AirHint found the following cheapest one-way flights from San Francisco (SFO) to Lisbon (LIS) in August 2025 (see full year).
One-Way flights
| 16 Aug | Iberia | ||
| 19 Aug | Iberia | ||
| 12 Aug | Iberia | ||
| 14 Aug | Iberia | ||
| 17 Aug | Iberia | ||
| 09 Aug | Hawaiian Airlines | ||
| 31 Aug | British Airways | ||
| 04 Aug | Frontier Airlines | ||
| 05 Aug | Iberia | ||
| 13 Aug | British Airways |
Also check the deals for return flights from San Francisco to Lisbon in August.
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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