Cheapest return flights from Lisbon to Boston in May from 447€

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

Return flights

21 May - 08 Jun Iberia
21 May - 25 May KLM
08 May - 16 May KLM
03 May - 29 May Finnair
31 May - 13 Jun Aer Lingus
21 May - 25 May Virgin Atlantic direct
03 May - 29 May Virgin Atlantic direct
08 May - 16 May Virgin Atlantic direct
18 May - 25 May Azores Airlines
10 May - 17 May Azores Airlines
06 May - 13 May Azores Airlines
21 May - 08 Jun Virgin Atlantic direct
27 May - 26 Jun Aer Lingus
27 May - 27 Jun Aer Lingus
09 May - 16 May Azores Airlines
25 May - 01 Jun Azores Airlines
27 May - 03 Jun Azores Airlines
29 May - 05 Jun Azores Airlines
26 May - 02 Jun Azores Airlines
27 May - 27 Jun Virgin Atlantic direct

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

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