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Route turbulence forecast

Denver Los Angeles

Turbulence forecast for flights from Denver International Airport (DEN) to Los Angeles International Airport (LAX).

Mountain-wave sensitive route
Distance
1,385 km
748 nm
Typical duration
2h 17m
Ground-speed estimate
Cruise
FL340
34,000 ft
Jet stream
Moderate — partial jet exposure

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Get a segment-by-segment turbulence forecast for any scheduled flight from DEN to LAX, with live wind and pilot reports.

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What to expect on this route

Westbound (usually into prevailing winds) · Great-circle bearing -114°

The route crosses mid-latitudes where the polar jet can influence flight conditions, though exposure is shorter than on genuine long-haul crossings. The route crosses or passes near the Rocky Mountains, which can generate mountain-wave turbulence downwind when upper-level winds are strong. Westbound aircraft typically fly against the prevailing winds, adding flight time. Captains often pick altitudes that avoid the strongest headwinds, which can also mean picking cleaner-air altitudes.

Mountain crossings
Rocky Mountains

Seasonal turbulence pattern

Wind flowing over the Rocky Mountains can generate mountain-wave turbulence that extends hundreds of kilometres downwind — most pronounced in the northern winter (Nov–Mar), when upper-level winds are strongest.

Peak turbulence
November–March (Northern Hemisphere winter)
Typically calmest
Late spring to early autumn (May–September)

DENLAX turbulence FAQ

Is the Denver to Los Angeles flight usually bumpy?

Most of the 1,385 km route sits in the mid latitude band with moderate jet-stream exposure. Historically that means occasional clear-air turbulence at cruise altitude is normal, especially in winter. Mountain-wave effects near the Rocky Mountains add short bumpy stretches when upper-level winds are strong.

When is the best time to fly DEN to LAX for a smooth flight?

Statistically, Late spring to early autumn (May–September) sees the calmest conditions for this corridor. Within any season, morning departures see less convective (thunderstorm-driven) turbulence than afternoon flights.

How long is the flight from DEN to LAX?

Block time is usually around 2h 17m direct, cruising at approximately FL340 (34,000 ft). Actual duration varies with winds — tailwinds can shave 15–30 minutes, headwinds can add 30+ minutes on this westbound sector.

How accurate is Turbcast's forecast for this route?

We use live NOAA Aviation Weather Center pilot reports (PIREPs), SIGMETs and AIRMETs, layered with physics-based Ellrod and Richardson-number calculations from Open-Meteo pressure-level wind and temperature data. If a source is unavailable for a waypoint we show an em dash rather than invent a value.

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