Flight OddsBOS → BWI Southwest Airlines
Southwest Airlines · Boston, MA to Baltimore, MD · 2,370 flights, 2025-07-01 to 2026-06-30 · aggregated across 124 flight numbers
On-time arrival
78%
Median delay
-6 min
90th percentile
+49 min
Cancellation rate
2%
How on-time is Southwest Airlines from BOS to BWI?
Across every Southwest Airlines flight number on BOS → BWI (2,370 flights, 2025-07-01 to 2026-06-30), 78% arrived within 15 minutes of schedule. Median arrival delay -6 min; the worst 10% ran +49 min or later. 2% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 1,815 | 78% |
| 16-30 min | 158 | 7% |
| 31-60 min | 153 | 7% |
| 61-120 min | 115 | 5% |
| 2+ hrs | 75 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 196 | 69% | +32 min |
| 2025-08 | 192 | 79% | +6 min |
| 2025-09 | 188 | 73% | +17 min |
| 2025-10 | 228 | 68% | +18 min |
| 2025-11 | 198 | 82% | 0 min |
| 2025-12 | 206 | 79% | +4 min |
| 2026-01 | 152 | 90% | -2 min |
| 2026-02 | 141 | 94% | -8 min |
| 2026-03 | 175 | 82% | +2 min |
| 2026-04 | 213 | 80% | +5 min |
| 2026-05 | 228 | 78% | +4 min |
| 2026-06 | 199 | 74% | +11 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 340 | 76% |
| Tue | 329 | 84% |
| Wed | 319 | 85% |
| Thu | 342 | 76% |
| Fri | 343 | 79% |
| Sat | 294 | 81% |
| Sun | 349 | 69% |
WN flight numbers on BOS → BWI
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…