0 September 14, 2016 Frontier Airlines : Fares as low as $22 each way Frontier Airlines Today: Fares as low as $22 each way Expires: 9/15/15 Buy Now Tell a friend!SharePinShareTweetEmailFrontier Airlines has fares as low as $22 each way when you buy by 9/15 and fly between 9/17 and 10/31. 0Did you catch these deals?ReThink Coupon : 30% off Sitewide code MBB30Delta Beverages Coupon : 15% off Sitewide code BUDDY15CanvasHQ Coupon : 15% off Sitewide + Free Shipping code BUDDY15