Originally Posted by
yyzgigi
Some corporate travel policies require Y fares regardless of price, but agree doesn't make sense for small incremental cost difference on many routes.
Regarding success I would expect many that purchase PY would be trying to upgrade to J which should provide some opportunities even on full flights.
Sounds like it's time to start a corporate travel service that leverages this lameness. Seems easy with basic data science techniques and access to data.