Skyscanner, the travel search engine, is now available as a skill for Alexa, the digital assistant powering the Amazon Echo. You can use Skyscanner on any device that supports Alexa, including the Echo and the most recent version of the Amazon Fire TV.
With the Skyscanner skill enabled, an Echo owner could search for flights using only their voice. Alexa can also suggest flights based on information your provide on upcoming trips, and will provide the best, cheapest option that it can find.
You can add Skyscanner, along with other skills, using Amazon's Alexa app.