The Ultimate Guide to Companion Fares & Companion Passes 
Companion pass, companion certificate, companion fare, or companion ticket. While the terms are much alike, they all carry different definitions as to what constitutes a companion pass or ticket. Some airlines have designed their companion pass as a well thought out feature of their rewards program, worthy of attention and pursuit, while others have turned it into a lazy half-benefit, slipped into the backend of a credit card’s benefits as an afterthought, and offering only marginal value.
British Airways Visa Travel Together Ticket
British Airways and the British Airways Visa Signature® Card offers you a great way to bring along a companion, every calendar year you make $30,000 in purchases on your British Airways Visa Card, you’ll earn a Travel Together Ticket good for two years.