AirHint found the following cheapest return flights from Chicago (ORD) to Manila (MNL) in September 2025 (see full year).

Return flights

16 Sep - 15 Oct	Korean Air
18 Sep - 24 Sep	ANA
17 Sep - 24 Sep	ANA
18 Sep - 25 Sep	ANA
17 Sep - 29 Sep	ANA
23 Sep - 29 Sep	ANA
24 Sep - 28 Sep	ANA
16 Sep - 25 Sep	Cathay Pacific
30 Sep - 21 Oct	Cathay Pacific
15 Sep - 28 Sep	Cathay Pacific
26 Sep - 29 Sep	ANA
20 Sep - 05 Oct	Cathay Pacific
16 Sep - 11 Oct	Cathay Pacific
18 Sep - 11 Oct	Cathay Pacific
14 Sep - 21 Sep	Cathay Pacific
27 Sep - 04 Oct	Cathay Pacific

Also check the deals for one-way flights from Chicago to Manila in September.

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 Manila in September from 633€

Return flights