Flight OddsWN429 ATL → MDW
Southwest Airlines · Atlanta, GA to Chicago, IL · 76 flights observed, 2025-08-05 to 2026-01-04 · 591 mi
WN429 covers more than one route in the data window — the stats below are for ATL → MDW, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
81%
Median delay
-4 min
90th percentile
+37 min
Cancellation rate
1%
How often is WN429 on time?
Across 76 flights on ATL → MDW from 2025-08-05 to 2026-01-04, WN429 arrived within 15 minutes of schedule 81% of the time. The median arrival delay was -4 min, and the worst 10% of flights arrived +37 min or later. 1% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 61 | 81% |
| 16-30 min | 4 | 5% |
| 31-60 min | 10 | 13% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-08 | 27 | 70% | +10 min |
| 2025-09 | 30 | 93% | -5 min |
| 2025-10 | 1 | 100% | -13 min |
| 2025-11 | 3 | 67% | +9 min |
| 2025-12 | 11 | 73% | +9 min |
| 2026-01 | 3 | 100% | -6 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 11 | 73% |
| Tue | 12 | 58% |
| Wed | 10 | 90% |
| Thu | 8 | 100% |
| Fri | 11 | 91% |
| Sat | 12 | 75% |
| Sun | 11 | 91% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…