One of the factors that to take into account is the actual duration
between the outbound and return flights when trying to
buy cheap flight tickets. No airline is
going to reveal the exact algorithms into their price
structure. If they did then this will result in flights
being overbooked one day and empty the next. Though
there are steps that cunning passengers can do to get
the price of their ticket down to a level where you know
you are getting a pretty good deal.
I have done many hours of
research into how the airline price their flights and one of these
is definitely the length of period between your
outbound and return flight days. You may have already
encountered this already if you wanted to try
and book a weekend away only to find that the
price of the cheap flight ticket are very high
because you are coming home after only a few
days and the return happens to fall on a Sunday. If you can be flexible
with the return journey and fly back on a Tuesday
instead of a Sunday then the cost of the ticket in most
cases will be much lower.The old excuse was that
they had to do the stopover to simply refuel. With the
modern aircraft this is not the case. They can fly
12-hour + long haul without any stopovers with plenty of
fuel left over.