AirHint found the following cheapest return flights from Los Angeles (LAX) to San Francisco (SFO) in September 2026 (see full year).
Return flights
| 01 Sep - 08 Sep | United | direct | |
| 01 Sep - 01 Sep | Delta | direct | |
| 01 Sep - 05 Sep | Delta | direct | |
| 17 Sep - 22 Sep | Delta | direct | |
| 08 Sep - 24 Sep | Delta | direct | |
| 04 Sep - 05 Sep | Delta | direct |
Also check the deals for one-way flights from Los Angeles to San Francisco in September.
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