To get in on the sale, you must book your trip by August 3, and the journey must occur between August 22 and February 14, 2018. You'll have to act quick, but the options are bountiful. (At least, compared with sales that are just hopping out of major hubs like New York and Chicago.) The sale touts flights departing from 86 US cities.
The sale doesn't come with the usual budget airline sale asterisks. You get free checked luggage and won't be charged for reserving a seat. Though, sale tickets are marked as non-refundable, and there are a handful of blackout dates around Labor Day, Thanksgiving, Christmas, and New Years. Otherwise, all you have to do is enter your desired dates and select the "Wanna Get Away" price option. You're basically drinking coffee from a styrofoam cup next to an uncomfortably close stranger already.
Milwaukee is lovely in the fall, so get on it. You only have until midnight Thursday to take advantage of these fares.
h/t Don't Waste Your Money
Sign up here for our daily Thrillist email, and get your fix of the best in food/drink/fun.