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Route turbulence forecast
Turbulence forecast for flights from Chicago O'Hare International Airport (ORD) to Vancouver International Airport (YVR).
Get a segment-by-segment turbulence forecast for any scheduled flight from ORD to YVR, with live wind and pilot reports.
Live status with real-time delays and cancellations.
Westbound (usually into prevailing winds) · Great-circle bearing -61°
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.
Transpacific routes are most turbulent in winter months when the polar jet is strong and positioned further south. Wind flowing over Rocky Mountains can generate mountain-wave turbulence that extends hundreds of kilometres downwind — most pronounced in winter when upper-level winds are strongest.
Most of the 2,831 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.
Statistically, Late spring and early autumn sees the calmest conditions for this corridor. Within any season, morning departures see less convective (thunderstorm-driven) turbulence than afternoon flights.
Block time is usually around 4h 08m direct, cruising at approximately FL370 (37,000 ft). Actual duration varies with winds — tailwinds can shave 15–30 minutes, headwinds can add 30+ minutes on this westbound sector.
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.
Articles
Articles that unpack the factors driving turbulence on this type of route.
Winter over the Atlantic, monsoon over Asia, summer over the US — turbulence has a calendar. Here's the month-by-month pattern for every major flight corridor, and the best months to book a smoother flight.
Read moreUnderstanding Clear Air Turbulence - what causes it, where it occurs, and why it's the hardest type of turbulence to predict. Essential reading for frequent flyers.
Read moreShort answer: almost certainly not. Here's the full engineering, historical, and statistical picture of how modern aircraft handle turbulence — including what the Singapore Airlines SQ321 incident really tells us.
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