ISP → FLL

B6513

B6513 (JetBlue Airways) flies Islip to Fort Lauderdale. Of 546 departures recorded from October 2024 to July 2026, 77.8% left on time, according to the US BTS.

Recorded departures by month

The most recent periods19 periods
PeriodDepartures 2025Departures 2026Change vs last year
January1831▲ 72.2%
February1628▲ 75.0%
March1830▲ 66.7%
April2930▲ 3.4%
May31310.0%
June2230▲ 36.4%
July31310.0%
August31––
September18––
October21–in progress
November30––
December31––
Year to date (Jan–Jul)165211▲ 27.9%

according to the US BTS · October 2024 → July 2026

On-time departures by month

All legs combined

On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.

The most recent periods19 periods
PeriodOn time 2025On time 2026Change vs last year
January83.3%57.1%▼ 31.4%
February81.3%63.0%▼ 22.5%
March77.8%72.4%▼ 6.9%
April100.0%90.0%▼ 10.0%
May74.2%87.1%▲ 17.4%
June81.8%73.3%▼ 10.4%
July71.0%74.2%▲ 4.5%
August87.1%––
September94.4%––
October90.5%–in progress
November73.3%––
December64.5%––
Year-to-date average (Jan–Jul)81.3%73.9%▼ 9.2%

according to the US BTS · October 2024 → July 2026

Average departure delay by month

All legs combined

according to the US BTS · October 2024 → July 2026

Cancelled departures by month

All legs combined
The most recent periods19 periods
PeriodCancelled 2025Cancelled 2026Change vs last year
January03–
February01–
March01–
April00–
May00–
June00–
July00–
August0––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)05

according to the US BTS · October 2024 → July 2026

This is not a forecast

This is a historical record of departures already flown, not a forecast for your flight.

Cancellation share

  • Not cancelled 99.1% 541
  • Cancelled 0.9% 5

Share of all recorded flights in the period, all legs. · Oct 25, 2024 → Jul 31, 2026

Legs flown under this number

1
RoutesDistance (km)Avg delay On timeDepartures
ISP FLL Long Island MacArthur Airport – Fort Lauderdale Hollywood International Airport 1,762 15.5 min 77.8% 546
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 4 4 75.0% 0
November 2024 18 18 83.3% 0
December 2024 17 17 64.7% 0
January 2025 18 18 83.3% 0
February 2025 16 16 81.3% 0
March 2025 18 18 77.8% 0
April 2025 29 29 100.0% 0
May 2025 31 31 74.2% 0
June 2025 22 22 81.8% 0
July 2025 31 31 71.0% 0
August 2025 31 31 87.1% 0
September 2025 18 18 94.4% 0
October 2025 21 21 90.5% 0
November 2025 30 30 73.3% 0
December 2025 31 31 64.5% 0
January 2026 31 28 57.1% 3
February 2026 28 27 63.0% 1
March 2026 30 29 72.4% 1
April 2026 30 30 90.0% 0
May 2026 31 31 87.1% 0
June 2026 30 30 73.3% 0
July 2026 31 31 74.2% 0

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