AirHint found the following cheapest one-way flights from Manila (MNL) to Seattle (SEA) in September 2025 (see full year).
07 Sep | China Airlines | ||
07 Sep | Philippine Airlines | direct |
Also check the deals for return flights from Manila to Seattle in September.
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.