Cheapest return flights from Seattle to Manila in September from 817CAD

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

Return flights

06 Sep - 29 Sep Singapore Airlines
04 Sep - 29 Sep Singapore Airlines
09 Sep - 16 Sep Singapore Airlines
28 Sep - 15 Oct Singapore Airlines
22 Sep - 29 Sep Asiana Airlines
16 Sep - 23 Sep Asiana Airlines
17 Sep - 24 Sep Asiana Airlines
05 Sep - 12 Sep Philippine Airlines direct
17 Sep - 24 Sep Philippine Airlines direct
28 Sep - 15 Oct Philippine Airlines direct

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

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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