Originally Posted by SCLflyer

Add this script as a bookmark and run it once you've reached fare display page on ITA.. will show you additional links on the right..including priceline.

javascript:var scr=document.createElement('script');scr.src='http s://rawgit.com/SteppoFF/ita-matrix-powertools/master/script_minified.js';document.body.appendChild(scr) ;