Flight OddsWN2521 PHX → MDW
Southwest Airlines · Phoenix, AZ to Chicago, IL · 23 flights observed, 2026-06-04 to 2026-06-30 · 1,444 mi
WN2521 covers more than one route in the data window — the stats below are for PHX → MDW, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
4%
Median delay
+55 min
90th percentile
+95 min
Cancellation rate
0%
How often is WN2521 on time?
Across 23 flights on PHX → MDW from 2026-06-04 to 2026-06-30, WN2521 arrived within 15 minutes of schedule 4% of the time. The median arrival delay was +55 min, and the worst 10% of flights arrived +95 min or later. 0% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 1 | 4% |
| 16-30 min | 5 | 22% |
| 31-60 min | 7 | 30% |
| 61-120 min | 9 | 39% |
| 2+ hrs | 1 | 4% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-06 | 23 | 4% | +57 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 4 | 0% |
| Tue | 4 | 0% |
| Wed | 3 | 0% |
| Thu | 4 | 0% |
| Fri | 4 | 0% |
| Sat | 4 | 25% |
| 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…