Flight OddsNK1635 ORD → SJU
Spirit Airlines · Chicago, IL to San Juan, PR · 34 flights observed, 2025-07-09 to 2025-08-11 · 2,072 mi
NK1635 covers more than one route in the data window — the stats below are for ORD → SJU, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
48%
Median delay
+16 min
90th percentile
+123 min
Cancellation rate
3%
How often is NK1635 on time?
Across 34 flights on ORD → SJU from 2025-07-09 to 2025-08-11, NK1635 arrived within 15 minutes of schedule 48% of the time. The median arrival delay was +16 min, and the worst 10% of flights arrived +123 min or later. 3% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 16 | 48% |
| 16-30 min | 4 | 12% |
| 31-60 min | 7 | 21% |
| 61-120 min | 2 | 6% |
| 2+ hrs | 4 | 12% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 23 | 43% | +37 min |
| 2025-08 | 10 | 60% | +27 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 5 | 20% |
| Tue | 4 | 100% |
| Wed | 5 | 60% |
| Thu | 5 | 20% |
| Fri | 5 | 40% |
| Sat | 5 | 80% |
| Sun | 4 | 25% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…