Flight Reliability
B6 253 · JetBlue Airways
Fort Lauderdale → San Juan (FLL–SJU)
48
Bring Snacks
WanderNerd Reliability Score
- 57%
- Arrive within 15 minutes
- 23 min
- Average arrival delay
- 1.7%
- Cancelled
- 13 min
- Median arrival delay
Based on 121 historical flights. Data through May 2026.
What the data says
The 3–6 PM departure wins.
B6 253 departing between 3–6 PM arrived on time 68% of the time, versus 52% between 12–3 PM.
Saturdays have been rough.
B6 253 arrived on time 88% of the time on Tuesdays and just 27% on Saturdays. That gap is worth planning around.
Lagging the FLL–SJU route.
B6 253 arrived on time 57% of the time, versus 69% across the FLL–SJU route.
Well behind the JetBlue Airways network.
B6 253 arrived on time 57% of the time, versus 73% across the JetBlue Airways network.
The breakdown
- Mon47%(17 flights)
- Tue88%(17 flights)
- Wed83%(18 flights)
- Thu53%(17 flights)
- Fri50%(16 flights)
- Sat27%(15 flights)
- Sun44%(18 flights)
- 12–3 PM52%(81 flights)
- 3–6 PM68%(37 flights)
23%
Apr
Nov 74% → Apr 23% on time
| Month | On-time percentage | Flights |
|---|---|---|
| November 2025 | 74% | 27 |
| December 2025 | 47% | 30 |
| January 2026 | 57% | 30 |
| February 2026 | 73% | 11 |
| April 2026 | 23% | 13 |
- Departures on time
- 59%
- Diverted
- 0.8%
- Flights flown
- 118
- Months covered
- 7
Same route, other flights
Keep nerding
Based on 121 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.