With the Southwest Airlines Companion Pass, you are allowed to change your designated companion up to three times per calendar year. This means you can have a total of four different companions over the course of a year (the original one plus three changes). In 2026, this rule remains a high-value perk for frequent travelers. To make a change, you must first ensure that any existing reservations for your current companion are cancelled. Once the change is processed—either online or by calling Southwest—your new companion is eligible to fly with you immediately, provided there is a seat available on your flight. A "pro tip" for maximizing this is that the "first designation" of the year often doesn't count as one of your three changes if you haven't yet named a companion for that specific year. Between the two years that a typical Companion Pass is valid, you could technically utilize up to eight different companions, making it one of the most flexible "plus-one" programs in the travel industry for families or groups of friends.