Cheapest return flights from Boston to Lisbon in May from $720

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

AirHint found the following cheapest return flights from Boston (BOS) to Lisbon (LIS) in May 2024 (see full year).

Return flights

30 May - 06 Jun ITA Airways
25 May - 31 May ITA Airways
26 May - 29 May Spirit Airlines
31 May - 15 Jun Fly Play
28 May - 15 Jun Spirit Airlines
22 May - 05 Jun Fly Play
31 May - 03 Jun Fly Play
19 May - 05 Jun Icelandair
30 May - 02 Jun ITA Airways
21 May - 05 Jun Air Canada
21 May - 03 Jun Air Canada
29 May - 02 Jun Spirit Airlines
20 May - 27 May ITA Airways
25 May - 28 May ITA Airways
21 May - 25 May Air Canada
21 May - 31 May SWISS
21 May - 28 May SWISS
19 May - 28 May SWISS
22 May - 25 May Fly Play
22 May - 27 May Fly Play

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