Best Time to Fly MDW to STL
Chicago 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
MDW → STL on-time performance by month
24
25
26
JanFebMarAprMayJunJulAugSepOctNovDec
Worse
Better
Monthly breakdown
| Month | On-time | Cancel rate | Flights |
|---|---|---|---|
| January | 1% | 0.1% | 563 |
| February | 1% | 0% | 502 |
| March | 1% | 0% | 616 |
| April | 1% | 0% | 636 |
| May | 1% | 0% | 672 |
| June | 1% | 0% | 692 |
| July | 1% | 0% | 733 |
| August | 1% | 0% | 533 |
| September | 1% | 0% | 498 |
| October | 1% | 0% | 502 |
| November | 1% | 0% | 445 |
| December | 1% | 0% | 468 |
Frequently asked
What is the best month to fly from MDW to STL?
January has the highest on-time rate at 1% for flights from Chicago to St. Louis.
What is the worst month to fly MDW to STL?
January has the lowest on-time rate at 1%, often due to winter weather.
How often are MDW to STL flights delayed?
On average, 1% of flights from MDW to STL arrive on time. That means about 99% experience some form of delay.
Source: Bureau of Transportation Statistics.