AirHint found the following cheapest return flights from Hanoi (HAN) to San Francisco (SFO) in September 2025 (see full year).
Return flights
| 07 Sep - 23 Sep | Philippine Airlines | ||
| 30 Sep - 07 Oct | Philippine Airlines | ||
| 21 Sep - 23 Sep | China Airlines | ||
| 02 Sep - 15 Sep | Delta | ||
| 29 Sep - 02 Oct | Qatar Airways | ||
| 28 Sep - 02 Oct | Qatar Airways |
Also check the deals for one-way flights from Hanoi to San Francisco in September.
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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