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

Return flights

02 Oct - 01 Nov	Qatar Airways
02 Oct - 01 Nov	Etihad Airways	direct
09 Oct - 19 Oct	IndiGo
12 Oct - 25 Oct	IndiGo
08 Oct - 26 Nov	IndiGo
01 Oct - 04 Oct	IndiGo
08 Oct - 15 Oct	IndiGo
19 Oct - 31 Oct	IndiGo
15 Oct - 31 Oct	IndiGo
18 Oct - 25 Oct	IndiGo
01 Oct - 15 Oct	IndiGo
18 Oct - 31 Oct	IndiGo
18 Oct - 24 Oct	IndiGo
31 Oct - 20 Nov	IndiGo
30 Oct - 06 Nov	IndiGo

Also check the deals for one-way flights from Chicago to Abu Dhabi 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 Abu Dhabi in October from $834

Return flights