Cheapest return flights from Portland to Porto in June from $967

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

Return flights

30 Jun - 07 Jul Icelandair
30 Jun - 09 Jul Icelandair
24 Jun - 01 Jul Icelandair
29 Jun - 06 Jul Alaska Airlines
25 Jun - 02 Jul Alaska Airlines
27 Jun - 04 Jul Icelandair
22 Jun - 29 Jun Alaska Airlines
28 Jun - 05 Jul Icelandair
21 Jun - 28 Jun Alaska Airlines
26 Jun - 03 Jul Alaska Airlines

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

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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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