Cheapest return flights from Seattle to Manila in December from 725€

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

Return flights

01 Dec - 28 Dec Asiana Airlines
02 Dec - 11 Dec Singapore Airlines
23 Dec - 16 Jan Korean Air
25 Dec - 28 Jan Korean Air
23 Dec - 27 Jan Korean Air
05 Dec - 28 Dec Asiana Airlines
02 Dec - 28 Dec Singapore Airlines
02 Dec - 11 Dec Philippine Airlines direct
29 Dec - 12 Jan ANA
04 Dec - 27 Dec Korean Air
26 Dec - 27 Jan Korean Air
27 Dec - 27 Jan EVA Air
02 Dec - 28 Dec Philippine Airlines direct
31 Dec - 11 Jan Asiana Airlines
22 Dec - 26 Jan Korean Air
14 Dec - 15 Jan Korean Air
25 Dec - 28 Jan Philippine Airlines direct
17 Dec - 29 Dec Korean Air
19 Dec - 26 Dec Alaska Airlines
18 Dec - 30 Dec Philippine Airlines direct

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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