Cheapest one-way flights from Seattle to Manila in December from $309

AirHint found the following cheapest one-way flights from Seattle (SEA) to Manila (MNL) in December 2025 (see full year).

One-Way flights

02 Dec Singapore Airlines
03 Dec Hawaiian Airlines
01 Dec Alaska Airlines
11 Dec Korean Air
30 Dec Asiana Airlines
30 Dec Philippine Airlines direct
03 Dec Philippine Airlines direct
18 Dec Air Canada
11 Dec Philippine Airlines direct
18 Dec Philippine Airlines direct

Also check the deals for return flights from Seattle to Manila in December.

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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