Originally Posted by
fumje
But to clarify my original question—I was interpreting mherdeg's final paragraph as meaning that although no CDG-EWR discount economy fares were offered, searching for a CDG-HNL with stopover in EWR might allow purchase of the CDG-EWR in a lower-priced fare bucket. Is that not the case? Or is there just no straightforward way to figure out the latter knowing only knowing CDG-EWR fare rules?
Sure, but that's a different question. In that circumstance, the K is not offered for sale CDG-EWR. It's offered CDG-HNL, and may allow a stopover in EWR, ORD, SFO, etc. But that's not a CDG-EWR fare.
The only easy way to find that kind of fare is to use a site like Skiplagged that searches for hidden city itineraries. Because that's essentially hidden city logic.