Airlines are increasingly using vouchers over cash — here are the secrets for how to use them (AAL, UAL, DAL, LUV)
As a result, these airlines can sell tickets on flights operated by their alliance partners. For instance, United, as a member of Star Alliance, routinely sells tickets on its website for flights operated by alliance partner Lufthansa. “Electronic travel certificates (vouchers) can be used for travel on United and United Express-operated flights,” a United spokesman told Business Insider in an email.
Source:: https://finance.yahoo.com/news/airlines-increasingly-using-vouchers-over-215737453.html
