Originally Posted by jsloan

There's a good chance that clubord is correct. UA has been extremely proactive about issuing waivers. I've had waivers issued for flights where the weather ended up being perfectly clear.

That said, the answer to your question is yes: if UA cancels the flight, or even delays it significantly (more than a two-hour change in departure or arrival), you can get a full refund to your original form of payment. However, if you do not cancel prior to departure, you're not eligible for a credit at all. I would not push it all the way until "just before the flight is scheduled to depart." I'd recommend cancelling 30-60 minutes prior to departure (the check-in cutoff is T-30).

Originally Posted by clubord

We get worse storms on a daily basis in the afternoons than what Fred is going to bring to Orlando. I wouldn’t be too concerned.