Ok seem to have got this all wrong sorry.

Ok so my dates are actually as follows. I need to be there for an event on the 29th May not March (sorry), can be a couple of days earlier. Staying for 10 or 11 days.

I would like to travel some other way than WT so could be as follows.

Upgrade with miles + cash to go WT+ both ways
or
Pay for WT+ out and use miles to return CW

I can't seem to get my head round the booking system. If I put in single way fares its looking for nearly £1400 yet the same fare as part of a return is like £341. I don't know if its possible to get a normal fare out and return using miles.

ANy help would be appreciated.

Thanks