Flight OddsMDW → GRR Southwest Airlines
Southwest Airlines · Chicago, IL to Grand Rapids, MI · 931 flights, 2025-07-01 to 2026-06-30 · aggregated across 44 flight numbers
On-time arrival
76%
Median delay
-2 min
90th percentile
+47 min
Cancellation rate
1%
How on-time is Southwest Airlines from MDW to GRR?
Across every Southwest Airlines flight number on MDW → GRR (931 flights, 2025-07-01 to 2026-06-30), 76% arrived within 15 minutes of schedule. Median arrival delay -2 min; the worst 10% ran +47 min or later. 1% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 701 | 76% |
| 16-30 min | 84 | 9% |
| 31-60 min | 67 | 7% |
| 61-120 min | 48 | 5% |
| 2+ hrs | 22 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 88 | 67% | +21 min |
| 2025-08 | 86 | 72% | +13 min |
| 2025-09 | 86 | 81% | +1 min |
| 2025-10 | 88 | 85% | +0 min |
| 2025-11 | 57 | 88% | -2 min |
| 2025-12 | 60 | 67% | +15 min |
| 2026-01 | 61 | 79% | +3 min |
| 2026-02 | 56 | 80% | +5 min |
| 2026-03 | 84 | 80% | +16 min |
| 2026-04 | 84 | 76% | +9 min |
| 2026-05 | 87 | 74% | +10 min |
| 2026-06 | 85 | 67% | +16 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 136 | 74% |
| Tue | 140 | 81% |
| Wed | 138 | 86% |
| Thu | 137 | 70% |
| Fri | 137 | 74% |
| Sat | 97 | 78% |
| Sun | 137 | 70% |
WN flight numbers on MDW → GRR
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…