Book your business class flights at a discounted price, there are several ways to go about it. One option is to wait for airlines to offer promotions or sales, but this can be unreliable and unpredictable. Another method is to use online travel agencies that specialize in finding cheap flights, such as Expedia, firstflytravel or Kayak. These websites often have tools that allow users to compare prices across multiple airlines and find the best deals. Additionally, travelers can sign up for loyalty programs with specific airlines or credit cards that offer rewards points which can be redeemed towards future purchases, including business class flights. It's important to keep in mind that while these methods may help save money on premium airfare, the cheapest fares may have restrictions or limitations, so it's crucial to read the fine print before booking.