In message , at
11:18:56 on Mon, 2 Apr 2012, Neil Williams
remarked:
If that were the case you'd find the prices slowly increasing as
time went
by and more people booked.

That is merely one pricing model. Another is to charge everyone the
same (higher) prices at times of known high demand, and if you end up
with a few spare dump them for a few quid. That model might be more
profitable in some cases.

Budget airlines tend to use a combination of both models to some extent
but leaning toward the first.

Budget airlines can also trim their supply much more easily than hotels
can. So there's loads of extra flights to relevant places during the ski
season, and yet the prices are still very high because they know people
simply "have to" go skiing at particular times.
--
Roland Perry