Southwest celebrates its new nonstop service between Chicago and Oklahoma City with a special fare:
- Travel to-or-from Chicago and Oklahoma City: $160 one-way
Book this fare by May 14. Travel from June 3 through Nov. 2, and you have to fly on a Tuesday or Wednesday. Blackout dates: July 3, 4; Sept. 4. See Southwest for more – and see FareCompare for more cheap flights wherever you want to fly.