Via Secret Flying, direct round trip flights are available between Chicago and Miami during the month of April for $107 round trip on both American and United.
This fare sale becomes very hot if you have a Chase Ritz-Carlton Visa Infinite or CNB Crystal Visa Infinite and book for two people. One of the benefits of those two Visa Infinite cards (but not the Chase Sapphire Reserve) is a $100 discount on booking 2 or more passengers on a round trip domestic itinerary through the Visa Discount Air portal. The discount can be used an unlimited number of times. See this excellent post that Julian wrote last year for more information on booking this discount. Note that flights must cost more than $100 each before the discount is applied. and you need your first and last name and Visa Infinite number to search.
I just priced out two round trip tickets from Chicago (ORD) to Miami (MIA) on American Airlines from April 5th to April 12th. As you can see, the total for 2 passengers is $112.80:
Flights on United priced exactly the same:
Sample sets of dates that should work include:
Chicago – Miami
Miami – Chicago
There may be more dates available. I’m not sure whether these are bulk fares or not, but they may earn miles on top of the great prices.
HT: Secret Flying