Cheapest return flights from Seattle to Manila in December from $853

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 December 2025 (see full year).

Return flights

08 Dec - 29 Dec Asiana Airlines
08 Dec - 30 Dec Asiana Airlines
01 Dec - 30 Dec Asiana Airlines
02 Dec - 30 Dec Asiana Airlines
03 Dec - 28 Dec Asiana Airlines
03 Dec - 30 Dec Asiana Airlines
04 Dec - 29 Dec Asiana Airlines
04 Dec - 30 Dec Asiana Airlines
07 Dec - 29 Dec Asiana Airlines
09 Dec - 29 Dec Asiana Airlines
28 Dec - 25 Jan Asiana Airlines
29 Dec - 11 Jan Asiana Airlines
26 Dec - 16 Jan Asiana Airlines
26 Dec - 15 Jan Asiana Airlines
27 Dec - 15 Jan Asiana Airlines
26 Dec - 09 Jan Asiana Airlines
28 Dec - 07 Jan Asiana Airlines
10 Dec - 07 Jan Asiana Airlines
21 Dec - 09 Jan Asiana Airlines
13 Dec - 04 Jan Asiana Airlines

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

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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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