Originally Posted by
UAmilehighflyer
Any expert tips or tricks on booking on UA/SQ?
It can't be done -- at least, not without spending a
lot of money. (Also, there aren't going to be any upgrade options available for you either). Singapore (SQ) does not allow their discount fares to be plated on other carriers' tickets. If you want to fly SQ, you have to buy your ticket from SQ. If you need PQDs, SQ is not an option.