Cheapest one-way flights from Lisbon to Boston in May from $334

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

One-Way flights

14 May LEVEL
11 May LEVEL
26 May Azores Airlines
04 May Azores Airlines
25 May Azores Airlines
22 May Iberia
29 May Iberia
10 May Azores Airlines
20 May Azores Airlines
24 May Azores Airlines

Also check the deals for return 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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