Flight changes\booking ahead

Hello!! I am using Turo for the first time on a trip to Denver in June and I am seeing cars I like for a good price. I’m wondering if it’s okay to book now or if I should wait? I’m happy with the pricing for now and I am just a big planner who likes to get things checked off the list. Also I am wondering how Turo handles flight delays/changes. I am picking up from the airport and I know sometimes flights can be unpredictable based off past experience. Thanks 😊