Restricted fare, a term commonly used in the travel industry, refers to a ticket that has certain conditions attached to it. Such conditions may include limitations on changes, refunds, and cancellations, as well as restrictions on routing and travel dates. Synonyms for restricted fare include non-refundable, advance purchase, economy class, and promotional fare. These fares typically offer a lower price than unrestricted fares but come with more constraints. Other related terms include blackout dates, minimum stay requirements, and maximum stay limitations. It's important to read the terms and conditions carefully before purchasing a restricted fare to avoid unexpected fees and restrictions.