Cheap flights from Singapore to Seattle from $476

In general, October is the cheapest month to fly from Singapore to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $731. If you don’t want to visit Seattle in October, then you should wait until June to fly from Singapore, when ticket prices are also cheap, with an average price of $823.

Fly from Singapore Changi to Seattle/Tacoma Intl for the best Singapore Changi - Seattle/Tacoma Intl flight prices

You are more likely to see cheaper flights to Seattle from Singapore when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $862 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Singapore for as low as $816 on momondo.

No. A direct flight is the cheapest option for a flight between Singapore to Seattle.

As of May 2026, prices for Singapore to Seattle flights are approximately 40% more expensive when compared to flights at the same time last year.

Delta and United Airlines are the most popular carriers operating from Singapore Changi to Seattle/Tacoma Intl

STARLUX Airlines, Singapore Airlines and EVA Air are the top three most popular airlines that fly to Seattle from Singapore according to our data. STARLUX Airlines is the first choice among our users, with 45% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 3 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.

Historically, on average around 17% of flights between Singapore and Seattle have experienced a delay on any given week. The average delay length over the past 12 months has been 91 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights in the morning have, in the past, seen delays more frequently in comparison.

Friday is statistically the day of the week which experiences the fewest number of delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

According to our data, Singapore Airlines have had the least number of delays on this route over the last 12 months; with about 17% of their flights experiencing any sort of delay.

Taipei City (TPE) was the most common stop: 92% of momondo users choosing 1-stop flights on this route connected there.

Flights via Taipei City (TPE) offer the lowest average round-trip price of $908.

Flights connecting via Taipei City (TPE) have the shortest average one-way travel time: 17h 07m.

Taipei City (TPE) has the shortest average layover time for this route: 2h 21m.