Flight OddsWN4557 MDW → BWI
Southwest Airlines · Chicago, IL to Baltimore, MD · 44 flights observed, 2025-11-02 to 2026-01-05 · 611 mi
WN4557 covers more than one route in the data window — the stats below are for MDW → BWI, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
98%
Median delay
-13 min
90th percentile
-1 min
Cancellation rate
7%
How often is WN4557 on time?
Across 44 flights on MDW → BWI from 2025-11-02 to 2026-01-05, WN4557 arrived within 15 minutes of schedule 98% of the time. The median arrival delay was -13 min, and the worst 10% of flights arrived -1 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 | 40 | 98% |
| 16-30 min | 1 | 2% |
| 31-60 min | 0 | 0% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-11 | 21 | 100% | -14 min |
| 2025-12 | 19 | 95% | -9 min |
| 2026-01 | 1 | 100% | -27 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 6 | 100% |
| Tue | 6 | 100% |
| Wed | 8 | 100% |
| Thu | 6 | 100% |
| Fri | 6 | 100% |
| Sat | 2 | 100% |
| Sun | 7 | 86% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…