Some cards offer free companion tickets as part of a sign - up bonus, others (usually of the $ 400 - plus annual fee variety) offer it as an annual bonus. (creditcards.com)
You can get free companion airfare if the package includes at least four hotel nights or at least a seven - day car rental. (rewardexpert.com)
Another thing to consider is that the value of a card can increase if it offers free companion tickets. (mybanktracker.com)