Best Time to Fly PHX to STL
Phoenix to St. Louis — month-by-month delay data from the Bureau of Transportation Statistics.
Best month
January
1% on time
Worst month
January
1% on time
PHX → STL on-time performance by month
24
25
26
JanFebMarAprMayJunJulAugSepOctNovDec
Worse
Better
Monthly breakdown
| Month | On-time | Cancel rate | Flights |
|---|---|---|---|
| January | 1% | 0% | 744 |
| February | 1% | 0% | 692 |
| March | 1% | 0% | 777 |
| April | 1% | 0% | 785 |
| May | 1% | 0% | 807 |
| June | 1% | 0% | 700 |
| July | 1% | 0% | 714 |
| August | 1% | 0% | 482 |
| September | 1% | 0% | 490 |
| October | 1% | 0% | 575 |
| November | 1% | 0% | 571 |
| December | 1% | 0% | 608 |
Frequently asked
What is the best month to fly from PHX to STL?
January has the highest on-time rate at 1% for flights from Phoenix to St. Louis.
What is the worst month to fly PHX to STL?
January has the lowest on-time rate at 1%, often due to winter weather.
How often are PHX to STL flights delayed?
On average, 1% of flights from PHX to STL arrive on time. That means about 99% experience some form of delay.
Source: Bureau of Transportation Statistics.