"David A Stocks" wrote in message
...

If you have a Network Railcard there is an off-peak day return available
for around £11.00, failing that you might be able to get single AP tix for
booked trains from £3.75 each way, but these can be very restrictive.

The OP is travelling midweek. The Network Card minimum fare is now £13 on
weekdays...

Paul S