Flight OddsWN818 DEN → MDW
Southwest Airlines · Denver, CO to Chicago, IL · 42 flights observed, 2026-01-06 to 2026-03-04 · 895 mi
WN818 covers more than one route in the data window — the stats below are for DEN → MDW, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
83%
Median delay
0 min
90th percentile
+32 min
Cancellation rate
2%
How often is WN818 on time?
Across 42 flights on DEN → MDW from 2026-01-06 to 2026-03-04, WN818 arrived within 15 minutes of schedule 83% of the time. The median arrival delay was 0 min, and the worst 10% of flights arrived +32 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 | 83% |
| 16-30 min | 2 | 5% |
| 31-60 min | 4 | 10% |
| 61-120 min | 1 | 2% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-01 | 22 | 86% | +4 min |
| 2026-02 | 16 | 75% | +10 min |
| 2026-03 | 3 | 100% | -2 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 7 | 100% |
| Tue | 8 | 75% |
| Wed | 9 | 67% |
| Thu | 6 | 83% |
| Fri | 5 | 100% |
| 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…