CNET: Where to get your flu shot for cheap or free in 2020. “The Center for Disease Control and Prevention (CDC) doesn’t hide the fact that the flu shot isn’t perfect (no vaccine is perfect), but the fact of the matter is that the flu shot does work and it remains the most effective prevention method for influenza virus. In this article, learn about where you can find flu shots for cheap and for free, plus more on why you really need one — and why getting your flu shot is ‘more important than ever’ in 2020.” If you don’t have insurance, but you do have a friend with a Costco card, $19.99 will get you a flu shot there. I got mine last week and it’s the first time I’ve spent significant time in a building since March 11. They did a lot of screening and everybody had masks on.