Originally Posted by nutwpinut

It does sound like something you can get. I have gotten ~2.4k for RT YYZ-SIN through similar routing. YYZ-LHR-HEL-SIN. Russia should be cheaper.

Have you tried directly booking with AY? That's what I did when it was time to book.

Browsing through Google Flights, I have found cheaper prices for June trips, but it isn't for every date. Are you locked into your date? I saw one that went all the way to AY pricing at 2402.22 CAD ~ $2,000 USD June 14-20.