If you're wondering when to book Thanksgiving flights, the short version is sooner than you'd like, and probably now rather than later. Thanksgiving is a fixed-demand holiday: everyone wants the same handful of days, the seats don't multiply to meet them, and the fare knows it. This is the opposite of a normal trip where a good fare might wander down for a while before you commit. Holiday pricing mostly moves one direction as the date closes in, and that direction is up.
Book the dates, fly the holiday itself
The expensive days are the ones everyone treats as travel days: the Wednesday before Thanksgiving out, and the Sunday after back. Those two are the peak of the peak, and they price like it. The quieter, cheaper option is to fly on the holiday itself. A Thursday-morning departure out and a Monday or Tuesday return usually comes in well under the Wednesday-Sunday crush, because far fewer people are willing to spend Thanksgiving Day on a plane. It's the same logic behind the cheapest days to fly the rest of the year: the days nobody wants are the ones that stay affordable.
So the move is to decide the trip first. Pin the dates that actually work for your family, then look at the fare, rather than letting a slightly cheaper day pull you into a schedule that ruins the reason you're traveling. If Thursday out and Monday back fits, you're in luck, because that's often the cheaper shape anyway.
Don't hold out for a last-minute deal
The instinct to wait is strong, and around the holidays it's almost always wrong. The classic last-minute fire sale, where an airline dumps empty seats cheap right before departure, barely happens on ordinary routes anymore, and it essentially never happens over Thanksgiving. The flights are full. There's no reason to discount a seat someone else will happily pay more for next week. We've written before about how flight prices rarely drop last minute, and the holiday version of that is even more lopsided.
That doesn't mean you should panic-book the first number you see. It means the downside of waiting is real and the upside is thin, so the smart play is to start watching the exact dates you need well ahead of time and grab a fair fare when it shows up. That's the job we take off your plate: point Flight Watcher at your Thanksgiving dates now, and you'll see the three best fares each morning instead of refreshing tabs in November and hoping a discount arrives that the airline stopped handing out.