AirHint found the following cheapest return flights from Lisbon (LIS) to Boston (BOS) in January 2026 (see full year).

Return flights

23 Jan - 27 Jan	LEVEL
30 Jan - 19 Feb	LEVEL
15 Jan - 05 Feb	Vueling Airlines
29 Jan - 19 Feb	LEVEL
15 Jan - 22 Jan	Vueling Airlines
15 Jan - 29 Jan	Vueling Airlines
17 Jan - 19 Jan	LEVEL
15 Jan - 21 Jan	Iberia
23 Jan - 27 Jan	TAP	direct
29 Jan - 18 Feb	Vueling Airlines
15 Jan - 21 Jan	TAP	direct
15 Jan - 29 Jan	TAP	direct
15 Jan - 05 Feb	TAP	direct
29 Jan - 19 Feb	TAP	direct
30 Jan - 19 Feb	TAP	direct
30 Jan - 18 Feb	Vueling Airlines
12 Jan - 18 Jan	British Airways
14 Jan - 21 Jan	Vueling Airlines
29 Jan - 18 Feb	TAP	direct
30 Jan - 18 Feb	TAP	direct

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

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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Cheapest return flights from Lisbon to Boston in January from 291€

Return flights