AirHint found the following cheapest one-way flights from Seattle (SEA) to Paris (CDG) in December 2025 (see full year).
One-Way flights
| 02 Dec | WestJet | ||
| 05 Dec | WestJet | ||
| 09 Dec | WestJet | ||
| 31 Dec | WestJet | ||
| 16 Dec | Alaska Airlines | ||
| 03 Dec | Aer Lingus | ||
| 02 Dec | Air France | direct | |
| 31 Dec | Delta | direct | |
| 28 Dec | Air France | direct | |
| 09 Dec | Air France | direct |
Also check the deals for return flights from Seattle to Paris in December.
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