I am trying to determine just what the actual COC entail.
Delta spells out 90 minutes
AA: Very Vague and no time limit.

Involuntary refunds
In the event the refund is required because of American's failure to operate on schedule or refusal to transport, the following refund will be made directly to you.

If the ticket is totally unused, the full amount paid (with no service charge or refund penalty), or
If the ticket is partially used, the applicable fare for the unused segment(s)
American shall not be obligated to refund any portion(s) of a ticket which does not reflect a confirmed reservation on an American flight involved in a schedule irregularity, unless such ticket was issued by American..

I am going through UA COC but I have to wait on my law degree from Loyola to decipher it out...

Needless to say, I do take a lot of last minute trips if I have the free time on a whim. That last ticket I bought the day before the flight and while not top dollar it wasn't bargain basement either.

I am not asking for anything else, but I don't think its asking too much... If the plane is over an hour late to get to say no thanks, Ill fly another day? Give me a voucher or refund. It's not like this is their first rodeo trying to get us off the ground and I also don't think every single time I want to go do something, I need to fly a day early. You don't leave an extra hour or two early to go to the airport for every flight do you?

And they leave the COC so vague, other than DL, or so it seems. The terms are so vague that it really isn't a contract. it's a challenge.

Obviously I am in the minority here, so I'll drop it.