Biarritz Olympique
In May 2017, Burton signed and played for Biarritz Olympique under head coach Gonzalo Quesada which saw him adapt his game and use his attacking flair with northern hemisphere game management. Burton played 42 games in two seasons 2017-18 and 2018–19 at flyhalf for Biarritz Olympique. He steered Biarritz Olympique to a Quarter Final finish verse Grenoble in May 2018.