When is the Kalispell to Seattle route most turbulent?

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

FCA to SEA Turbulence Forecast

Q: Is the Kalispell to Seattle flight turbulent?

The FCA–SEA route typically experiences severe turbulence. Heavy turbulence likely — stay seated with seatbelt fastened.

Q: Which seat is smoothest on FCA to SEA?

Wing seats are smoothest. On a Airbus A320 · Boeing 737, that's rows 10–20. Avoid the rear of the aircraft.

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

The FCA to SEA flight takes approximately 1h 25m, covering 378 miles at 33,000 feet.

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

Live forecast

FCA

→

SEA

Kalispell · Seattle · 1h 25m

85.0

Turb Score

1h 25m

Duration

328 nm

Distance

33,000 ft

Cruise Alt.

Severe

Typical

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Typical turbulence along the route

Historical average pattern for FCA–SEA

0h1h2h3h4h5h6h1h 25m

Smooth

Light

Moderate

Heavy

About the FCA–SEA route

The Kalispell to Seattle 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 United, American Airlines, Delta on Airbus A320 · Boeing 737 aircraft, with flights typically cruising at 33,000 feet over a distance of 378 miles (328 nautical miles).

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

Kalispell to Seattle Flight Time

How long is the flight from FCA to SEA?

1h 25m

Flight Time

378 mi

Distance

33,000 ft

Cruising Altitude

Airbus A320

Aircraft

The Kalispell (FCA) to Seattle (SEA) flight takes approximately 1h 25m, covering 378 miles (328 nautical miles) at 33,000 feet. The route is operated by United, American Airlines, Delta. Actual flight time may vary by 10–20 minutes depending on wind conditions and routing.

Turbulence levels on FCA–SEA

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 FCA–SEA

Turbulence by month

Smooth

Light

Moderate

Rough

Best seat on FCA–SEA

Airbus A320

Front

Rows 1–9

Light

✓ Wing

Rows 10–20

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

FCA → LAX

Kalispell → Los Angeles

Severe

FCA → SFO

Kalispell → San Francisco

See all mountain routes →

Related guides

Learn more about flight turbulence

Turbulence Tracker

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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

→

Is Turbulence Dangerous?

What the safety data shows

→

Passenger Reports

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

First-time flyer · May

The 1h 25m flight had some light shaking around the halfway point. Nothing spilled, nobody panicked. Just normal flying.

Leisure traveler · July

Flew Kalispell–Seattle in April, had some light turbulence in the middle portion of the flight. Brief and nothing concerning. This route is usually fine.

Business traveler · April

All FCA routes→ All SEA routes→

Frequently asked questions

Is the Kalispell to Seattle flight turbulent?

The FCA–SEA route typically experiences severe turbulence. Heavy turbulence likely — stay seated with seatbelt fastened. The turbulence score for this route is 85.0/100.

When is turbulence worst on FCA to SEA?

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 FCA to SEA?

Wing seats are always the smoothest. On a Airbus A320 (the most common aircraft on this route), that's rows 10–20. Avoid the very rear of the aircraft — it amplifies turbulence motion.

How long is the flight from FCA to SEA?

The FCA to SEA flight takes approximately 1h 25m, covering 378 miles (328 nautical miles).

Which airlines fly FCA to SEA?

The main airlines operating this route are United, American Airlines, Delta, flying Airbus A320 · Boeing 737 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