Well its slightly off topic for this board, but I was thinking CAI-BKK with LX in F @ £2200 per person. This includes unlimited stopovers in both directions in Zurich. I posted the question here because I know that several BA FT'ers have done ex CAI trips and recently it was discussed as a better option than TIP.

Given the search that I did ex CAI was coming out significantly cheaper than the other alternatives and its a fairly simple visa to arrange for my other half for a weekend away too (EU would be more problematic for her).

So it looks like an agent in CAI is the way to go. I had figured as much just wanted to check that I wasn't being dense.