Vlaicu made his international debut in 2006 as a substitute against
Ukraine. He played for Romania in the
IRB Nations Cup and in their
2007 Rugby World Cup qualifying before appearing for them in the
2007 Rugby World Cup. He played two
Tests at the World Cup as a substitute against both
Scotland and the
All Blacks, scoring a penalty against the latter. He also played at the
2011 Rugby World Cup and the
2015 Rugby World Cup. He reached his 100th cap on 11 March 2017 when Romania played against
Belgium in
Brussels.
Records Vlaicu set a series of records during his career. He is the most-capped Romanian player at international level with 129 caps, as well as the all-time caps leader from what
World Rugby calls an "emerging nation"—defined in men's rugby as those outside of
The Rugby Championship or
Six Nations Championship. When he retired in 2022 he was the sixth leading top point scorer in international rugby, with 1030 points. Florin is also the most prolific point scorer for Romania at the
Rugby World Cup with 28 points scored over three tournaments. On 13 March 2021 Vlaicu surpassed the 1000 point mark, kicking three penalties to help Romania overcome Portugal in the 2021 Rugby Europe Championship.
Retirement Vlaicu announced his retirement from rugby at the end of 2022. ==Honours==