When is the Seattle to Boise route most turbulent?

See the monthly chart above for exact patterns. Transatlantic and mountain routes are typically roughest in winter (Dec–Mar). Tropical and Caribbean routes peak during monsoon season (Jul–Sep).

What aircraft operates the SEA to BOI route?

The SEA–BOI route is typically operated by Boeing 737 · Airbus A319 · Embraer E175. Airlines include Alaska Airlines, Southwest Airlines, Delta Air Lines.

Is turbulence on SEA to BOI dangerous?

No — turbulence on the SEA–BOI route is not dangerous to the aircraft. Modern commercial aircraft are built to withstand far more stress than any turbulence encountered. The main risk is to unbelted passengers. Always keep your seatbelt fastened when seated.

How can I check turbulence before my SEA to BOI flight?

Use the Turbulence Forecast app (iOS & Android) for real-time PIREPs, SIGMET alerts, and AI-powered forecasts for the SEA–BOI route. The app shows minute-by-minute turbulence timing for your specific flight date.

SEA to BOI Turbulence Forecast

Q: Is the Seattle to Boise flight turbulent?

The SEA–BOI route typically experiences light turbulence. Light turbulence may occur — mostly smooth with occasional bumps.

Q: Which seat is smoothest on SEA to BOI?

Wing seats are smoothest. On a Boeing 737 · Airbus A319 · Embraer E175, that's rows 12–20. Avoid the rear of the aircraft where turbulence is felt most.

Q: How long is the flight from SEA to BOI?

The SEA to BOI flight takes approximately 1h 35m, covering 399 miles (347 nautical miles) at a cruising altitude of 32,000 feet.

Is the Seattle to Boise flight turbulent? Live forecast & historical patterns.

Live forecast

SEA

→

BOI

Seattle · Boise · 1h 35m

Turb Score

1h 35m

Duration

347 nm

Distance

32,000 ft

Cruise Alt.

Light

Typical

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Typical turbulence along the route

Historical average pattern for SEA–BOI

0h1h2h3h4h5h6h1h 35m

Smooth

Light

Moderate

Heavy

About the SEA–BOI route

The Seattle to Boise route crosses the Rocky Mountains — one of the most turbulent regions in North America. Mountain wave turbulence occurs when strong winds blow over mountain peaks, creating powerful invisible waves that extend to cruise altitude. The worst turbulence typically occurs in the first 30–60 minutes when the aircraft is climbing over the range.

The route is served by Alaska Airlines, Southwest Airlines, Delta Air Lines on Boeing 737 · Airbus A319 · Embraer E175 aircraft, with flights typically cruising at 32,000 feet over a distance of 399 miles (347 nautical miles).

💡 Tip: Mountain wave turbulence hits early. If flying over Rockies, expect the first hour to be bumpy.

Seattle to Boise Flight Time

How long is the flight from SEA to BOI?

1h 35m

Flight Time

399 mi

Distance

32,000 ft

Cruising Altitude

Boeing 737

Aircraft

The Seattle (SEA) to Boise (BOI) flight takes approximately 1h 35m, covering 399 miles (347 nautical miles) at 32,000 feet. The route is operated by Alaska Airlines, Southwest Airlines, Delta Air Lines. Actual flight time may vary by 10–20 minutes depending on wind conditions and routing.

Turbulence levels on SEA–BOI

What to expect at each phase of the flight

SmoothDeparture & arrival — climb and descent phases are generally calm

LightMinor bumps — drink stays in your cup, walking feels slightly unsteady

ModerateNoticeable bumps — stay seated with seatbelt on, service may pause

HeavyStrong jolts — unsecured items move, crew seated. Rare but possible

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Best time to fly SEA–BOI

Turbulence by month

Smooth

Light

Moderate

Rough

Best seat on SEA–BOI

Boeing 737

Front

Rows 1–11

Light

✓ Wing

Rows 12–20

Smoothest

Rear

Rows 21+

Rougher

Wing seats are over the center of gravity — least affected by turbulence.

What you'll see in the app

Full forecast, live map & seat recommendations

Similar routes

Other popular routes with turbulence data

GEG → LAX

Spokane → Los Angeles

Light

SEA → LAX

Seattle → Los Angeles

Light

PDX → LAX

Portland → Los Angeles

Light

SLC → LAX

Salt Lake City → Los Angeles

See all mountain routes →

Related guides

Learn more about flight turbulence

Turbulence Tracker

Track any flight in real time

→

Best Seat Guide

Which rows feel turbulence least

→

Mountain Turbulence

Why mountain routes are the bumpiest

→

Severe Turbulence

What it feels like and how to prepare

→

Turbulence Forecast Map

Global turbulence outlook

→

Passenger Reports

A few bumpy patches crossing the ridge, lasted maybe half an hour total. Drink service was paused briefly. Not unusual for this time of year.

Frequent flyer · May

The 1h 35m flight had some light shaking around the halfway point. Nothing spilled, nobody panicked. Just normal flying.

Leisure traveler · September

There was some noticeable movement over the mountains that made me grip the armrest. My seatmate (clearly a regular) didn't even look up from their book. Perspective.

First-time flyer · March

All SEA routes→ All BOI routes→

Frequently asked questions

Is the Seattle to Boise flight turbulent?

The SEA–BOI route typically experiences light turbulence. Light turbulence may occur — mostly smooth with occasional bumps. The turbulence score for this route is 31/100.

When is turbulence worst on SEA to BOI?

Mountain wave turbulence hits early. If flying over Rockies, expect the first hour to be bumpy. Check the turbulence chart above for the typical pattern along this specific route.

Which seat is smoothest on SEA to BOI?

Wing seats are always the smoothest. On a Boeing 737 (the most common aircraft on this route), that's rows 12–20. Avoid the very rear of the aircraft — it amplifies turbulence motion.

How long is the flight from SEA to BOI?

The SEA to BOI flight takes approximately 1h 35m, covering 399 miles (347 nautical miles).

Which airlines fly SEA to BOI?

The main airlines operating this route are Alaska Airlines, Southwest Airlines, Delta Air Lines, flying Boeing 737 · Airbus A319 · Embraer E175 aircraft.

Data Sources

PIREP — Pilot reports (PIREPs) submitted via FAA/ICAO systems, aggregated over 12+ months of historical data
SIGMET / AIRMET — Significant Meteorological Information bulletins from NOAA Aviation Weather Center
EDR data — Eddy Dissipation Rate measurements from commercial aircraft (ADS-B derived turbulence intensity)
Seasonal patterns — 5-year rolling averages of turbulence frequency and intensity by month for this route

Scores represent typical conditions. Actual turbulence varies daily. For real-time forecasts, use the Turbulence Forecast app. · About our data