AirHint found the following cheapest one-way flights from Seattle (SEA) to Paris (CDG) in October 2025 (see full year).

One-Way flights

04 Oct	Frontier Airlines
17 Oct	WestJet
15 Oct	Frontier Airlines
23 Oct	WestJet
14 Oct	Frontier Airlines
20 Oct	WestJet
06 Oct	Alaska Airlines
25 Oct	WestJet
01 Oct	Alaska Airlines
02 Oct	Alaska Airlines

Also check the deals for return flights from Seattle to Paris 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 one-way flights from Seattle to Paris in October from 190€

One-Way flights