Flight OddsWN4577 BNA → BWI
Southwest Airlines · Nashville, TN to Baltimore, MD · 22 flights observed, 2025-11-03 to 2026-01-01 · 587 mi
WN4577 covers more than one route in the data window — the stats below are for BNA → BWI, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
91%
Median delay
-4 min
90th percentile
+10 min
Cancellation rate
0%
How often is WN4577 on time?
Across 22 flights on BNA → BWI from 2025-11-03 to 2026-01-01, WN4577 arrived within 15 minutes of schedule 91% of the time. The median arrival delay was -4 min, and the worst 10% of flights arrived +10 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 | 20 | 91% |
| 16-30 min | 0 | 0% |
| 31-60 min | 1 | 5% |
| 61-120 min | 1 | 5% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-11 | 9 | 100% | -9 min |
| 2025-12 | 12 | 83% | +8 min |
| 2026-01 | 1 | 100% | -8 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 4 | 75% |
| Tue | 6 | 100% |
| Wed | 6 | 100% |
| Thu | 5 | 80% |
| Fri | 1 | 100% |
| Sat | No data | — |
| Sun | No data | — |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…