Cheap Flights: Dallas to Lisbon $553-$567 r/t [October-February] - American Airlines / Aer Lingus

A slight price drop from last week, was $596. American Airlines and Aer Lingus have round-trip flights from Dallas (DFW) to Lisbon (LIS) for $553-$567 with a connection. Flights October to February. Departures on Monday, Tuesday, Wednesday, and Sunday. 7-day minimum stay required.