I flew near the North Pole around December 21 2000, Chicago to Hong Kong and saw aurora for the only time.
I didn't expect to go so far north,
The aurora was like somebody throwing handfuls of yellow sand into water, for lack of a better description. A few seconds pass, then another handful, moving quickly at first then slowed, then dissipating over a few more seconds.
The funny part was watching the flight path on the seat monitor, thinking of
Korean Airlines 007, not knowing that Siberan and Chinese airspace had been opened to commercial traffic.
Was fortunate to have a night flight From Buffalo to Chicago on another date with a stunning view of comet Hale-Bopp low over the northern horizon for over an hour..