Flight OddsWN429 MDW → SEA
Southwest Airlines · Chicago, IL to Seattle, WA · 5 flights observed, 2025-11-22 to 2026-01-03 · 1,733 mi
WN429 covers more than one route in the data window — the stats below are for MDW → SEA, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
75%
Median delay
-2 min
90th percentile
+39 min
Cancellation rate
20%
How often is WN429 on time?
Across 5 flights on MDW → SEA from 2025-11-22 to 2026-01-03, WN429 arrived within 15 minutes of schedule 75% of the time. The median arrival delay was -2 min, and the worst 10% of flights arrived +39 min or later. 20% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 3 | 75% |
| 16-30 min | 0 | 0% |
| 31-60 min | 1 | 25% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-11 | 1 | 100% | -17 min |
| 2025-12 | 2 | 50% | +29 min |
| 2026-01 | 1 | 100% | -7 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | No data | — |
| Tue | No data | — |
| Wed | No data | — |
| Thu | No data | — |
| Fri | No data | — |
| Sat | 4 | 75% |
| Sun | No data | — |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…