Cheapest return flights from Boston to Porto in June from $477

Best time to book flights for Boston (BOS) to Porto (OPO) flights at AirHint

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

Return flights

08 Jun - 18 Jun American Airlines
04 Jun - 18 Jun American Airlines
02 Jun - 09 Jun Iberia
03 Jun - 10 Jun British Airways
01 Jun - 08 Jun Iberia
10 Jun - 17 Jun British Airways
23 Jun - 30 Jun British Airways
08 Jun - 21 Jun British Airways
04 Jun - 11 Jun KLM
06 Jun - 25 Jun British Airways
29 Jun - 12 Jul SWISS
28 Jun - 26 Jul Austrian Airlines
23 Jun - 07 Jul Lufthansa
28 Jun - 06 Jul TAP direct
29 Jun - 12 Jul TAP direct
09 Jun - 07 Jul TAP direct
25 Jun - 05 Jul TAP direct

Also check the deals for one-way flights from Boston 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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