In this case I'm referring to online magazines. Blogs I suppose they are called, by people representing themselves to be experts in the ins and outs of air travel.
All of them I have read so far seem to parrot the same phrase "If your airline cancels your flight, you are entitled to a refund. You are not required to accept a voucher."
I think they are wrong. Reading their Conditions of Carriage, I think they can do pretty much whatever they choose to keep your money.
They typically state in their article something to the effect that *"DOT regulations require .....", but nobody actually cites the DOT regulation in question or provides a link to it.
While DOT has a fairly comprehensive site regarding flyers rights, nowhere on it do I find reference to airlines being required to provide a refund instead of a voucher in case of a canceled flight.
If anyone has a link to the actual DOT regulation the bloggers are referring to I would much appreciate it being posted, but I strongly suspect it doesn't exist.
In my case, AA has changed my return flight from CDG to DFW to an earlier flight (exactly** 4 hours earlier, thus providing grounds to argue that the flight wasn't actually cancelled but rescheduled)**
The rescheduled flight (which is a different flight number, different airplane, does not have seats which match the seat numbers I was originally ticketed for, does not even have the upgraded *class** seat I originally purchased, and does not appear to have two seats for my wife and I together)*
Still, according to American Airlines word smithing, this appears to be within their guidelines for declaring it rescheduling rather than canceling.