Cheapest return flights from Washington to Porto in April from $544

AirHint found the following cheapest return flights from Washington (DCA) to Porto (OPO) in April 2026 (see full year).

Return flights

22 Apr - 06 May British Airways
22 Apr - 13 May American Airlines
19 Apr - 12 May American Airlines
24 Apr - 01 May Iberia
13 Apr - 20 Apr United
23 Apr - 30 Apr United
12 Apr - 19 Apr British Airways
10 Apr - 17 Apr United
30 Apr - 07 May jetBlue
05 Apr - 12 Apr jetBlue
04 Apr - 11 Apr Delta
11 Apr - 18 Apr Delta

Also check the deals for one-way flights from Washington to Porto in April.

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