AirHint found the following cheapest return flights from Boston (BOS) to Lisbon (LIS) in June 2026 (see full year).

Return flights

06 Jun - 13 Jun	Azores Airlines
01 Jun - 22 Jun	Azores Airlines
04 Jun - 14 Jun	LEVEL
01 Jun - 29 Jun	LEVEL
25 Jun - 12 Jul	LEVEL
01 Jun - 22 Jun	TAP	direct
01 Jun - 29 Jun	TAP	direct
04 Jun - 11 Jun	TAP	direct
14 Jun - 21 Jun	TAP	direct
25 Jun - 12 Jul	TAP	direct
04 Jun - 14 Jun	Air France	direct
06 Jun - 13 Jun	Air France	direct

Also check the deals for one-way flights from Boston to Lisbon in June.

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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Cheapest return flights from Boston to Lisbon in June from 626€

Return flights