How old is a Senior Citizen? – For travel purposes, a Senior Citizen is someone who will be 60 or over on their return date to the UK. How old is an Adult? – For the purpose of travel, an adult is aged between 13 and 59 years on their return date to the UK. How old is a Child? – For travel purposes, a child is usually aged between 2 and 12 years on their return date to the UK. However, some package holidays allow for child ages up to 16 years old, which will be indicated on our website where relevant. Child prices are only applicable if there are a minimum of two adults in the same room as the child. How old is an Infant? – An infant will be under 2 years old on their return date to the UK. This means, if your infant will turn 2 years old during your holiday, you will need to include them as a child when you make your holiday booking.