I saw the SIN round trip thing in my searching, started building there. It's pretty simple from YVR, but wanted to get a good price + 2 destinations I wanted to visit. TPE-RGN was where I landed, but flights between the two were like $250 CAD, which was the same reason I balked at SIN-PEK, hadn't thought of TSN, but even $117 USD + cost to PEK and spending a night (probably) in PEK I think I'm gonna end up with BKK-RGN. Good prices all around though, Air China isn't the greatest, but on the right days/routes you can find L fares OJ return from like $625ish CAD and those will credit 100% to AV, the crediting for CA flights is odd, some partners give them like 30-50% kinda across the board, then there's AV who give 100% on some and only 25% on others all within the lower bracket of fares.