Cheapest return flights from Seattle to Manila in December from 1034€

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

05 Dec - 27 Dec Korean Air
26 Dec - 16 Jan Korean Air
28 Dec - 18 Jan Korean Air
24 Dec - 07 Jan Korean Air
21 Dec - 07 Jan Singapore Airlines
17 Dec - 07 Jan Korean Air
16 Dec - 03 Jan Singapore Airlines
16 Dec - 02 Jan Singapore Airlines
12 Dec - 02 Jan Singapore Airlines
14 Dec - 03 Jan Singapore Airlines
14 Dec - 02 Jan Singapore Airlines
03 Dec - 26 Dec United
19 Dec - 31 Dec United

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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