Originally Posted by ylwae

I've flown in both directions. On the one occasion I flew LH, it was outbound via YVR and inbound via YYC. The total travel time should be quite a bit shorter via FRA than via Asia, as you'll be going YYC-YVR-SIN-BOM or YYC-LAX/SFO-SIN-BOM, usually with a fair bit of transit time in different airports. However, despite the added time, I prefer flying westward via SIN on SQ (in the past I've also flown to BKK on SQ, then taken TG to BOM).