It's not necessary to add an adult to an existing booking as adult tickets can be purchased individually. How do I remove a passenger from a booking and get a refund? If one of the passengers in your booking cannot travel, no action is needed. We cannot remove them from the booking, and no refund will be issued.

Canceling a single passenger from a multi-person booking on Ryanair in 2026 can be tricky because the airline’s digital "Manage Booking" tool often does not allow for partial cancellations. The most effective way is to use the Ryanair Live Chat or contact their Customer Service team directly to "Split the Booking." Once the passenger you wish to cancel is on their own separate booking reference, that specific flight can be cancelled. However, it is important to note that Ryanair tickets are generally non-refundable unless the flight is cancelled by the airline. If you are cancelling because the person simply cannot go, you will not receive a refund for the fare, but you may be able to claim back the government taxes—though Ryanair often charges an "Administrative Fee" for this that can be higher than the taxes themselves. In 2026, most travelers find it easier to simply let the person "no-show," as there is no penalty for an empty seat, rather than navigating the bureaucracy of a partial cancellation.