I get the same thing (not sure to what percent level) and LOTS of times the price after I click through is not what Google listed by the link. My solution so f

I get the same thing (not sure to what percent level) and LOTS of times the price after I click through is not what Google listed by the link. My solution so far is to search for broad prices for my approximate dates on Google, and when I see something promising open a new tab and go straight to the airline's site where I search for an actual offer for a specific flight. I've found Google Flights super useful this way, though I guess they make less money on me than they could.