Flight OddsWN4437 BNA → DTW
Southwest Airlines · Nashville, TN to Detroit, MI · 47 flights observed, 2026-01-06 to 2026-03-04 · 456 mi
WN4437 covers more than one route in the data window — the stats below are for BNA → DTW, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
80%
Median delay
0 min
90th percentile
+24 min
Cancellation rate
2%
How often is WN4437 on time?
Across 47 flights on BNA → DTW from 2026-01-06 to 2026-03-04, WN4437 arrived within 15 minutes of schedule 80% of the time. The median arrival delay was 0 min, and the worst 10% of flights arrived +24 min or later. 2% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 37 | 80% |
| 16-30 min | 7 | 15% |
| 31-60 min | 1 | 2% |
| 61-120 min | 1 | 2% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-01 | 25 | 84% | +4 min |
| 2026-02 | 18 | 78% | +3 min |
| 2026-03 | 3 | 67% | +4 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 7 | 86% |
| Tue | 9 | 89% |
| Wed | 9 | 67% |
| Thu | 6 | 100% |
| Fri | 5 | 100% |
| Sat | 5 | 60% |
| Sun | 5 | 60% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…