Phoenix, AZ → St. Louis, MO flight delays
PHX → STL · all airlines · 207 flights · April 2026 · source: US BTS
This route is delayed
24%of the time, by +46 min on average when it does.
This is history, not a promise — your specific flight could well be on time.
On-time rate
76%
Delayed 3h+
0.5%
Cancelled
0%
Avg when late
+46m
Best & worst day to fly
Most on-time
Wednesday
delayed 17%
Worst
Friday
delayed 39%
Which airline is most punctual on PHX → STL?
Americandelayed 14%
Southwestdelayed 29%
Frequently asked
How often is the Phoenix, AZ to St. Louis, MO flight delayed?
About 24% of PHX → STL flights arrive late (15+ minutes), by an average of 46 minutes when they do, based on 207 flights in April 2026.
Which airline is most punctual on PHX → STL?
American, delayed 14% of the time — the best of the 2 airlines flying this route.
What is the best day to fly PHX → STL?
Wednesday is the most on-time (delayed 17%), while Friday is the worst (delayed 39%).
Airport overviews