Route turbulence forecast
Chicago → St. Louis
Turbulence forecast for flights from Chicago Midway International Airport (MDW) to St Louis Lambert International Airport (STL).
Check flights on this route
Get a segment-by-segment turbulence forecast for any scheduled flight from MDW to STL, with live wind and pilot reports.
Live status with real-time delays and cancellations.
What to expect on this route
Southbound · Great-circle bearing -146°
This is a short or low-latitude sector, so clear-air turbulence from upper-level jets is rare.
Seasonal turbulence pattern
Seasonal turbulence on this route is modest — most variation comes from day-to-day weather rather than strong seasonal cycles.
- Peak turbulence
- November–March (Northern Hemisphere winter)
- Typically calmest
- Late spring to early autumn (May–September)
MDW → STL turbulence FAQ
Is the Chicago to St. Louis flight usually bumpy?
Most of the 404 km route sits in the mid latitude band with minimal jet-stream exposure. Historically that means most flights cruise in smooth air, with turbulence limited to short sectors near weather systems.
When is the best time to fly MDW to STL for a smooth flight?
Statistically, Late spring to early autumn (May–September) sees the calmest conditions for this corridor. Within any season, morning departures see less convective (thunderstorm-driven) turbulence than afternoon flights.
How long is the flight from MDW to STL?
Block time is usually around 57m direct, cruising at approximately FL300 (30,000 ft). Actual duration varies with winds — tailwinds can shave 15–30 minutes, headwinds can add 30+ minutes on this southbound sector.
How accurate is Turbcast's forecast for this route?
We use live NOAA Aviation Weather Center pilot reports (PIREPs), SIGMETs and AIRMETs, layered with physics-based Ellrod and Richardson-number calculations from Open-Meteo pressure-level wind and temperature data. If a source is unavailable for a waypoint we show an em dash rather than invent a value.
Articles
More on Chicago ↔ St. Louis
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