Air Canada has cheap airfare from Houston (IAH) to Istanbul, Turkey (IST). Round-trip flights with a short layover in Toronto (YYZ) are $652.
[08/11/2014 @ 2:58 PM] Air Canada is now offering flights for $707 (was $664). Good enough to be deal worthy. Re-added to active list.
[12/01/2014 @ 12:20 AM] Price has dropped to $589.
[12/04/2014 @ 4:05 PM] Price has now increased to $652.
[02/16/2015 @ 5:15 PM] Removed. Old deal.