In the 2013 European election, Šuica was elected Member of the European Parliament. She was sworn in on 1 July 2013, after Croatia joined the European Union. She was re-elected MEP following the 2014 European election, placing 2nd on the HDZ list. She served as one of the deputy chairs of the EP's Delegation for relations with Bosnia and Herzegovina, and Kosovo (DSEE), as well as taking part in various committees such as ENVI, AFET, TRAN, FEMM and the Delegation for relations with the United States (D-US).