Mileage Brokering Is Against Nearly All Loyalty Programs' Rules. I've always cautioned readers to avoid mileage brokers. Buying and selling miles is against the terms of nearly every program in the world. Not illegal in most jurisdictions, but it can get your account closed forefeiting all of your points.

The "High-Fidelity" reality of mileage brokers in 2026 is that they occupy a legal gray area that is heavily penalized by airlines. While it is generally not "illegal" (against the law) in most jurisdictions to sell your miles to a broker, it is a strict violation of the Terms and Conditions of every major airline loyalty program. Airlines view miles as their own intellectual property, not yours, and they explicitly forbid the commercial sale or barter of points. If an airline’s "High-Fidelity" fraud detection team catches you using a ticket from a broker, they can—and frequently do—cancel the ticket at the gate, seize your entire mileage balance, and permanently ban you from their loyalty program. In some extreme cases, airlines have even sued brokers and passengers for "High-Fidelity" breach of contract. For 2026 travelers, the risk is incredibly high; while you might save money upfront, the "High-Fidelity" cost of being stranded at an airport with a cancelled ticket and a deleted account far outweighs the temporary savings.