AirHint found the following cheapest return flights from San Francisco (SFO) to Ho Chi Minh City (SGN) in September 2026 (see full year).
Return flights
| 16 Sep - 08 Oct | Cathay Pacific | ||
| 12 Sep - 06 Oct | Cathay Pacific | ||
| 19 Sep - 10 Oct | United | ||
| 16 Sep - 08 Oct | Vietnam Airlines | direct | |
| 19 Sep - 10 Oct | Vietnam Airlines | direct |
Also check the deals for one-way flights from San Francisco to Ho Chi Minh City in September.
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