Cheapest return flights from Boston to Lisbon in May from 416€

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 2025 (see full year).

Return flights

18 May - 23 May Fly Play
08 May - 12 May Fly Play
07 May - 11 May TAP direct
08 May - 12 May TAP direct
18 May - 26 May Fly Play
11 May - 21 May LEVEL
07 May - 21 May LEVEL
11 May - 12 May LEVEL
07 May - 12 May LEVEL
18 May - 21 May LEVEL
05 May - 09 Jun Azores Airlines
29 May - 05 Jun Azores Airlines
30 May - 06 Jun Fly Play
05 May - 09 Jun TAP direct
29 May - 05 Jun TAP direct
30 May - 06 Jun TAP direct
25 May - 25 Jun Aer Lingus
25 May - 25 Jun TAP direct

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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