In delta’s case that is correct. There are two left at that price (in that fare bucket). After they sell those seats, they will be selling from a higher fare bucket and the price will go up
Maybe but the pricing charts I've seen show fairs rising and falling.
That may be the case at the moment but if they shift those buckets I think it is also untrue unless it says 2 left.... unless we just change the price later.
buckets (a.k.a. fare classes) can change in price. Also, some airlines will not sell certain fare classes on certain days or release all of the fare class seats at once.
The airline definitely isn’t lying when they say there are a certain amount left at that price. I’ve seen the price change at those exact amounts when booking tickets for groups of people individually.
That may be the case at the moment but if they shift those buckets I think it is also untrue unless it says 2 left.... unless we just change the price later.