Board Thread:Spoilers/@comment-26164766-20160430202500/@comment-27794543-20191227062441

Perhaps the most notable The 100 convention coming up is Unity Days 2020 happening next month. Due to it being located in the same city that the series is filmed, they're able to get a lot of cast members plus have surprise cast members showing up. Last year they also had crew displaying some of the props used on the show.

Here's a list of upcoming cons and this twitter account may also be helpful.