What does 4S9 mean in Airport Codes?

This page is about the meanings of the acronym/abbreviation/shorthand 4S9 in the Regional field in general and in the Airport Codes terminology in particular.

Portland-Mulino Airport, Portland, Oregon USA

Regional » Airport Codes


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"4S9." Abbreviations.com. STANDS4 LLC, 2016. Web. 27 May 2016. <http://www.abbreviations.com/term/372705>.