Making a Flow Available for Classic Users

We are not yet in Lightning. I'm developing a simple data entry flow with a lot of validation, etc. My question is how to make this available to my (internal) Salesforce users? I created a web tab on my Navigation, but I don't know what the url is supposed to be. 

Or, is there a better way to make the flow available? I know how to do it on a Lighting record page, but we aren't ready for that yet (but it sure is easier).

Thanks.