As posted by
xliioper in the thread about the ending of AA service to TOL, AA has announced that it is ending all service to ISP and ITH, as well.
https://www.flyertalk.com/forum/34349882-post34.html
This is especially sad news for Ithaca, where Mohawk Airlines (which was bought by Allegheny Airlines, which became USAir, which became US Airways, which now trades as AA) was founded -- as Robinson Airlines -- in the 1940's. Companies that ended up as today's AA have been serving Ithaca for ¾ of a century. What a shame!