Flight Reliability
B6 991 · JetBlue Airways
Fort Lauderdale → San Juan (FLL–SJU)
100
Nerd Approved
WanderNerd Reliability Score
- 94%
- Arrive within 15 minutes
- 5 min early
- Average arrival delay
- 0%
- Cancelled
- 11 min early
- Median arrival delay
Based on 129 historical flights. Data through May 2026.
What the data says
Saturdays have been rough.
B6 991 arrived on time 100% of the time on Tuesdays and just 82% on Saturdays. That gap is worth planning around.
Well ahead of the FLL–SJU route.
B6 991 arrived on time 94% of the time, versus 69% across the FLL–SJU route.
Well ahead of the JetBlue Airways network.
B6 991 arrived on time 94% of the time, versus 73% across the JetBlue Airways network.
It basically never cancels.
Out of 129 scheduled flights, only 0.0% were cancelled.
The breakdown
- Mon95%(21 flights)
- Tue100%(14 flights)
- Wed93%(14 flights)
- Thu95%(21 flights)
- Fri95%(21 flights)
- Sat82%(17 flights)
- Sun95%(21 flights)
96%
Oct
Jun 93% → Oct 96% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 93% | 30 |
| July 2025 | 94% | 31 |
| August 2025 | 92% | 25 |
| September 2025 | 94% | 18 |
| October 2025 | 96% | 25 |
- Departures on time
- 94%
- Diverted
- 0%
- Flights flown
- 129
- Months covered
- 5
Same route, other flights
Keep nerding
Based on 129 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.