Cheapest return flights from Seattle to Manila in December from $861

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

03 Dec - 09 Dec Singapore Airlines
28 Dec - 07 Jan Asiana Airlines
13 Dec - 08 Jan Alaska Airlines
14 Dec - 14 Jan Singapore Airlines
17 Dec - 03 Jan China Airlines
14 Dec - 04 Jan China Airlines
14 Dec - 14 Jan Philippine Airlines direct
17 Dec - 04 Jan China Airlines
21 Dec - 04 Jan China Airlines
13 Dec - 03 Jan Alaska Airlines
12 Dec - 03 Jan Singapore Airlines

Also check the deals for one-way 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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