Cheapest return flights from Lisbon to Boston in September from $577

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

Return flights

26 Sep - 01 Oct Air France
23 Sep - 14 Oct Azores Airlines
25 Sep - 03 Oct Iberia
26 Sep - 03 Oct Delta
22 Sep - 29 Sep Air France
24 Sep - 29 Sep Virgin Atlantic direct
23 Sep - 14 Oct Virgin Atlantic direct
22 Sep - 29 Sep Air France direct
20 Sep - 23 Sep Air France
22 Sep - 26 Sep Air France
19 Sep - 22 Sep Air France
19 Sep - 08 Oct Air France
29 Sep - 02 Oct Air France
20 Sep - 23 Sep Air France direct
20 Sep - 27 Sep Air France direct
19 Sep - 08 Oct Air France direct
29 Sep - 02 Oct Virgin Atlantic direct
25 Sep - 03 Oct Virgin Atlantic direct
23 Sep - 25 Sep Ryanair
19 Sep - 22 Sep Air France direct

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

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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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