The movie "How to Train Your Dragon 2" can currently be streamed on Amazon Prime Video, including Amazon Prime Video with Ads. It is also available to buy or rent on platforms like Amazon Video, Apple TV, and Fandango At Home. There are no free streaming options at the moment, so access is mainly through subscription streaming or digital purchase/rental.

For viewers in certain regions like the UK, the second movie is typically available for rent or purchase rather than included in subscription streaming. The recommended watching order of the animated film series is the original How to Train Your Dragon (2010), followed by How to Train Your Dragon 2 (2014), and then How to Train Your Dragon: The Hidden World (2019).