Flight OddsWN3978 MSY → MDW
Southwest Airlines · New Orleans, LA to Chicago, IL · 20 flights observed, 2026-03-05 to 2026-04-06 · 825 mi
WN3978 covers more than one route in the data window — the stats below are for MSY → MDW, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
94%
Median delay
-9 min
90th percentile
+4 min
Cancellation rate
15%
How often is WN3978 on time?
Across 20 flights on MSY → MDW from 2026-03-05 to 2026-04-06, WN3978 arrived within 15 minutes of schedule 94% of the time. The median arrival delay was -9 min, and the worst 10% of flights arrived +4 min or later. 15% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 15 | 94% |
| 16-30 min | 0 | 0% |
| 31-60 min | 1 | 6% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-03 | 12 | 92% | -4 min |
| 2026-04 | 4 | 100% | -12 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 4 | 100% |
| Tue | No data | — |
| Wed | No data | — |
| Thu | 4 | 75% |
| Fri | 3 | 100% |
| Sat | No data | — |
| Sun | 5 | 100% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…