American Airlines, Iberia, and Finnair have round-trip flights from Dallas (DFW) to Madrid (MAD) for $514-$548, NONSTOP. Flights October to February. Departures on Monday, Tuesday, Wednesday, and Sunday. 7-day minimum stay required.
This is +$50 more expensive than it was when we mentioned it in a similar deal, last month. There is a good chance that prices drop further from here, but it’s still a good price right now.