Flight OddsWN3540 CMH → MDW
Southwest Airlines · Columbus, OH to Chicago, IL · 8 flights observed, 2026-03-10 to 2026-04-01 · 283 mi
WN3540 covers more than one route in the data window — the stats below are for CMH → MDW, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
43%
Median delay
+42 min
90th percentile
+102 min
Cancellation rate
13%
How often is WN3540 on time?
Across 8 flights on CMH → MDW from 2026-03-10 to 2026-04-01, WN3540 arrived within 15 minutes of schedule 43% of the time. The median arrival delay was +42 min, and the worst 10% of flights arrived +102 min or later. 13% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 3 | 43% |
| 16-30 min | 0 | 0% |
| 31-60 min | 3 | 43% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 1 | 14% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-03 | 6 | 50% | +18 min |
| 2026-04 | 1 | 0% | +184 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | No data | — |
| Tue | 3 | 33% |
| Wed | 4 | 50% |
| Thu | No data | — |
| Fri | No data | — |
| Sat | No data | — |
| Sun | No data | — |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…