Cheapest return flights from Lisbon to Boston in September from $440

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

Return flights

15 Sep - 06 Oct LEVEL
18 Sep - 23 Sep LEVEL
22 Sep - 29 Sep LEVEL
26 Sep - 10 Oct LEVEL
04 Sep - 12 Sep LEVEL
03 Sep - 12 Sep LEVEL
14 Sep - 21 Sep LEVEL
21 Sep - 04 Oct Delta
01 Sep - 15 Sep Aer Lingus
01 Sep - 15 Sep TAP direct
26 Sep - 10 Oct TAP direct
14 Sep - 21 Sep Virgin Atlantic direct
03 Sep - 12 Sep Virgin Atlantic direct
04 Sep - 12 Sep Virgin Atlantic direct

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

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.

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