Cheapest return flights from Washington to Porto in June from $858

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

Return flights

20 Jun - 29 Jun British Airways
22 Jun - 09 Jul British Airways
16 Jun - 23 Jun United
17 Jun - 24 Jun Delta
24 Jun - 01 Jul Air Canada
18 Jun - 25 Jun Delta
25 Jun - 02 Jul Delta
15 Jun - 22 Jun Delta
25 Jun - 04 Jul TAP

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

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