Cheapest return flights from Lisbon to Boston in August from 453€

Best time to book flights for Lisbon (LIS) to Boston (BOS) flights at AirHint

AirHint found the following cheapest return flights from Lisbon (LIS) to Boston (BOS) in August 2025 (see full year).

Return flights

26 Aug - 10 Sep Finnair
29 Aug - 07 Sep Finnair
29 Aug - 07 Sep Air France direct
12 Aug - 20 Aug TAP direct
12 Aug - 22 Aug TAP direct
26 Aug - 10 Sep TAP direct
02 Aug - 16 Aug Aer Lingus
02 Aug - 16 Aug TAP direct

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

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.

Book a cheap hotel in Boston

Cheap car rent in Boston