This price is available for flights departing on Fridays, and returning on Sundays, on a few weekends in January and February. Longer weekends and other days of the week are also available for this price during the winter months.
You'll find similar fares on United and Frontier, but beware of extra baggage fees as those airlines only include a small personal item in the lowest fares. Southwest includes a normal carry-on bag, two free checked bags, and has no change fees. For more of Southwest's perks, read How to Fly Southwest (And Get the Seat You Want).
I found seats on Southwest departing Denver DEN on Friday, January 25, returning from Kansas City MCI on Sunday, January 27.
Need a room in Kansas City? Here's what's available for the mentioned weekend dates on Hotelwatchdog.
For more weekend travel deals from your city, make sure to have a look at our new and improved Weekender search tool.