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Cheapest one-way flights from San Francisco (SFO) to Warsaw (WAW), September

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Dates, airline, and price
Dates	Airline	Price
21 Sep	Frontier Airlines
20 Sep	Air France
25 Sep	WestJet
01 Sep	WestJet
02 Sep	Alaska Airlines
02 Sep	LOT Direct Flight
20 Sep	LOT Direct Flight

deals for return flights from San Francisco to Warsaw in September.

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Updated Jul 18, 2026.

About these fares

These results come from our latest search across airlines for your currency. Prices change quickly and are not locked until you complete booking—always confirm the total and fare rules on the partner site.

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Cheapest one-way flights from San Francisco (SFO) to Warsaw (WAW), September

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