Cheapest return flights from Washington to Porto in April from $537

Best time to book flights for Washington (DCA) to Porto (OPO) flights at AirHint

AirHint found the following cheapest return flights from Washington (DCA) to Porto (OPO) in April 2025 (see full year).

Return flights

02 Apr - 09 Apr United
01 Apr - 23 Apr British Airways
08 Apr - 15 Apr jetBlue
27 Apr - 04 May jetBlue
03 Apr - 10 Apr Delta
09 Apr - 16 Apr Delta
05 Apr - 04 May Delta
21 Apr - 28 Apr jetBlue
22 Apr - 29 Apr jetBlue
24 Apr - 01 May Delta
17 Apr - 21 Apr Air Canada
12 Apr - 21 Apr British Airways

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

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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