Entering correct passenger details while booking a flight is essential, especially with low-cost carriers like Frontier Airlines where changes can be more restrictive. One of the most critical details is the date of birth (DOB). Even a small mistake can cause check-in issues, security delays, or boarding problems. https://flightinfohub.stck.me/post/1642525/Frontier-Airlines-Change-DOB-Guide-Flight-info-Hub-Online