According to this post, and anecdotally from bro’s there, I don’t think big D is much different. I’d be surprised if there are any companies that would let you keep deferring classes indefinitely or otherwise give you 6-12-18 months flexibility on a CJO/start timeline since you likely indicated your availability date on airlineapps as now/soon. JetBlue lets you defer once...I’m not sure what the max timeframe is, but I know you can defer once for a decent chunk of time, not just for one class. I had to defer (regret it now) and it ended up being 2 months/4 classes. I’ve heard of people deferring longer, but only once. I don’t think that’s unique to jetblue.