Non binary gender prefixes have become increasingly controversial over the years. However, that hasn't stopped United Airlines from becoming the first U.S. airline to allow their customers to book flights under a nonbinary gender prefix.
According to a press release sent by United Airlines, passengers will now have the option to identify as Male, Female, Undisclosed, or Unspecified (X) as long as it corresponds with what's indicated on their ID. TSA does requires all passengers to identify their gender prior to their flight, but they will accept nonbinary gender identifications so long as its consistent with what's listed on their IDs. Luckily, several U.S. states have began to offer the option to identify as something other than male or female.
United AIrlines says that they made the decision in hopes of acting a a lead in the industry for LGBT inclusivity. Their Chief Customer Officer, Toby Enqvist, stated
"United is excited to share with our customers, whether they identify along the binary of male or female or not, that we are taking the steps to exhibit our care for them...while also providing additional employee training to make us even more welcoming for all customers and employees."