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Flight Reliability

B6 1553 · JetBlue Airways

Fort Lauderdale → San Juan (FLL–SJU)

62
A Little Dicey
WanderNerd Reliability Score
62%
Arrive within 15 minutes
19 min
Average arrival delay
0.9%
Cancelled
7 min
Median arrival delay

Based on 347 historical flights. Data through May 2026.

What the data says

12–3 PM has a slight edge.

Departures between 12–3 PM arrived on time 65% of the time, against 61% between 9 AM–12 PM.

Sunday scaries are real for this one.

B6 1553 arrived on time 77% of the time on Wednesdays and just 49% on Sundays. That gap is worth planning around.

Lagging the FLL–SJU route.

B6 1553 arrived on time 62% of the time, versus 69% across the FLL–SJU route.

Lagging the JetBlue Airways network.

B6 1553 arrived on time 62% of the time, versus 73% across the JetBlue Airways network.

The breakdown

On-time by weekday
  • Mon49%(49 flights)
  • Tue76%(50 flights)
  • Wed77%(48 flights)
  • Thu65%(49 flights)
  • Fri67%(49 flights)
  • Sat50%(48 flights)
  • Sun49%(51 flights)
On-time by departure window
  • 9 AM–12 PM61%(237 flights)
  • 12–3 PM65%(107 flights)
On-time trend by month
77%
May

Jun 83% → May 77% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202583%30
July 202574%31
August 202563%30
September 202580%30
October 202574%31
November 202558%26
December 202536%31
January 202643%30
February 202643%28
March 202655%29
April 202647%17
May 202677%31
Departures on time
62%
Diverted
0%
Flights flown
344
Months covered
12

Same route, other flights

Keep nerding

Based on 347 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.