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

Return flights

10 Sep - 08 Oct	Qatar Airways
10 Sep - 18 Sep	Qatar Airways
08 Sep - 15 Sep	Qatar Airways
24 Sep - 08 Oct	Qatar Airways
07 Sep - 14 Sep	Qatar Airways
18 Sep - 03 Oct	Qatar Airways
13 Sep - 25 Oct	Qatar Airways

Also check the deals for one-way flights from San Francisco to Tehran 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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Cheapest return flights from San Francisco to Tehran in September from $913

Return flights