"MJA" wrote:

[London to Slough]

Isn't this one of the routes on which season tickets are more
expensive than 5 daily tickets?

I only have NFM92 to hand, so prices will have gone up in the
intervening years, but the relative differences would still be the
same:

London Terminals to Slough:
SDR £7.40
7D £46.20

but there is a saving in the other direction:

Slough to London Terminals:
SDR £11.50
7D £46.20

It may be worth checking the current NFM CD, which I don't have
available. A season ticket is not the best choice when it is priced
for the busiest direction of travel, and you want to travel against
the flow.

No need for the NFM / Avantix CD-ROM, all the fares can be found on the
online booking sites.

London Terminals to Slough
Anytime Return £11.90

Slough to London Terminals
Anytime Return £13.50

7-day season between the two £53.00

So the season is still cheaper. (Obviously this comparison doesn't take into
account the Travelcard element.)

Nonetheless your point about checking that is a good one - I think SWT has a
number of such examples.