Flight OddsMDW → PWM Southwest Airlines
Southwest Airlines · Chicago, IL to Portland, ME · 151 flights, 2025-07-01 to 2026-06-30 · aggregated across 6 flight numbers
On-time arrival
84%
Median delay
-6 min
90th percentile
+31 min
Cancellation rate
1%
How on-time is Southwest Airlines from MDW to PWM?
Across every Southwest Airlines flight number on MDW → PWM (151 flights, 2025-07-01 to 2026-06-30), 84% arrived within 15 minutes of schedule. Median arrival delay -6 min; the worst 10% ran +31 min or later. 1% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 124 | 84% |
| 16-30 min | 8 | 5% |
| 31-60 min | 10 | 7% |
| 61-120 min | 4 | 3% |
| 2+ hrs | 2 | 1% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 30 | 80% | 0 min |
| 2025-08 | 31 | 90% | -5 min |
| 2025-09 | 30 | 93% | -2 min |
| 2025-10 | 30 | 97% | -5 min |
| 2025-11 | 1 | 100% | -5 min |
| 2026-06 | 26 | 54% | +30 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 20 | 75% |
| Tue | 22 | 86% |
| Wed | 21 | 90% |
| Thu | 21 | 86% |
| Fri | 22 | 82% |
| Sat | 21 | 81% |
| Sun | 21 | 86% |
WN flight numbers on MDW → PWM
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…