Cheapest return flights from Lisbon to Boston in May from 341€

Best time to book flights for Lisbon (LIS) to Boston (BOS) flights at AirHint

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

Return flights

05 May - 15 May Fly Play
06 May - 13 May Ryanair
05 May - 12 May LEVEL
01 May - 30 May Vueling Airlines
01 May - 04 May Vueling Airlines
22 May - 26 May Finnair
12 May - 19 May Finnair
01 May - 29 May Vueling Airlines
02 May - 29 May Finnair
02 May - 30 May Finnair
21 May - 04 Jun LEVEL
26 May - 09 Jun British Airways
01 May - 21 Jun Finnair
26 May - 02 Jun Finnair
18 May - 09 Jun Air France
26 May - 09 Jun Air France direct
25 May - 04 Jun Finnair
18 May - 09 Jun Virgin Atlantic direct
29 May - 28 Jun Aer Lingus
25 May - 04 Jun KLM direct

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

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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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