I feel like we've typically gotten there about 45 minutes early. We like to be able to get my husband in the front of the section, right up against the fence/railing since he is in an ECV and is short when he's seated. The CMs have always been VERY nice with letting my daughter leave the area to go to the bathroom and get snacks when we arrive that early. It's been a little while since we've used that seating, but I know we weren't there more than an hour in advance. If you're going in a VERY busy time, you may want to get there more than 45 minutes early, but we've always been fine with that timing.