American Airlines, Iberia, and British Airways, have round-trip flights from Dallas (DFW) to Porto (OPO) for $529 with a connection. Flights October to December. Departures on Tuesday. 7-day minimum stay required.

Note: Carry-on bag is allowed for free on American Airlines, Iberia, and British Airways. You can avoid paying for seat selection by accepting the randomly assigned seat at the gate.

Read More Cheap Flights: Dallas to Porto $529 r/t – American / Iberia / British Airways

Airfare Deals American Airlines British Airways Iberia Oneworld Porto