Flight OddsWN435 MDW → SLC
Southwest Airlines · Chicago, IL to Salt Lake City, UT · 57 flights observed, 2025-08-05 to 2025-10-01 · 1,259 mi
WN435 covers more than one route in the data window — the stats below are for MDW → SLC, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
71%
Median delay
0 min
90th percentile
+34 min
Cancellation rate
2%
How often is WN435 on time?
Across 57 flights on MDW → SLC from 2025-08-05 to 2025-10-01, WN435 arrived within 15 minutes of schedule 71% of the time. The median arrival delay was 0 min, and the worst 10% of flights arrived +34 min or later. 2% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 39 | 71% |
| 16-30 min | 9 | 16% |
| 31-60 min | 6 | 11% |
| 61-120 min | 1 | 2% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-08 | 24 | 71% | +6 min |
| 2025-09 | 30 | 70% | +4 min |
| 2025-10 | 1 | 100% | +1 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 7 | 86% |
| Tue | 9 | 78% |
| Wed | 9 | 56% |
| Thu | 8 | 63% |
| Fri | 8 | 75% |
| Sat | 8 | 63% |
| Sun | 6 | 83% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…