Flight OddsWN3996 MDW → SAN
Southwest Airlines · Chicago, IL to San Diego, CA · 28 flights observed, 2026-03-05 to 2026-04-06 · 1,728 mi
WN3996 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
67%
Median delay
0 min
90th percentile
+53 min
Cancellation rate
4%
How often is WN3996 on time?
Across 28 flights on MDW → SAN from 2026-03-05 to 2026-04-06, WN3996 arrived within 15 minutes of schedule 67% of the time. The median arrival delay was 0 min, and the worst 10% of flights arrived +53 min or later. 4% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 18 | 67% |
| 16-30 min | 2 | 7% |
| 31-60 min | 4 | 15% |
| 61-120 min | 3 | 11% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-03 | 22 | 64% | +15 min |
| 2026-04 | 5 | 80% | +5 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 5 | 80% |
| Tue | 3 | 67% |
| Wed | 4 | 100% |
| Thu | 5 | 40% |
| Fri | 5 | 60% |
| Sat | No data | — |
| Sun | 5 | 60% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…