How can I pay for my flights? There’s loads of ways to pay for your
Ryanair flights.
We accept PayPal, American Express cards, Visa, Mastercard, Apple Visa
and Apple Mastercard credit cards and the following debit cards Visa
Connect, Visa Electron, Mastercard Prepaid, Visa Delta.
Payments made by Apple Visa and Apple Mastercard will only be accepted
on our mobile app at present. For customers in Germany ONLY, SEPA
direct debit payments can be accepted up to 10 days prior to the
flight departure.
Bookings paid for by PayPal, American Express, credit cards or a
Mastercard Prepaid card will incur a fee of 2% of the total
transaction value.
No credit card fee applies when paying with a debit card or SEPA bank
transfer (Germany only).
https://www.ryanair.com/gb/en/useful-info/help-centre/faq-overview/Making-payment#0-2