Passengers and Fugitives: can they be cashed in at a location, like goods?
There is no way in either the base game or any of the expansions to "sell" fugitive or passengers. The FAQ describes the only way to get rid of them:


  You may drop Fugitives and Passengers off in any sector with a Planet (you can’t toss them out the air-lock in deep space). This does not use an Action and can be done during another Action, on your turn.


Thematically this makes sense. Goods left over from a failed job or found from salvage still have value to others aside from their intended recipient. People however want to get to a certain place and won't be willing to pay if they wound up somewhere else (would you pay if an airline dropped you off at the wrong city?).