Cheapest return flights from Lisbon to Boston in December from 274€

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

Return flights

04 Dec - 08 Dec Iberia For Level
29 Dec - 05 Jan Vueling Airlines
18 Dec - 28 Dec Iberia For Level
23 Dec - 30 Dec Iberia
19 Dec - 29 Dec Iberia
26 Dec - 10 Jan Iberia For Level
26 Dec - 06 Jan KLM
18 Dec - 28 Dec Virgin Atlantic direct
19 Dec - 29 Dec Virgin Atlantic direct
26 Dec - 10 Jan TAP direct
04 Dec - 08 Dec TAP direct
26 Dec - 06 Jan TAP direct
23 Dec - 30 Dec TAP direct

Also check the deals for one-way 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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