I looked at the redemption table and thought that it was 25000+£140 for a return in economy for zone 1 to zone 3 and that for business you multiplied the miles and cash by 1.5. Is this not the case? I may have made a newbie mistake!
That's correct. 25,000 + £140 in economy or 37,500 + £210 in Business
return per passenger. Hence my comment that it costs 37,500 miles + cash etc
for two passengers one way...
If there are two of you wanting to go one way it's 37,500 miles. If the two of you want return tickets, that's 75,000 miles (+ cash and taxes).