WN4504 PHX → BUF

Southwest Airlines · Phoenix, AZ to Buffalo, NY · 21 flights observed, 2025-11-02 to 2026-01-05 · 1,912 mi

This flight's reliability varies a lot by day of week — 100% on-time on Fridays vs. 50% on Sundays.

WN4504 covers more than one route in the data window — the stats below are for PHX → BUF, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
76%
Median delay
-2 min
90th percentile
+49 min
Cancellation rate
0%

How often is WN4504 on time?

Across 21 flights on PHX → BUF from 2025-11-02 to 2026-01-05, WN4504 arrived within 15 minutes of schedule 76% of the time. The median arrival delay was -2 min, and the worst 10% of flights arrived +49 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time1676%
16-30 min210%
31-60 min15%
61-120 min15%
2+ hrs15%

Performance by month

MonthFlightsOn-timeAvg delay
2025-111471%+16 min
2025-12683%+4 min
2026-011100%-16 min

Performance by day of week

DayFlightsOn-time
Mon367%
TueNo data—
WedNo data—
Thu367%
Fri5100%
Sat4100%
Sun650%

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