Cheapest return flights from Porto to Boston in August from $604

AirHint found the following cheapest return flights from Porto (OPO) to Boston (BOS) in August 2026 (see full year).

Return flights

29 Aug - 07 Sep KLM
01 Aug - 12 Aug Iberia
05 Aug - 23 Aug Ryanair
02 Aug - 03 Aug United
03 Aug - 22 Aug TAP direct
02 Aug - 19 Aug Azores Airlines
05 Aug - 22 Aug Ryanair
05 Aug - 05 Aug United
02 Aug - 19 Aug TAP direct
05 Aug - 23 Aug TAP direct
05 Aug - 22 Aug TAP direct

Also check the deals for one-way flights from Porto to Boston in August.

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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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