On the Symfony blog they've made the announcement about the latest conference in their SymfonyLive series - Symfony Live USA 2018 - happening October 9th through 12th in San Francisco.

Never been at a SymfonyLive conference before? Join us at the SymfonyLive USA: it is a 4-day event, the only one dedicated to Symfony in the USA, where you can learn all the latest news about Symfony.

[...] The Call for Papers is still open for a few days, if you have any best practices, experience, tips, use case to share with the US Symfony community, think about submitting a talk proposal for the conference.

The conference also includes workshops, not just regular sessions showing how to get up and running with Symfony, extending the framework, best practices, and mastering design patterns. You can also pick up a ticket if you'd like to attend. Early Bird pricing ends July 8th (so hurry!)