[01/14/2016 @ 11:09 PM] Fare gone. Removing from deal list.
United has round-trip flights from Houston (IAH) to Madrid, Spain (MAD) starting at $663 with a connection. Flights from January to March 16th. Most flights depart on Sundays. This destination usually prices from $923 to $1500.
Note: Turkish Airlines has flights for $622, but with long layovers and no mileage accrual. We suggest paying a bit extra for the United flights.