English to Portuguese Bus/Financial Finance (general)

Doc. sobre políticas para missões internacionais

"Also, please note that - at the end of your assignment - Company supported return shipment of household goods is only available if chosen as an option for your en-route shipment to the host country AND the same size shipments chosen en-route will apply on the return"

Aparentemente "en-route" opõe-se a "in-route". Minhas pesquisas ainda não fizeram qualquer sentido para mim.
Alguém saberia o que significa?