Flight OddsWN3138 DCA → MDW
Southwest Airlines · Washington, DC to Chicago, IL · 49 flights observed, 2025-08-05 to 2025-10-01 · 601 mi
WN3138 covers more than one route in the data window — the stats below are for DCA → MDW, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
72%
Median delay
-9 min
90th percentile
+55 min
Cancellation rate
2%
How often is WN3138 on time?
Across 49 flights on DCA → MDW from 2025-08-05 to 2025-10-01, WN3138 arrived within 15 minutes of schedule 72% of the time. The median arrival delay was -9 min, and the worst 10% of flights arrived +55 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 | 34 | 72% |
| 16-30 min | 4 | 9% |
| 31-60 min | 6 | 13% |
| 61-120 min | 2 | 4% |
| 2+ hrs | 1 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-08 | 20 | 60% | +14 min |
| 2025-09 | 26 | 81% | -2 min |
| 2025-10 | 1 | 100% | -23 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 6 | 100% |
| Tue | 9 | 89% |
| Wed | 9 | 56% |
| Thu | 8 | 63% |
| Fri | 8 | 100% |
| Sat | No data | — |
| Sun | 7 | 29% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…