Yes, under EU261 regulations, Ryanair compensation is strictly calculated per person, not per booking or per ticket. If a family of four is traveling on a single booking reference and their flight is cancelled or delayed by more than three hours for a reason within the airline's control, each individual passenger (including children) is entitled to the full compensation amount, which typically ranges from €250 to €600 depending on the flight distance. This is a crucial distinction, as a single booking of four people could result in a total payout of €1,000 or more. The only exception is for infants traveling on a lap for a small flat fee, as they may not be eligible for the full cash amount since they did not pay a full fare. It is a high-fidelity requirement that the airline provides each affected passenger with a written notice of their rights, and you should ensure that you file claims for every member of your party individually or list them all clearly in your collective claim to the airline.