Leak In fuel line 97 Chevy cavalier

if thats all it is, it might be an easy fix....remove the bad section 1" or 2 and run a piece of good fuel line with 2 hose clamps on each end...

I have an 05 Cavalier that just started leaking gas by the tank what are some of the common issues and costs to fix something like that? It only leaks when running so my assumption is it somewhere to have pressure to leak