Cheapest return flights from Seattle to Manila in September from $769

Best time to book flights for Seattle (SEA) to Manila (MNL) flights at AirHint

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

Return flights

18 Sep - 25 Sep Singapore Airlines
01 Sep - 13 Sep Asiana Airlines
01 Sep - 16 Sep Asiana Airlines
22 Sep - 26 Sep Asiana Airlines
01 Sep - 26 Sep Asiana Airlines
02 Sep - 05 Sep Asiana Airlines
01 Sep - 29 Sep China Airlines
01 Sep - 30 Sep China Airlines
23 Sep - 28 Sep Asiana Airlines
19 Sep - 26 Sep Singapore Airlines

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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