WN3663 MCI → PHX

Southwest Airlines · Kansas City, MO to Phoenix, AZ · 35 flights observed, 2025-07-01 to 2025-08-04 · 1,044 mi

This flight runs much more reliably at some times of day than others — 100% on-time departing 12–3pm vs. 60% departing 3–6pm.

WN3663 covers more than one route in the data window — the stats below are for MCI → PHX, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
85%
Median delay
-4 min
90th percentile
+22 min
Cancellation rate
3%

How often is WN3663 on time?

Across 35 flights on MCI → PHX from 2025-07-01 to 2025-08-04, WN3663 arrived within 15 minutes of schedule 85% of the time. The median arrival delay was -4 min, and the worst 10% of flights arrived +22 min or later. 3% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time2985%
16-30 min412%
31-60 min00%
61-120 min00%
2+ hrs13%

Performance by month

MonthFlightsOn-timeAvg delay
2025-073087%+4 min
2025-08475%-1 min

Performance by day of week

DayFlightsOn-time
Mon5100%
Tue580%
Wed475%
Thu580%
Fri5100%
Sat560%
Sun5100%

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