You can watch Netflix on an international flight through two main methods: downloading for offline use or streaming via in-flight Wi-Fi. The most reliable method is to use the Netflix app on your mobile device (iOS, Android, or Windows tablet) to download shows and movies before you board. Most downloads remain active for 7 to 30 days, though some may expire 48 hours after you first hit play. If your aircraft offers "high-speed" Wi-Fi (often branded as Viasat or Starlink), you can technically stream directly, but this is rarely recommended for an entire flight due to potential buffering and high "streaming-tier" Wi-Fi costs. For the best experience in 2026, savvy travelers download content at home, ensure their app is logged in while still on the ground (to verify licenses), and carry a portable battery pack, as binge-watching can quickly drain a device during a 10-hour transoceanic journey.