Cheapest one-way flights from Manila to Seattle in September from $457

Best time to book flights for Manila (MNL) to Seattle (SEA) flights at AirHint

AirHint found the following cheapest one-way flights from Manila (MNL) to Seattle (SEA) in September 2025 (see full year).

One-Way flights

07 Sep China Airlines
07 Sep Philippine Airlines direct

Also check the deals for return flights from Manila to Seattle in September.

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.

Book a cheap hotel in Seattle

Cheap car rent in Seattle