get itchy feet
US /ɡɛt ˈɪtʃi fiːt/
UK /ɡɛt ˈɪtʃi fiːt/

1.
to start to want to travel or move to a different place; to feel restless and want a change
:
•
After a few years in the same job, he started to get itchy feet and looked for new opportunities.
•
She always gets itchy feet if she stays in one place for too long.