WN1021 MDW → SAN
Southwest Airlines · Chicago, IL to San Diego, CA · 41 flights observed, 2025-11-02 to 2026-01-05 · 1,728 mi
WN1021 covers more than one route in the data window — the stats below are for MDW → SAN, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
73%
Median delay
0 min
90th percentile
+49 min
Cancellation rate
0%
How often is WN1021 on time?
Across 41 flights on MDW → SAN from 2025-11-02 to 2026-01-05, WN1021 arrived within 15 minutes of schedule 73% of the time. The median arrival delay was 0 min, and the worst 10% of flights arrived +49 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 | 30 | 73% |
| 16-30 min | 3 | 7% |
| 31-60 min | 6 | 15% |
| 61-120 min | 2 | 5% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-11 | 21 | 81% | +2 min |
| 2025-12 | 18 | 67% | +13 min |
| 2026-01 | 2 | 50% | +23 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 7 | 57% |
| Tue | 6 | 83% |
| Wed | 8 | 63% |
| Thu | 8 | 88% |
| Fri | 6 | 67% |
| Sat | No data | — |
| 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…