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Flight Reliability

B6 513 · JetBlue Airways

ISP → Fort Lauderdale (ISP–FLL)

68
Usually Fine
WanderNerd Reliability Score
72%
Arrive within 15 minutes
17 min
Average arrival delay
1.5%
Cancelled
1 min early
Median arrival delay

Based on 334 historical flights. Data through May 2026.

What the data says

The late departure is the smart one here.

B6 513 departing between 9 PM–12 AM arrived on time 94% of the time, versus 50% between 3–6 PM.

Mondays have been rough.

B6 513 arrived on time 90% of the time on Wednesdays and just 63% on Mondays. That gap is worth planning around.

A bit ahead of the ISP–FLL route.

B6 513 arrived on time 72% of the time, versus 69% across the ISP–FLL route.

Trending in the right direction.

B6 513 arrived on time 80% of the time over the last three months in the data, compared with 65% in the three months before that.

The breakdown

On-time by weekday
  • Mon63%(48 flights)
  • Tue67%(43 flights)
  • Wed90%(51 flights)
  • Thu66%(41 flights)
  • Fri77%(51 flights)
  • Sat71%(49 flights)
  • Sun66%(44 flights)
On-time by departure window
  • 6–9 AM71%(31 flights)
  • 9 AM–12 PM74%(90 flights)
  • 12–3 PM76%(123 flights)
  • 3–6 PM50%(16 flights)
  • 6–9 PM58%(50 flights)
  • 9 PM–12 AM94%(17 flights)
On-time trend by month
81%
May

Jun 73% → May 81% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202573%22
July 202570%30
August 202577%31
September 202571%17
October 202586%21
November 202553%30
December 202565%31
January 202661%28
February 202670%27
March 202669%29
April 202690%30
May 202681%31
Departures on time
77%
Diverted
0.6%
Flights flown
327
Months covered
12

Same route, other flights

Keep nerding

Based on 334 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.