Fortunately, this is something that rarely happens to me, so I'm not sure if this is okay or not.

I was originally scheduled to fly on one airline, but due to a long delay, they booked me on another airline. So, I'm wondering -- can I claim miles on both airlines? Is that legal? Since the first airline screwed up, don't they kind of owe me?

Or, would that be against the rules? I really don't know -- who has time to read the fine print -- and I don't want to get in trouble for 1500 miles. I'm sitting on hundreds of thousands of them, so putting those at risk for 1500 miles wouldn't make sense.