Cheapest return flights from San Francisco to Hanoi in September from $466

AirHint found the following cheapest return flights from San Francisco (SFO) to Hanoi (HAN) in September 2025 (see full year).

Return flights

09 Sep - 16 Sep China Southern
15 Sep - 22 Sep China Eastern
15 Sep - 21 Sep China Eastern
09 Sep - 23 Sep Philippine Airlines
09 Sep - 25 Sep Philippine Airlines
17 Sep - 22 Sep Philippine Airlines
18 Sep - 22 Sep Philippine Airlines
17 Sep - 24 Sep Philippine Airlines
09 Sep - 06 Oct Philippine Airlines
23 Sep - 07 Oct Philippine Airlines
24 Sep - 08 Oct Philippine Airlines
30 Sep - 21 Oct Philippine Airlines
09 Sep - 08 Oct Philippine Airlines
30 Sep - 16 Oct Philippine Airlines
22 Sep - 01 Oct Philippine Airlines
16 Sep - 23 Sep Asiana Airlines
09 Sep - 10 Oct Philippine Airlines
17 Sep - 03 Oct Asiana Airlines
19 Sep - 30 Sep Philippine Airlines

Also check the deals for one-way flights from San Francisco to Hanoi in September.

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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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