Burbank to Seattle Turbulence Forecast

BUR → SEA · 938 miles · ~2h 23m

What to Expect

Your flight from Burbank (BUR) to Seattle (SEA) is just over 900 miles heading north, and it presents a few common turbulence scenarios. Immediately after takeoff, you'll be crossing the Sierra Nevada mountains, which can generate what's called mountain wave turbulence, a bit like boat wakes in the sky. Later, you'll cross the Cascades, another mountain range that can create similar conditions. Nearing Seattle, as you approach the Pacific Coast, expect the possibility of clear-air turbulence (CAT), caused by differing air currents meeting. These are all well-understood weather phenomena, and pilots are skilled at navigating them, often adjusting altitude or route slightly to find smoother air. Think of it as driving on a road with occasional bumps; the route is well-traveled, and the drivers know what to expect.

Flights between Burbank and Seattle cross the Sierra Nevada, a steep mountain barrier in eastern California. The Sierra generates some of the most intense rotor and wave turbulence in the world — the famous "Sierra Wave" can reach the stratosphere. East-side downdrafts are especially sharp, and flights into or out of Reno or the Central Valley often feel the effects.

Turbulence Factors on This Route

• Mountain Wave Turbulence: The Sierra Nevada produces the well-known Sierra Wave, one of the strongest mountain wave systems in North America.
• Clear-Air Turbulence (CAT): Pacific jet streaks arriving onshore drive upper-level clear-air turbulence along the West Coast.

When Is This Route Bumpiest?

For the smoothest possible flight, aim for the summer or early fall. These seasons generally see less dramatic air currents over the mountains and along the coast. Winter, spring, and early spring tend to bring more turbulence. This is due to stronger jet streams aloft, and greater temperature differences that amplify the mountain wave effect over the Sierra Nevada and Cascade ranges. These seasonal shifts are typical and well-accounted for in flight planning, though.

Tips for This Flight

If you're concerned about turbulence, booking a morning flight tends to be your best bet, as the air is often calmer earlier in the day. Any bumps you do encounter are likely to feel like driving on a slightly bumpy road; not usually alarming, just a bit of a jiggle. For added comfort, choose a seat over the wing, as that area experiences less motion, and remember to stay hydrated. Taking slow, deep breaths can also help calm your nerves. Know that the pilots are constantly monitoring conditions and prioritizing your safety and comfort.

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Forecasts based on NOAA HRRR and GFS atmospheric model data.