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Cheap flights from Singapore to Seattle

SIN — SEA
11 Oct — 18 Oct1
1 adult
1 adult, Economy

Cheap flight deals from Singapore to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Singapore (SIN) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 11 September 2025.

Popular in

August

Cheapest in

February

Average price

C$ 1,207
Highest demand for flights based on searches. 1% potential increase in price (C$ 33 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease (C$ 23 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Best time to book a flight from Singapore to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Singapore with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Singapore to Seattle

How far ahead should I book a flight from Singapore to Seattle?

Use this chart to determine the optimal time to book a round-trip flight from Singapore to Seattle. Price data was last updated on 29 August 2025.

To ensure you get the cheapest price possible for a flight from Singapore to Seattle, you should look to book at least 41 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Singapore to Seattle?

Currently, January is the cheapest month in which you can book a flight from Singapore to Seattle (average of C$ 262). Flying from Singapore to Seattle in December is currently the most expensive (average of C$ 353). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SIN to SEA?

Find hourly flight availability from Singapore to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 11 September 2025.

When flying from Singapore to Seattle, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Related info for your journey

Find useful and relevant information for your journey from Singapore to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How popular is this Singapore to Seattle flight route?

    Within the past month, 1 users have taken a look at flights from Singapore Changi to Seattle/Tacoma Intl.

  • Can I find deals for flights from Singapore to Seattle that include hotel bookings?

    Yes. In addition to deals on Singapore to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Singapore to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Singapore to Seattle.

  • Can I find deals for business class flights from Singapore to Seattle?

    Yes. Cheapflights offers flight deals from Singapore to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Singapore to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Singapore to Seattle (average of C$ 262). Flying from Singapore to Seattle in December is currently the most expensive (average of C$ 353). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Leavenworth
SeaTac
Tukwila
Tacoma
Bothell
Cashmere
Renton
Olympia
Marysville
Lynnwood

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How does Cheapflights help users find flights from Singapore to Seattle?

Deals for Singapore to Seattle flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Singapore to Seattle?

Cheapflights simply makes it quick and affordable to book flights from Singapore to Seattle by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Singapore to Seattle with no change fees?

Certainly. Search results for flights to Seattle from Singapore shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Singapore to Seattle become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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