Update 1: Fare gone.
Update 2: Fare back on!
After playing with kayak.com/explore, I found the following great rates to Istanbul IST, Dublin DUB, and Tel Aviv TLV from Toronto YYZ:
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$603USD Toronto YYZ – Bucharest OTP, round-trip, everything included, flying on Air France, KLM, and/or Alitalia. You can route through Paris CDG, Amsterdam AMS, Milan MXP, or Rome FCO (though it seems like it’s easier to route through CDG or AMS). Can get as cheap as 5.9CPM.