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

Return flights

07 Oct - 14 Oct	Scandinavian Airlines
29 Oct - 05 Nov	United
08 Oct - 28 Oct	Scandinavian Airlines
21 Oct - 28 Oct	United
15 Oct - 22 Oct	United
01 Oct - 28 Oct	Scandinavian Airlines
24 Oct - 31 Oct	United
09 Oct - 16 Oct	United
12 Oct - 19 Oct	United
18 Oct - 25 Oct	United
06 Oct - 13 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 456€

Return flights