Cheapest return flights from Seattle to Manila in August from $707

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

Return flights

19 Aug - 30 Aug Asiana Airlines
17 Aug - 22 Aug Asiana Airlines
12 Aug - 19 Aug Korean Air
13 Aug - 20 Aug Korean Air
07 Aug - 18 Aug Korean Air
12 Aug - 20 Aug Korean Air
20 Aug - 31 Aug Korean Air
18 Aug - 23 Aug ANA
08 Aug - 14 Aug Air Canada
13 Aug - 20 Aug Philippine Airlines direct

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

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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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