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Chasing sunrise and sunset from a plane window

A sunset from 11,000 metres is a different event from a sunset on the ground. You are above the weather, above most of the haze, and looking at the horizon from so high that you can see the terminator - the moving line between day and night - laid out across the Earth. The colours run through bands ground-level sunsets never reach, and on the opposite horizon you can sometimes watch the Belt of Venus and the Earth's own shadow rising. Here is how to actually book yourself into one.

Why altitude changes everything

At cruise altitude the horizon is roughly 370 km away, versus about 5 km at sea level. You see the sun for several minutes longer than observers below you, and the light passes through a longer, cleaner slice of atmosphere - deeper reds, sharper banding, and a visible gradient from orange at the horizon through to dark blue overhead. Cloud decks below you turn into a lit landscape of their own. Photographers call the ground-level golden hour fleeting; from a plane flying west, it can be genuinely endless.

The direction-of-travel effect

The Earth rotates east at up to ~1,670 km/h at the equator; a jet flies at ~900 km/h. Fly west around sunset and you partially cancel the rotation: sunset slows down. At mid-to-high latitudes, where the ground rotates slower, a westbound jet can nearly keep pace and hold the sun on the horizon for an hour or more. Fly east and the opposite happens: the sun sets (or rises) dramatically fast, and on eastbound transatlantic overnights the entire sunrise can unfold in a few compressed, spectacular minutes.

Which departures catch the show

Which side, in one table

These rules bend with the seasons - rise/set points swing tens of degrees between June and December, more at high latitudes. The geometry guide explains why.

Making the most of it

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