WN4859 PIT → PHX

Southwest Airlines · Pittsburgh, PA to Phoenix, AZ · 13 flights observed, 2025-11-25 to 2026-01-04 · 1,814 mi

This flight has been on time less than half the time (46%) — expect a real chance of a delay.

WN4859 covers more than one route in the data window — the stats below are for PIT → PHX, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
46%
Median delay
+17 min
90th percentile
+66 min
Cancellation rate
0%

How often is WN4859 on time?

Across 13 flights on PIT → PHX from 2025-11-25 to 2026-01-04, WN4859 arrived within 15 minutes of schedule 46% of the time. The median arrival delay was +17 min, and the worst 10% of flights arrived +66 min or later. 0% of flights were cancelled.

Delay distribution

Arrival delay for completed flights (excludes cancellations and diversions).

ArrivalFlightsShare
Early / on-time646%
16-30 min323%
31-60 min215%
61-120 min18%
2+ hrs18%

Performance by month

MonthFlightsOn-timeAvg delay
2025-11250%+87 min
2025-12944%+22 min
2026-01250%+31 min

Performance by day of week

DayFlightsOn-time
Mon367%
Tue333%
Wed1100%
ThuNo data—
Fri367%
SatNo data—
Sun30%

Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…