Pick a flight and find out which side of the cabin the sun will be shining into, and how hard.

How it works

The plane is assumed to fly the shortest great-circle route at constant speed, and left and right are as seen facing forward in the cabin. At each moment along the way the tool computes where the sun is and asks how squarely it shines through the windows on each side. A side scores 100% when the sun is level with the horizon and directly abeam, so that it shines straight in through the window. It scores 0% when the sun is on the other side of the plane, directly overhead, or below the horizon.

Times are entered in each airport's local time by default, the way they appear on a ticket. Things the model ignores: real routings that bend around weather and jet streams, haze and cloud, the sun's brightness dropping near the horizon, and the fact that window shades exist.