Brooks Brothers takes up to 70% offclearance apparel, shoes, and accessories. (Prices are as marked.) Shipping starts at $5.95, although orders of $250 or more qualify for free shipping. Sizes and stock may be limited in some styles. A couple of best bets, both with $10.95 for shipping:
The Children's Place offers its Children's Place Boys' Basic Straight Jeans in Dry Indigo Wash for $7.80 with free shipping. That's $12 off list and the lowest price we could find. They're available in most boys' sizes 4 to 18.