The Allegiant Air name change policy permits travelers to alter up to four letters on the first/middle/surname and change a name under the legal compulsion like marriage or divorce. Also, the name change policy requires passengers to submit valid legal documents like marriage/divorce agreements, passports, or government-approved IDs. Furthermore, you can move to the website or reach out to the Allegiant Air customer support helpdesk. Alternatively, get in touch with a flight expert at +1-800-865-1848 for prompt assistance.