From Longman Dictionary of Contemporary Englishoutboundout‧bound /ˈaʊtbaʊnd/ adjective LEAVE A PLACEmoving away from you or away from a town, country etc OPP inbound outbound traffic the outbound flight
Examples from the Corpus
outbound• outbound planesFrom Longman Business Dictionaryoutboundout‧bound /ˈaʊtbaʊnd/ adjective [only before a noun]TRAVEL outbound traffic, goods, flights etc are ones leaving a countryThe outbound tourist flow from the country rose 14% last year. 