Arby’s Coupon: Reel Big Fillet Fish Sandwich and Fries Only $2.99! February 5, 2014 by Rebekah The links in the post below may be affiliate links. Read the full disclosure.Print Email If you are a fan of fish sandwiches, we have a nice Arby’s coupon for you! Through February 11th you can get a Reel Big Fillet Fish Sandwich & Small Fries for just $2.99. You’ll just need to enter your name and print your coupon.