Alaska Airlines offers a companion fare option for its co-branded credit card holders. With the help of these features, travelers can book a second ticket for a round trip at $122. Moreover, there are several ways to book an Alaska Airlines Companion Fare. Passengers can book a ticket with these fares either by visiting the official website of Alaska Airlines or through their mobile app. For additional details about Companion Fare, contact the customer service of the airline or follow the link shared.