AirHint found the following cheapest one-way flights from Lisbon (LIS) to Boston (BOS) in December 2025 (see full year).
One-Way flights
| 24 Dec | LEVEL | ||
| 25 Dec | Vueling Airlines | ||
| 24 Dec | TAP | direct | |
| 25 Dec | TAP | direct | |
| 26 Dec | TAP | direct | |
| 27 Dec | Ryanair | ||
| 20 Dec | Ryanair | ||
| 27 Dec | TAP | direct | |
| 30 Dec | TAP | direct | |
| 31 Dec | TAP |
Also check the deals for return flights from Lisbon to Boston in December.
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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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