easyJet offers them from 8 pounds, and in the past they haven’t been much more than that in practice (but might have changed now) https://www.easyjet.com/en/terms-and-conditions/fees
easyJet offers them from 8 pounds, and in the past they haven’t been much more than that in practice (but might have changed now) https://www.easyjet.com/en/terms-and-conditions/fees