Flight OddsNK1521 PHX → DTW
Spirit Airlines · Phoenix, AZ to Detroit, MI · 29 flights observed, 2025-12-04 to 2026-01-07 · 1,671 mi
NK1521 covers more than one route in the data window — the stats below are for PHX → DTW, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
74%
Median delay
-14 min
90th percentile
+139 min
Cancellation rate
7%
How often is NK1521 on time?
Across 29 flights on PHX → DTW from 2025-12-04 to 2026-01-07, NK1521 arrived within 15 minutes of schedule 74% of the time. The median arrival delay was -14 min, and the worst 10% of flights arrived +139 min or later. 7% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 20 | 74% |
| 16-30 min | 2 | 7% |
| 31-60 min | 0 | 0% |
| 61-120 min | 2 | 7% |
| 2+ hrs | 3 | 11% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-12 | 21 | 71% | +29 min |
| 2026-01 | 6 | 83% | -11 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 5 | 60% |
| Tue | 3 | 67% |
| Wed | 2 | 50% |
| Thu | 5 | 100% |
| Fri | 4 | 75% |
| Sat | 3 | 67% |
| Sun | 5 | 80% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…