Sierra Trading Post offers a wide selection of Fishing Fly 12-Packs for $7.96 each. (Sort by "Lowest Price" to view the deals.) Plus, coupon code "STSD3114" cuts the price to $5.97 and bags free shipping. That's $0.50 per fly, $4 off list price, and the best deal we've seen on this quantity of flies. Note that available sizes may be limited.