Cheapest return flights from Seattle to Manila in May from $557

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

Return flights

21 May - 27 May Singapore Airlines
22 May - 15 Jun Singapore Airlines
08 May - 31 May Singapore Airlines
09 May - 31 May Singapore Airlines
07 May - 29 May Singapore Airlines
22 May - 03 Jun Singapore Airlines
08 May - 30 May Singapore Airlines
13 May - 26 May Philippine Airlines direct
21 May - 27 May Philippine Airlines direct
01 May - 25 May United
08 May - 31 May Philippine Airlines direct
07 May - 29 May Philippine Airlines direct
22 May - 03 Jun Philippine Airlines direct

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

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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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