Los Angeles to Des Moines Turbulence Forecast

LAX → DSM · 1,444 miles · ~3h 23m

What to Expect

Flying from Los Angeles to Des Moines means crossing a diverse landscape, and that comes with a few typical turbulence patterns. Shortly after takeoff, you'll be over the Mojave and Sonoran Deserts, where thermal turbulence is common, especially during the day as the sun heats the ground unevenly. As you continue northeast, you'll encounter the Central Rockies and the Front Range, where mountain wave turbulence can occur as wind flows over the mountains. Finally, as you approach Des Moines over the Great Plains, clear-air turbulence (CAT) might be present. CAT is often associated with jet streams and changes in air pressure. Remember, pilots are trained to anticipate and navigate these conditions. It's all part of a normal flight.

Between Los Angeles and Des Moines, the flight path crosses the Central Rockies of Colorado and Utah. This area is one of the most turbulence-prone zones in the U.S., with mountain wave activity reported on more than half of winter days. Waves can propagate far downstream, meaning turbulence may begin well before or after the visible peaks.

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 Central Rockies produce frequent, sometimes severe, mountain waves that can extend 100+ miles downstream.
• Clear-Air Turbulence (CAT): The jet stream frequently meanders over the Great Plains, producing wind shear and clear-air turbulence at cruising altitudes.

When Is This Route Bumpiest?

The most consistently smooth flights on this route tend to be in the fall and summer. Winter and early spring can be a bit more turbulent, particularly when crossing the Rockies. Mountain wave turbulence is more common when strong winds interact with the mountain ranges. Increased temperature differences in the desert during summer months can make thermals stronger and more frequent. Be aware, that even in smoother seasons, occasional bumps are still possible, as weather is inherently variable.

Tips for This Flight

If you're concerned about turbulence, try booking a morning flight, as thermal turbulence is often less pronounced earlier in the day, especially over the deserts. The bumps you might experience on this route are usually like driving on a slightly bumpy road, some gentle rocking, and occasional stronger jolts. Choose a seat over the wing for a slightly more stable ride, and stay well-hydrated before and during the flight. Deep, slow breaths can also help you stay calm. Remember, the crew is there to keep you safe and comfortable, and they're always monitoring the conditions.

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Forecasts based on NOAA HRRR and GFS atmospheric model data.