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Turbulence is uncomfortable, not unsafe - these rankings help you know what to expect.
The world’s major commercial routes ranked by today’s forecast turbulence, smoothest first. Updated through the day from NOAA’s GTG 4.0 on US routes and live upper-air physics elsewhere.
Each route’s forecast comes from the same engine as every Turbcast forecast: NOAA’s GTG 4.0, the turbulence guidance US aviation uses, on US routes, and physics-based modelling from NOAA GFS upper-air data everywhere else. We sample turbulence severity along the great-circle route at cruise altitude, take the peak (the bumpiest patch you’d expect to fly through), and rank.
Conditions change hour to hour. This page refreshes every hour; if you have a specific flight booked, view the live forecast for your exact departure on the per-route pages.
The transatlantic North Atlantic Track and transpacific corridors sit beneath the polar jet stream - clear-air turbulence (CAT) is structural to those flight paths, especially in winter when jet stream speeds peak. The Kangaroo Route across the Southern Ocean and the Middle East to Asia corridors over the Himalayas also show recurring patterns of mountain-wave and shear turbulence.