Originally Posted by
JimInOhio
That suggest we shouldn't buy tickets too far in advance. Conceivably, one can book a flight one year out and not be able to change it to a later date.
Technically, yes; practically no. Sales are generally only open ~330 days in advance so you have a built in buffer of about 30 days (and the chances of a schedule change happening that would open up wider waiver options while not guaranteed but quite high (heck, I had a ticket I bought two weeks ago for travel two weeks from today go into the 'we screwed up the schedule so badly we're going to proactively tell you you're eligible for a refund' mode [oddly, it was a refundable fare to begin with

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