AirHint found the following cheapest return flights from Lisbon (LIS) to Boston (BOS) in July 2026 (see full year).
Return flights
| 01 Jul - 07 Jul | LEVEL | ||
| 28 Jul - 20 Aug | WestJet | ||
| 28 Jul - 20 Aug | TAP | direct | |
| 01 Jul - 07 Jul | TAP | direct |
Also check the deals for one-way flights from Lisbon to Boston in July.
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