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

Return flights

02 Feb - 09 Feb	Iberia For Level
02 Feb - 16 Feb	Iberia For Level
21 Feb - 26 Feb	Aer Lingus
04 Feb - 11 Feb	Iberia
03 Feb - 10 Feb	Iberia
05 Feb - 12 Feb	Iberia For Level
19 Feb - 05 Mar	Iberia For Level
06 Feb - 13 Feb	Aer Lingus
05 Feb - 19 Feb	Iberia For Level
16 Feb - 02 Mar	Iberia
05 Feb - 10 Feb	Aer Lingus
28 Feb - 07 Mar	Aer Lingus
25 Feb - 02 Mar	Aer Lingus
05 Feb - 12 Feb	TAP	direct
23 Feb - 21 Mar	Aer Lingus
17 Feb - 10 Mar	United
19 Feb - 05 Mar	TAP	direct
23 Feb - 21 Mar	TAP	direct
17 Feb - 10 Mar	TAP	direct
25 Feb - 02 Mar	Air France	direct

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

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 Boston to Lisbon in February from 353€

Return flights