Earlier quoted context omitted.
Also curious, since I imagine airlines try to cancel subsequent flights if you didn’t get on the initial flight to ensure someone gets in that seat (at a higher price)
He isn't skipping any flights. He presumably bought a one-way ticket to XYZ years ago, and since then each year he books an XYS->SFO->XYZ roundtrip for a year long "visit" to SFO before returning "home" to XYZ for a little bit before booking another round trip for another year long "visit" back in SFO, and so on.
> returning "home" to XYZ for a little bit before booking another
More likely, "booking another" actually happens before landing in XYZ, closer to 6 months out (seeking the best price), but otherwise you've got it.