San Diego to Chicago Midway Turbulence Forecast

SAN → MDW · 1,725 miles · ~3h 57m

What to Expect

Your flight from San Diego to Chicago Midway crosses a wide variety of terrain, which means it's likely to encounter a few different types of turbulence. Initially, you'll be flying over the Mojave and Sonoran Deserts where rising hot air creates what's known as thermal turbulence. As you continue northeast, you'll cross the Southern Rockies, Central Rockies, and Front Range, all of which can generate mountain wave turbulence when winds flow over the peaks. Further along, over the Great Plains, you might experience clear-air turbulence (CAT), which can occur even in seemingly clear skies. The approach to Chicago takes you over Tornado Alley, where, especially during certain times of the year, severe convective turbulence is possible due to thunderstorms. Finally, as you approach Chicago, the Great Lakes and Mississippi Valley can create some lake-effect or convective turbulence, and the Ohio Valley might see frontal turbulence depending on weather patterns. These are all normal, well-understood phenomena, and pilots are trained to navigate them safely.

The San Diego to Chicago Midway route passes over the Southern Rockies in New Mexico and southern Colorado. While somewhat lower than the peaks to the north, these mountains still produce notable mountain wave turbulence, particularly when strong southwesterly winds aloft align perpendicular to the ridgeline.

Turbulence Factors on This Route

• Thermal Turbulence: Extreme desert heating generates strong thermal updrafts that cause low-to-mid-level turbulence, especially in summer afternoons.
• Mountain Wave Turbulence: The Southern Rockies produce lee waves when southwesterly upper-level winds flow across the terrain.
• Clear-Air Turbulence (CAT): The jet stream frequently meanders over the Great Plains, producing wind shear and clear-air turbulence at cruising altitudes.
• Severe Convective Turbulence: Tornado Alley supercells produce some of the most intense convective turbulence in North American aviation.

When Is This Route Bumpiest?

For the smoothest possible ride, consider flying this route in the fall or winter. Early fall is often particularly calm. The summer, late winter, spring, and early summer months can be bumpier, largely due to increased thermal activity over the deserts and stronger storm systems, especially through Tornado Alley. Mountain wave turbulence can also be more pronounced in the late winter, early spring, and early winter months, when stronger winds interact with the Rockies. The summer season is the most likely to create convective and lake-effect turbulence as you approach Chicago.

Tips for This Flight

If you're concerned about turbulence, aim for a morning flight; the atmosphere tends to be more stable earlier in the day. Any turbulence you encounter is most likely to feel like driving on a slightly bumpy road, or perhaps a sudden dip. To maximize your comfort, choose a seat over the wing of the aircraft; this tends to be the most stable part of the plane. Staying hydrated can also help you feel more relaxed, so be sure to drink plenty of water before and during your flight. Remember, pilots are experts at handling turbulence, and your safety is their top priority.

Get Your Forecast

Related Routes

See all routes from San Diego or to Chicago Midway.

More from San Diego

More to Chicago Midway

Forecasts based on NOAA HRRR and GFS atmospheric model data.