Yes, you can watch Amazon Prime Video on a plane, but for a "seamless" experience in 2026, you should download your content for offline viewing before you depart. The Prime Video app for iOS, Android, and Fire tablets allows you to "cache" movies and TV shows directly to your device's storage, ensuring you can watch them without an internet connection. While many modern aircraft offer high-speed inflight Wi-Fi, it is often not fast or stable enough for consistent high-definition streaming, and some airlines block high-bandwidth services like Prime Video or Netflix to preserve network performance for all passengers. If you choose to rely on the plane's Wi-Fi, you will likely encounter significant buffering or be forced to pay a "Premium" connectivity fee. Additionally, many airlines now offer their own in-seat entertainment systems that may include a selection of Prime Original content through specific partnership deals, but bringing your own pre-downloaded library on a tablet remains the most reliable "pro" strategy for long-haul flights.