AirHint found the following cheapest return flights from Oaxaca (OAX) to Chicago (ORD) in October 2025 (see full year).

Return flights

24 Oct - 11 Nov	Viva
23 Oct - 11 Nov	Viva
28 Oct - 11 Nov	Viva
24 Oct - 07 Nov	Viva
25 Oct - 11 Nov	Viva
24 Oct - 04 Nov	Viva
03 Oct - 11 Oct	Viva
16 Oct - 04 Nov	Viva
07 Oct - 11 Oct	Viva
23 Oct - 07 Nov	Viva
28 Oct - 07 Nov	Viva
14 Oct - 04 Nov	Viva
04 Oct - 11 Oct	Viva
06 Oct - 11 Oct	Viva
23 Oct - 26 Oct	Viva
24 Oct - 26 Oct	Viva
16 Oct - 26 Oct	Viva
03 Oct - 15 Oct	Viva
14 Oct - 26 Oct	Viva
14 Oct - 15 Oct	Viva

Also check the deals for one-way flights from Oaxaca to Chicago 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 Oaxaca to Chicago in October from 267€

Return flights