AirHint found the following cheapest return flights from Seattle (SEA) to Manila (MNL) in April 2026 (see full year).

Return flights

21 Apr - 12 May	STARLUX Airlines
29 Apr - 06 May	Asiana Airlines
12 Apr - 15 Apr	Asiana Airlines
15 Apr - 18 Apr	Asiana Airlines
29 Apr - 06 May	Philippine Airlines	direct
12 Apr - 15 Apr	Philippine Airlines	direct

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

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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Cheapest return flights from Seattle to Manila in April from $665

Return flights