Cheapest return flights from Washington to Porto in June from $1488

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

Return flights

21 Jun - 28 Jun United
20 Jun - 28 Jun British Airways

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

Skyscanner

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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