Flight OddsWN4479 DCA → MDW
Southwest Airlines · Washington, DC to Chicago, IL · 27 flights observed, 2026-06-04 to 2026-06-30 · 601 mi
WN4479 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
71%
Median delay
+6 min
90th percentile
+77 min
Cancellation rate
11%
How often is WN4479 on time?
Across 27 flights on DCA → MDW from 2026-06-04 to 2026-06-30, WN4479 arrived within 15 minutes of schedule 71% of the time. The median arrival delay was +6 min, and the worst 10% of flights arrived +77 min or later. 11% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 17 | 71% |
| 16-30 min | 2 | 8% |
| 31-60 min | 2 | 8% |
| 61-120 min | 2 | 8% |
| 2+ hrs | 1 | 4% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-06 | 24 | 71% | +20 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 4 | 100% |
| Tue | 4 | 100% |
| Wed | 1 | 100% |
| Thu | 4 | 50% |
| Fri | 3 | 67% |
| Sat | 4 | 75% |
| Sun | 4 | 25% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…