Cheap flights from Singapore to Seattle from $454

In general, November 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 $787. If you don’t want to visit Seattle in November, then you should wait until February to fly from Singapore, when ticket prices are also cheap, with an average price of $835.

On average, the least expensive day to fly to Seattle from Singapore is on a Friday. momondo users have found tickets for Friday departures for as low as $1,077. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Saturday is the most expensive day to depart from Singapore because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,158.

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 $927 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 $857 on momondo.

There are 3 cabin classes available to choose from on Singapore to Seattle flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

As of September 2026, prices for Singapore to Seattle flights are approximately 44% more expensive when compared to flights at the same time last year.

Historically, on average around 16% 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 88 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. Saturday 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 16% of their flights experiencing any sort of delay.

Taipei City (TPE) was the most common stop: 75% of momondo users choosing 1-stop flights on this route connected there.

Flights via San Francisco (SFO) offer the lowest average round-trip price of $760.

Flights connecting via Taipei City (TPE) have the shortest average one-way travel time: 17h 15m.

Taipei City (TPE) has the shortest average layover time for this route: 2h 39m.