Yes, you can absolutely watch Netflix movies on a plane as long as you download them to your mobile device (phone, tablet, or Windows 10/11 laptop) before you board. To do this, open the Netflix app while connected to Wi-Fi and look for the "Download" icon next to your chosen title. Once the download is complete, you can find the movie in the "Downloads" section of the app. During the flight, put your device in airplane mode to save battery and prevent the app from trying to connect to a server. Keep in mind that downloads have expiration dates—some last for only 48 hours after you press play—and not every title on Netflix is available for download due to licensing agreements. It is a good idea to check your "Downloads" tab shortly before leaving for the airport to ensure everything is fully loaded and hasn't expired, as you won't be able to re-download or renew them without a stable internet connection.