Infants aged up to 7 days cannot be accepted for travel on any Ryanair flights. Infants (aged 8 days to 23 months inclusive) travelling with Ryanair must be accompanied by an adult aged 16 or over (one infant per adult).

Excellent question. For Ryanair, the key age is 12 years old.

Here’s a detailed breakdown of Ryanair’s policy for children and infants:

Infants (Under 2 years old on the date of travel)

• Ticket: They travel on an Infant Fare, which is typically just taxes and fees (around €25/£25 one-way). They do not get their own seat and must sit on an adult’s lap for the entire flight.
• Limit: Only one infant per adult (16 years or older) is permitted.
• Identification: A valid passport (or national ID card on domestic flights) is required, even for newborns.
• Luggage: They are not entitled to a free carry-on bag, but you can check a bag for them (for a fee) or bring a small baby bag.

Children (Aged 2 to 11 years on the date of travel)

• Ticket: They must have their own paid seat at the standard child fare. This fare includes a small cabin bag and a checked bag allowance (if selected during booking).
• Supervision: They must be accompanied by an adult (16+). One adult can accompany up to four children, but only one of those children can be under 5 years old.
• Seating: Ryanair does not guarantee seating together. If you want to ensure your family sits together, you must pay to reserve seats in advance.

Young Adults (Aged 12 to 15 years)

• Ticket: They are charged the standard adult fare.