Cheap Flights from Manila (MNL) to Seattle (SEA) from HK$3,819~

The lowest price advertised for a round-trip journey between Ninoy Aquino Intl. Airport (MNL) and Sea-Tac Airport is HK$6,060. But you better act fast. This price is based on fares listed within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

Most flights can be canceled online, but each airline has its own set of terms and conditions. If you do have to cancel your flight, visit our Customer Service Portal and follow the instructions.

Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Ninoy Aquino Airport to Sea-Tac Airport flights, you'll see a "no change fees" filter for you to select.

With a flight distance of 10,700 kilometers from Ninoy Aquino Airport to Seattle - Tacoma Intl. Airport (SEA), this is a long trip. Ensure that you drink lots of water and take a short walk down the aisle every now and then.

If you want to fly straight from MNL to Sea-Tac Airport, you'll need to book a flight with one or more stops. Unfortunately, there are no airlines that fly directly on this route.

Last-minute planners can occasionally find a bargain, with some of the cheapest airfares from MNL to Sea-Tac Airport arising a few weeks before the date of departure. If you'd rather plan ahead of time, Expedia compares and updates the best flight deals regularly — as early as a year in advance in some cases. It does depend on the carrier though, as not all airlines release prices that far in advance.