Synchronized Fireflies 2024 Smoky Mountains. In 2024, the lottery to see the synchronous fireflies in the great smoky mountains national park opens on april 26, at 10 a.m.  — the dates for the 2024 viewings of the famous fireflies in the great smoky mountains national park have been announced.

Lottery winners will be notified on thursday, may 7, 2024;  — every year, in late may and early june, the elkmont fireflies (sometimes also referenced to as sugarlands visitor center fireflies) in the smoky mountains national park.