Use of car seat on international flight

Hi Hannah, Thank you for your enquiry, the Continuum seat is approved for use by both of these airlines as it has the “S” safety sticker and is approved for use on an airplane. There is more details in the manual available under the download instructions tab on the product page.We hope this helps. ?For further information on this or any of our other products available, if you follow the link https://www.babyonthemove.co.nz/store-locations/ this will take you to our online store finder. Here you can find contact details for your nearest Baby On The Move Store where one of our team experts will be happy to assist you in your product search and help answer any further questions you may have. We hope this has helped with your query.