Pick a color that is widely available. Certain colors may be more available during certain seasons. If the wedding is being held during December, red and green may be easier to find and less expensive than shades associated with spring. If the bride prefers a specific color, ask if you can choose a more widely-available shade of that color.
Research simpler designs. A plain bridesmaid dress with few details and a simple shape can be much cheaper than a more elaborate choice. Look for styles that have fewer parts and draw on standard dress shapes such as an A-line or drop waist. A dress with less detail will be less expensive.
Buy dresses on line. On line retailers often have a selection of bridesmaids dresses in wide variety of colors and fabrics. Purchasing dresses on line can be much cheaper than buying them at a bridal salon. If you do, look carefully at the site before buying anything. Make sure that the web site is legitimate.
Purchase dresses at thrift stores and consignment stores. Some thrift stores receive merchandise from high-end stores. Even if the dress isn't quite the right length or has minor details you dislike, you can still get it altered for less than price of buying a new bridesmaid dress.
