AirHint found the following cheapest return flights from San Francisco (SFO) to Warsaw (WAW) in October 2025 (see full year).

Return flights

12 Oct - 21 Oct	Scandinavian Airlines
22 Oct - 29 Oct	Scandinavian Airlines
28 Oct - 04 Nov	United
22 Oct - 15 Nov	Scandinavian Airlines
07 Oct - 14 Oct	United
23 Oct - 30 Oct	United
10 Oct - 17 Oct	United
13 Oct - 20 Oct	United
01 Oct - 08 Oct	United
18 Oct - 25 Oct	United
04 Oct - 11 Oct	United

Also check the deals for one-way flights from San Francisco to Warsaw in October.

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 Warsaw in October from $504

Return flights