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

Return flights

05 Mar - 17 Mar	LEVEL
06 Mar - 10 Mar	LEVEL
17 Mar - 30 Mar	LEVEL
04 Mar - 03 Apr	LEVEL
10 Mar - 15 Mar	LEVEL
06 Mar - 18 Mar	Finnair
06 Mar - 18 Mar	TAP	direct
18 Mar - 24 Mar	TAP	direct
06 Mar - 10 Mar	TAP	direct
07 Mar - 14 Mar	TAP	direct
05 Mar - 17 Mar	TAP	direct
28 Mar - 04 Apr	Aer Lingus
04 Mar - 03 Apr	TAP	direct
14 Mar - 12 Apr	TAP	direct
30 Mar - 06 Apr	Azores Airlines
28 Mar - 04 Apr	TAP	direct
25 Mar - 01 Apr	Azores Airlines
14 Mar - 11 Apr	TAP
27 Mar - 03 Apr	Azores Airlines

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

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 March from 293€

Return flights