RyanairChanging a Ryanair Ticket and Fees
If you book tickets directly through the Ryanair website and make a minor typo in the names, you have 48 hours (from the time of booking) to correct them. You can correct up to 3 characters per name for free. After this period, changes will incur a fee.
If you want to change the date or route of your flight, you can do so up to 2.5 hours before the scheduled departure. You must pay a fee for changes. This fee is calculated per person and one-way flight and varies depending on the season. Changes can be made in the manage booking section or by contacting the reservation center. You can find an overview of all fees here.