Elite status from Frontier Airlines is pretty weak. I recently earned it.
Basically, you get to select your seat and carry on a bag for free.
It’s great that you can choose any available “Stretch” seat at check-in, but if you’re traveling with someone, you have to shell out up to $75 bucks for them to sit with you in Stretch.
Frontier is one of the cheapest elite statuses to earn, requiring only 20K flown miles. With dirt cheap fares, this could be very easy (if you can stand Frontier).