measured · Source: BTS · US Department of Transportation Sunday · 17.2 min · 1,368 recorded · 1,324 measured · Source: BTS · US Department of Transportation Mon Tue Wed Thu Fri Sat Sun
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Recorded flights 1,382 691 0
Monday · 1,365 · 1,365 recorded · 1,317 measured · Source: BTS · US Department of Transportation Tuesday · 1,178 · 1,178 recorded · 1,168 measured · Source: BTS · US Department of Transportation Wednesday · 1,195 · 1,195 recorded · 1,188 measured · Source: BTS · US Department of Transportation Thursday · 1,311 · 1,311 recorded · 1,293 measured · Source: BTS · US Department of Transportation Friday · 1,377 · 1,377 recorded · 1,370 measured · Source: BTS · US Department of Transportation Saturday · 1,382 · 1,382 recorded · 1,373 measured · Source: BTS · US Department of Transportation Sunday · 1,368 · 1,368 recorded · 1,324 measured · Source: BTS · US Department of Transportation Mon Tue Wed Thu Fri Sat Sun
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View the figures Day of week On-time departures Average departure delay With departure time Recorded flights Monday 75.3% 17.9 min 1,317 1,365 Tuesday 81.3% 10.6 min 1,168 1,178 Wednesday 80.1% 10.5 min 1,188 1,195 Thursday 77.2% 14.7 min 1,293 1,311 Friday 77.5% 17.1 min 1,370 1,377 Saturday 77.4% 12.8 min 1,373 1,382 Sunday 74.2% 17.2 min 1,324 1,368
Month of year Months combine the same calendar month across the years shown; this is a seasonal pattern, not a monthly time series.
On-time departures 100.0 50.0 0.0
Jan · 78.9% · 846 recorded · 823 measured · Source: BTS · US Department of Transportation Feb · 76.6% · 867 recorded · 833 measured · Source: BTS · US Department of Transportation Mar · 73.9% · 895 recorded · 870 measured · Source: BTS · US Department of Transportation Apr · 80.5% · 998 recorded · 993 measured · Source: BTS · US Department of Transportation May · 80.3% · 929 recorded · 920 measured · Source: BTS · US Department of Transportation Jun · 75.4% · 864 recorded · 858 measured · Source: BTS · US Department of Transportation Jul · 68.1% · 463 recorded · 457 measured · Source: BTS · US Department of Transportation Aug · 72.9% · 403 recorded · 402 measured · Source: BTS · US Department of Transportation Sep · 86.7% · 643 recorded · 639 measured · Source: BTS · US Department of Transportation Oct · 82.8% · 634 recorded · 622 measured · Source: BTS · US Department of Transportation Nov · 83.8% · 744 recorded · 740 measured · Source: BTS · US Department of Transportation Dec · 67.1% · 890 recorded · 876 measured · Source: BTS · US Department of Transportation Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
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Average departure delay 27.2 13.6 0.0
Jan · 8.8 min · 846 recorded · 823 measured · Source: BTS · US Department of Transportation Feb · 16.4 min · 867 recorded · 833 measured · Source: BTS · US Department of Transportation Mar · 16.8 min · 895 recorded · 870 measured · Source: BTS · US Department of Transportation Apr · 10.2 min · 998 recorded · 993 measured · Source: BTS · US Department of Transportation May · 12.4 min · 929 recorded · 920 measured · Source: BTS · US Department of Transportation Jun · 19.1 min · 864 recorded · 858 measured · Source: BTS · US Department of Transportation Jul · 27.2 min · 463 recorded · 457 measured · Source: BTS · US Department of Transportation Aug · 20.2 min · 403 recorded · 402 measured · Source: BTS · US Department of Transportation Sep · 5.6 min · 643 recorded · 639 measured · Source: BTS · US Department of Transportation Oct · 8.5 min · 634 recorded · 622 measured · Source: BTS · US Department of Transportation Nov · 8.7 min · 744 recorded · 740 measured · Source: BTS · US Department of Transportation Dec · 25.1 min · 890 recorded · 876 measured · Source: BTS · US Department of Transportation Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
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Recorded flights 998 499 0
Jan · 846 · 846 recorded · 823 measured · Source: BTS · US Department of Transportation Feb · 867 · 867 recorded · 833 measured · Source: BTS · US Department of Transportation Mar · 895 · 895 recorded · 870 measured · Source: BTS · US Department of Transportation Apr · 998 · 998 recorded · 993 measured · Source: BTS · US Department of Transportation May · 929 · 929 recorded · 920 measured · Source: BTS · US Department of Transportation Jun · 864 · 864 recorded · 858 measured · Source: BTS · US Department of Transportation Jul · 463 · 463 recorded · 457 measured · Source: BTS · US Department of Transportation Aug · 403 · 403 recorded · 402 measured · Source: BTS · US Department of Transportation Sep · 643 · 643 recorded · 639 measured · Source: BTS · US Department of Transportation Oct · 634 · 634 recorded · 622 measured · Source: BTS · US Department of Transportation Nov · 744 · 744 recorded · 740 measured · Source: BTS · US Department of Transportation Dec · 890 · 890 recorded · 876 measured · Source: BTS · US Department of Transportation Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
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View the figures Month of year On-time departures Average departure delay With departure time Recorded flights Jan 78.9% 8.8 min 823 846 Feb 76.6% 16.4 min 833 867 Mar 73.9% 16.8 min 870 895 Apr 80.5% 10.2 min 993 998 May 80.3% 12.4 min 920 929 Jun 75.4% 19.1 min 858 864 Jul 68.1% 27.2 min 457 463 Aug 72.9% 20.2 min 402 403 Sep 86.7% 5.6 min 639 643 Oct 82.8% 8.5 min 622 634 Nov 83.8% 8.7 min 740 744 Dec 67.1% 25.1 min 876 890
Delay and on-time rates need at least 200 measured departures per bucket. Smaller samples remain visible in the flight-count chart. An empty slot means no observations, not zero flights.
Recorded outcomes On time 76.2% 6,996 Delayed >15 min 22.2% 2,037 Cancelled 1.6% 143 Missing departure time 0.0% 0 All recorded flights with a known scheduled local time, counted once. Missing actual times are shown separately.
On time means departing no more than 15 minutes after schedule. Cancelled flights and flights missing departure times are excluded from punctuality and average delay.
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