I don’t rent cars all that often, but when I do, I like do earn shiploads of miles. Like enough miles that the car rental ends up being practically free.
As crazy as it sounds, this is actually possible thanks to a partnership between United and Hertz and a promotion that they’ve been running for a while now. It’s actually so good — at least for high status United flyers — that I don’t know why it doesn’t get talked about more.
This offer has been slated to end several times in the past, but always seems to get a reprieve for a few more months. This time it was extended until May 31, 2017.