Cheapest one-way flights from Lisbon to Boston in September from $188

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

One-Way flights

17 Sep LEVEL
15 Sep LEVEL
30 Sep LEVEL
25 Sep LEVEL
08 Sep LEVEL
11 Sep LEVEL
12 Sep LEVEL
04 Sep LEVEL
26 Sep LEVEL
16 Sep LEVEL

Also check the deals for return 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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