What does OPO mean in Airport Codes?

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

Porto, Portugal

Regional » Airport Codes


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"OPO." Abbreviations.com. STANDS4 LLC, 2015. Web. 30 Jul 2015. <http://www.abbreviations.com/term/28082>.