Allegiant Airlines permits name modifications under certain conditions. If you’ve misspelled a name or need to correct a minor error, you can do so without a fee. For more substantial changes, like a complete name change, you’ll have to reach out to their customer service, and fees may apply. The process varies depending on the ticket type and timing. To proceed, visit Allegiant’s website or call their support team for personalized help. Have your booking information handy to ensure quick assistance.