Cheapest one-way flights from Lisbon to Boston in December from $234

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

One-Way flights

14 Dec Iberia For Level
15 Dec Iberia For Level
24 Dec Iberia For Level
02 Dec Azores Airlines
16 Dec Azores Airlines
08 Dec Azores Airlines
23 Dec Azores Airlines
17 Dec Iberia For Level
27 Dec Iberia
19 Dec British Airways

Also check the deals for return flights from Lisbon to Boston in December.

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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