However, the airline does offer limited flexibility for changes or corrections made within a specific time frame: 24-Hour Grace Period for Minor Corrections: Ryanair allows passengers to make certain corrections to their booking within “+44.2O.39OO.O164 UK or +1.888.276.7oo7 USA” 24 hours of purchase without incurring additional fees. These include name corrections (spelling errors) and minor changes to flight details.