Flight OddsWN3540 LGA → MDW
Southwest Airlines · New York, NY to Chicago, IL · 31 flights observed, 2025-10-02 to 2025-11-01 · 725 mi
WN3540 covers more than one route in the data window — the stats below are for LGA → MDW, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
60%
Median delay
+6 min
90th percentile
+100 min
Cancellation rate
3%
How often is WN3540 on time?
Across 31 flights on LGA → MDW from 2025-10-02 to 2025-11-01, WN3540 arrived within 15 minutes of schedule 60% of the time. The median arrival delay was +6 min, and the worst 10% of flights arrived +100 min or later. 3% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 18 | 60% |
| 16-30 min | 4 | 13% |
| 31-60 min | 4 | 13% |
| 61-120 min | 1 | 3% |
| 2+ hrs | 3 | 10% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-10 | 29 | 59% | +27 min |
| 2025-11 | 1 | 100% | -11 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 4 | 50% |
| Tue | 4 | 75% |
| Wed | 4 | 25% |
| Thu | 4 | 50% |
| Fri | 5 | 60% |
| Sat | 5 | 80% |
| Sun | 4 | 75% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…