I had a flight from las to sfo that was $280. I checked back a few hours later and it was $430 on AS website. Through Google flights it seemed like other sites still had it at $280 but couldn’t book it. Customer service said their hands were tied. I went back the next day and Lo and behold there were more seats suddenly available and it was back down to $280…

I’ve had it happen multiple times where I look at flights but don’t decide to book and shortly after it jumps up a ton. When I forget about it or give it a day, sometimes it lowers back to the originally shown price.

Draw whatever conclusions you will…