Flight OddsWN879 TUS → MDW
Southwest Airlines · Tucson, AZ to Chicago, IL · 21 flights observed, 2025-11-02 to 2026-01-05 · 1,440 mi
WN879 covers more than one route in the data window — the stats below are for TUS → MDW, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
95%
Median delay
-9 min
90th percentile
+4 min
Cancellation rate
0%
How often is WN879 on time?
Across 21 flights on TUS → MDW from 2025-11-02 to 2026-01-05, WN879 arrived within 15 minutes of schedule 95% of the time. The median arrival delay was -9 min, and the worst 10% of flights arrived +4 min or later. 0% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 20 | 95% |
| 16-30 min | 1 | 5% |
| 31-60 min | 0 | 0% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-11 | 14 | 93% | -7 min |
| 2025-12 | 6 | 100% | -5 min |
| 2026-01 | 1 | 100% | -18 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 3 | 67% |
| Tue | No data | — |
| Wed | No data | — |
| Thu | 3 | 100% |
| Fri | 5 | 100% |
| Sat | 4 | 100% |
| Sun | 6 | 100% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…