[Soliloquy]

Originally Posted by OTW

Yes and no.

While some tickets have an advance purchase incentive, the price doesn't increase because the day gets closer.

Airlines set different fare classes. For United, discounted Economy classes are K, S, T, W, V, Q, H, M (lowest to highest). Full fare Economy's Y, B, E. United First is F, P, A, Z. There are only X amount of space in each fare class. Once the all the inventory in the fare class is sold, the next higher fare class is then up for sale, and so forth.

Also affecting price is whether or not you're traveling in peak/off-peak season or if you're flying on a weekend or weekday.

Well that's just something I noticed the numerous times I've purchased plane tickets! I never knew the reason, I just saw the price increase