AirHint found the following cheapest one-way flights from Lisbon (LIS) to Boston (BOS) in September 2026 (see full year).
One-Way flights
| 16 Sep | Iberia | ||
| 09 Sep | LEVEL | ||
| 15 Sep | LEVEL | ||
| 08 Sep | LEVEL | ||
| 12 Sep | LEVEL | ||
| 02 Sep | LEVEL | ||
| 10 Sep | LEVEL | ||
| 13 Sep | LEVEL | ||
| 03 Sep | LEVEL | ||
| 04 Sep | American Airlines |
Also check the deals for return flights from Lisbon to Boston in September.
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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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