Flight OddsWN4978 MKE → PHX
Southwest Airlines · Milwaukee, WI to Phoenix, AZ · 55 flights observed, 2026-01-06 to 2026-03-04 · 1,460 mi
WN4978 covers more than one route in the data window — the stats below are for MKE → PHX, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
96%
Median delay
-17 min
90th percentile
+6 min
Cancellation rate
0%
How often is WN4978 on time?
Across 55 flights on MKE → PHX from 2026-01-06 to 2026-03-04, WN4978 arrived within 15 minutes of schedule 96% of the time. The median arrival delay was -17 min, and the worst 10% of flights arrived +6 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 | 53 | 96% |
| 16-30 min | 2 | 4% |
| 31-60 min | 0 | 0% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-01 | 26 | 96% | -17 min |
| 2026-02 | 25 | 96% | -12 min |
| 2026-03 | 4 | 100% | -7 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 8 | 100% |
| Tue | 9 | 89% |
| Wed | 9 | 100% |
| Thu | 8 | 100% |
| Fri | 8 | 88% |
| Sat | 5 | 100% |
| Sun | 8 | 100% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…