AirHint found the following cheapest return flights from Denver (DEN) to Paris (CDG) in October 2025 (see full year).

Return flights

09 Oct - 16 Oct	Icelandair
19 Oct - 26 Oct	Icelandair
29 Oct - 12 Nov	Icelandair
10 Oct - 13 Oct	Icelandair
02 Oct - 16 Oct	Icelandair
02 Oct - 05 Oct	Icelandair
04 Oct - 24 Oct	Icelandair
03 Oct - 06 Oct	Icelandair
29 Oct - 05 Nov	Icelandair
24 Oct - 31 Oct	Icelandair
14 Oct - 21 Oct	Icelandair
20 Oct - 27 Oct	Delta

Also check the deals for one-way flights from Denver 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 return flights from Denver to Paris in October from 390€

Return flights