Cheapest return flights from Chicago to Hanoi in October from $636

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

Return flights

27 Oct - 10 Nov Cathay Pacific
07 Oct - 19 Oct Cathay Pacific
12 Oct - 19 Oct Cathay Pacific
08 Oct - 15 Oct EVA Air
14 Oct - 27 Oct Japan Airlines
15 Oct - 25 Oct Delta
14 Oct - 29 Oct Delta
14 Oct - 28 Oct Delta

Also check the deals for one-way flights from Chicago to Hanoi in October.

Skyscanner

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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