Flight OddsNK3978 FLL → SJU
Spirit Airlines · Fort Lauderdale, FL to San Juan, PR · 4 flights observed, 2025-12-05 to 2025-12-15 · 1,046 mi
On-time arrival
75%
Median delay
-7 min
90th percentile
+18 min
Cancellation rate
0%
How often is NK3978 on time?
Across 4 flights on FLL → SJU from 2025-12-05 to 2025-12-15, NK3978 arrived within 15 minutes of schedule 75% of the time. The median arrival delay was -7 min, and the worst 10% of flights arrived +18 min or later. 0% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 3 | 75% |
| 16-30 min | 1 | 25% |
| 31-60 min | 0 | 0% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-12 | 4 | 75% | +1 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 2 | 50% |
| Tue | No data | — |
| Wed | No data | — |
| Thu | No data | — |
| Fri | 2 | 100% |
| Sat | No data | — |
| Sun | No data | — |
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…