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

Return flights

26 Oct - 04 Nov	Air France
14 Oct - 19 Nov	Delta
27 Oct - 04 Nov	Delta
08 Oct - 16 Oct	Delta
12 Oct - 23 Oct	Delta
19 Oct - 29 Oct	Virgin Atlantic
19 Oct - 08 Nov	Air France
20 Oct - 15 Nov	Virgin Atlantic
21 Oct - 15 Nov	Virgin Atlantic
15 Oct - 08 Nov	Virgin Atlantic
22 Oct - 03 Nov	Delta
24 Oct - 30 Oct	Virgin Atlantic
18 Oct - 08 Nov	Virgin Atlantic
25 Oct - 15 Nov	Virgin Atlantic
02 Oct - 07 Oct	Delta
17 Oct - 27 Oct	Delta
05 Oct - 09 Oct	Frontier Airlines
02 Oct - 06 Oct	Delta
07 Oct - 21 Oct	Virgin Atlantic
09 Oct - 16 Oct	Delta

Also check the deals for one-way flights from Chicago 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 Chicago to Paris in October from $520

Return flights