Fare Hunting

A friend has sent along a link to a Wired article that points to a couple of websites that purport to find low airplane fares. Flyspy finds cheap fares on Northwest flights originating in Minneapolis. Farecast now searches flights from 55 American cities and also claims to predict if prices will increase or decrease in the future. In that way the site helps you answer that often lingering question: "Do I buy now or do I buy later?"