How can I find flights that let me see the 2019 solar eclipse from a plane?

For the August 21 total solar eclipse Alaska Airlines offered a flight that was, I guess, specifically intended for eclipse viewing:

I guess it departed from PDX. Did it also land in PDX as well? Were passengers on both sides of the plane able to see it?

How did people find out about this flight? How might I find out similar flights for other eclipses, like the July 2, 2019 eclipse?

airlines eclipses

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