AirHint found the following cheapest one-way flights from San Francisco (SFO) to Lisbon (LIS) in August 2026 (see full year).
One-Way flights
| 15 Aug | British Airways | ||
| 26 Aug | Brussels Airlines | ||
| 31 Aug | KLM | ||
| 29 Aug | Alaska Airlines | ||
| 22 Aug | Lufthansa | ||
| 15 Aug | TAP | direct | |
| 31 Aug | TAP | direct | |
| 26 Aug | TAP | direct | |
| 29 Aug | TAP | direct | |
| 22 Aug | TAP | direct |
Also check the deals for return flights from San Francisco to Lisbon in August.
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