If you don't mind changing planes, you may want to consider flying to Lincoln (LNK), Lincoln US via Memphis, Chicago on Northwest and American.
Go ahead and book your flight to Lincoln NOW!
In order to get the lowest available airfare, book your flight to Lincoln as early as possible, since the cheapest seats are booked months before departure. If you are flexible depart on the first Tuesday of the month, as there are usually some great deals and discount airline tickets on offer.