Cheapest return flights from Seattle to Manila in September from 601€

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

Return flights

14 Sep - 22 Oct Asiana Airlines
23 Sep - 22 Oct Asiana Airlines
14 Sep - 30 Sep Korean Air
14 Sep - 21 Sep Asiana Airlines
10 Sep - 21 Sep Korean Air
11 Sep - 18 Sep Korean Air
10 Sep - 26 Sep Korean Air
13 Sep - 21 Sep Korean Air
13 Sep - 24 Sep Korean Air
19 Sep - 01 Oct Korean Air
12 Sep - 14 Sep Korean Air
20 Sep - 23 Sep Asiana Airlines
12 Sep - 19 Sep Korean Air
14 Sep - 22 Oct Philippine Airlines direct
19 Sep - 01 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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