68% of FLL → SJU flights arrived on time in June-August 2026 (615 flights). The most reliable was B6 753, on time 90% of the time on this route. Morning flights did best (80%), evening flights worst (61%). Fort Lauderdale (FLL): no delay reported. SJU (SJU): no delay reported.
Best time of day to fly FLL → SJU
| Morning (before noon) | |
| Afternoon (noon-5 PM) | |
| Evening (after 5 PM) |
Flights FLL → SJU, most reliable first
| Flight | Departs | On time on this route | Cancelled |
|---|---|---|---|
| B6 753 JetBlue | 6:40 AM | 3.3% | |
| B6 553 JetBlue | 5:45 PM | 1.1% | |
| B6 1553 JetBlue | 10:10 AM | 2.2% | |
| B6 1453 JetBlue | 12:10 PM | 3.3% | |
| B6 153 JetBlue | 4:09 PM | 0% | |
| F9 3018 Frontier | 1:17 PM | 2.4% | |
| B6 2153 JetBlue | 8:37 PM | 1.1% |
FLL conditions · SJU → FLL · Cancellations
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From BTS on-time data, June-August 2026; flights with 20+ trips on this route. On-time rates cover each flight number's whole day, which can include other legs. Departure times are local.