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

Return flights

04 Sep - 17 Sep	United
06 Sep - 19 Sep	Air Canada
07 Sep - 22 Sep	United
09 Sep - 16 Sep	ANA
15 Sep - 25 Sep	ANA
04 Sep - 25 Sep	ANA
27 Sep - 13 Oct	United
03 Sep - 10 Sep	ANA
23 Sep - 06 Oct	United
01 Sep - 26 Sep	ANA
25 Sep - 07 Oct	United
19 Sep - 05 Oct	Etihad Airways

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 636€

Return flights