When we open any online market of miles, we generally see an ad from a mileage broker. These guys are the scalpers of the airline industry, offering to buy your miles or sell you a really cheap business or first class ticket. They are not a good person. They will use your miles to get an award ticket for someone else, making a profit on the difference. My advice is to avoid these guys altogether. This will help you to sell miles safely. Issues In Marketing Miles By Using Mileage Brokers :- Marketing miles for earning a profit is not an ethical activity. If the airline company founds you guilty, the airline will void the ticket and shut down the frequent flyer account. That means that if you’re the seller, you’ll lose all your miles. If you’re the buyer, you’ll lose the tickets you just bought on the cheap. You have no idea who is buying your miles and what they are doing with them. The broker has a party on the other side of the tra...