AirHint found the following cheapest return flights from Seattle (SEA) to Warsaw (WAW) in January 2026 (see full year).
Return flights
| 26 Jan - 04 Feb | Lufthansa | ||
| 24 Jan - 31 Jan | Lufthansa | ||
| 18 Jan - 28 Jan | Lufthansa | ||
| 22 Jan - 02 Feb | Air France | ||
| 19 Jan - 24 Jan | Turkish Airlines |
Also check the deals for one-way flights from Seattle to Warsaw in January.
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